1
|
Sansilapin C, Tangwangvivat R, Hoffmann CS, Chailek C, Lekcharoen P, Thippamom N, Petcharat S, Taweethavonsawat P, Wacharapluesadee S, Buathong R, Kurosu T, Yoshikawa T, Shimojima M, Iamsirithaworn S, Putcharoen O. Severe fever with thrombocytopenia syndrome (SFTS) in Thailand: using a one health approach to respond to novel zoonosis and its implications in clinical practice. ONE HEALTH OUTLOOK 2024; 6:18. [PMID: 39350294 PMCID: PMC11443680 DOI: 10.1186/s42522-024-00112-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 08/13/2024] [Indexed: 10/04/2024]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS), a tick-borne disease caused by Dabie bandavirus (SFTSV) is an emerging infectious disease of substantial concern in East Asia. In 2019, Ongkittikul S et al. reported the first case of SFTS in Thailand. Our report describes a One Health investigation of SFTS zoonosis examining the index case and suspected animal reservoirs using real-time RT-PCR and immunoassays. We add to the report on the first confirmed case of SFTSV infection in a human in Thailand by conducting a limited but informative One Health surveillance study. Dogs and cats tested positive for SFTSV antibody using IgG ELISA. We conclude that domestic dogs and cats might serve as potential reservoirs for SFTSV spread due to their closer proximity to the index case than other non-domestic animals. Notably, we did not detect SFTSV in synanthropic cats or dogs-nor did we detect SFTSV in Rhipicephalus sanguineus ticks-using RT-PCR. We propose that One Health investigations coupling genomic and serologic assays in response to new SFTS cases could play a pivotal role in preventing and managing SFTS among humans and animals in East Asia. As such, we are establishing a collaborative response to SFTS in Thailand through human outbreak investigations that align with principles of One Health, through environmental surveys and animal RT-PCR and immunoassays. Our investigation highlights the importance of coupling RT-PCR with seroprevalence assays as principal elements of One Health surveillance for SFTS in order to shed light on potential animal reservoirs and track emerging zoonosis.
Collapse
Affiliation(s)
- Chalo Sansilapin
- Department of Disease Control, Ministry of Public Health, Mueang, Nonthaburi, Thailand
| | | | - Curtis S Hoffmann
- Thai Red Cross Emerging Infectious Diseases Clinical Center, King Chulalongkorn Memorial Hospital, Rama IV Road, Bangkok, 10330, Thailand
| | - Chanatip Chailek
- Department of Disease Control, Ministry of Public Health, Mueang, Nonthaburi, Thailand
| | - Paisin Lekcharoen
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Nattakarn Thippamom
- Thai Red Cross Emerging Infectious Diseases Clinical Center, King Chulalongkorn Memorial Hospital, Rama IV Road, Bangkok, 10330, Thailand
| | - Sininat Petcharat
- Thai Red Cross Emerging Infectious Diseases Clinical Center, King Chulalongkorn Memorial Hospital, Rama IV Road, Bangkok, 10330, Thailand
| | - Piyanan Taweethavonsawat
- Parasitology Unit, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Supaporn Wacharapluesadee
- Thai Red Cross Emerging Infectious Diseases Clinical Center, King Chulalongkorn Memorial Hospital, Rama IV Road, Bangkok, 10330, Thailand.
- Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
| | - Rome Buathong
- Department of Disease Control, Ministry of Public Health, Mueang, Nonthaburi, Thailand
| | - Takeshi Kurosu
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomoki Yoshikawa
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Shimojima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Sopon Iamsirithaworn
- Department of Disease Control, Ministry of Public Health, Mueang, Nonthaburi, Thailand
| | - Opass Putcharoen
- Thai Red Cross Emerging Infectious Diseases Clinical Center, King Chulalongkorn Memorial Hospital, Rama IV Road, Bangkok, 10330, Thailand
- Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| |
Collapse
|
2
|
Lee JM, Kim HL, Lim MN, Kim C, La YJ, Jeon YD, Oh WS, Son S, Lee S, Baek H, Hwang DDJ, Park JI. Acute kidney injury as a prognostic marker in severe fever with thrombocytopenia syndrome. Sci Rep 2024; 14:20651. [PMID: 39232049 PMCID: PMC11374777 DOI: 10.1038/s41598-024-71438-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 08/28/2024] [Indexed: 09/06/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne illness with a notable morality risk that is becoming increasingly prevalent in East Asia (14-36%). Increasing evidence indicates a more direct role of the SFTS virus in renal impairment. However, few studies have explored the risk factors for and clinical outcomes of AKI in patients with SFTS. Therefore, in this study, we aimed to investigate risk factors and outcomes associated with AKI in patients with SFTS. In this retrospective cohort study, we included the data of 53 patients who were diagnosed with SFTS virus infection at Kangwon National University Hospital between 2016 and 2020. We incorporated laboratory data and medical information including comorbidities, complications, and mortality. Baseline characteristics, clinical features, laboratory parameters, and mortality rates of the non-AKI and AKI groups were compared. Patient survival of non-AKI and AKI groups were compared using the Kaplan-Meier method. To identify the population with poor prognosis, Cox regression analysis was used to identify the independent risk factors for in-hospital mortality in patients with SFTS. Of the 53 individuals, 29 (54.7%) were male, with an average age of 66.5 years. Nine patients (15.1%) died of SFTS. Twenty-seven (50.9%) patients exhibited AKI; the average time interval from fever onset to AKI occurrence was 3.6 days. Notably, 24 (88.9%) patients developed AKI within the first week of fever onset. Patients in the AKI group exhibited a significantly higher prevalence of diabetes and were older than those in the non-AKI group. The mortality rate was notably higher (29.6%) in the AKI group than in the non-AKI group (3.8%). Within the AKI cohort, advanced stages (stages 2 and 3) showed a 50% mortality rate, which was significantly higher than the 17.6% mortality rate in patients with stage 1 AKI. Additionally, Kaplan-Meier curves revealed lower survival rates among patients with AKI than among those without AKI (P = 0.017). Cox regression analysis identified leukopenia and elevated serum creatinine levels as significant risk factors for mortality. AKI is a common complication associated with SFTS. Moreover, the mortality rate was significantly higher in the patients who developed AKI than in those who did not. Our findings underscore the pivotal role of AKI as a prognostic marker of disease severity in patients with SFTS.
Collapse
Affiliation(s)
- Jin Mi Lee
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Hae Lee Kim
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Myoung-Nam Lim
- Biomedical Research Institute, Kangwon National University Hospital, Chuncheon, Gangwon-Do, South Korea
| | - Changhyup Kim
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Yeon Ju La
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Yong Duk Jeon
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Won Sup Oh
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Seongmin Son
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Sunhwa Lee
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Hyunjeong Baek
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea
| | - Daniel Duck-Jin Hwang
- Department of Ophthalmology, Hangil Eye Hospital, Incheon, South Korea
- Department of Ophthalmology, Catholic Kwandong University College of Medicine, Incheon, South Korea
| | - Ji In Park
- Department of Internal Medicine, Kangwon National University Hospital, Kangwon National University School of Medicine, 156, Baengnyeong-Ro, Chuncheon-Si, Chuncheon, Gangwon-Do, 24289, Republic of Korea.
| |
Collapse
|
3
|
Lee M, Lee E, Kim SW, Kim YK, Bae IG, Kim J, Lee SS, Lee HJ, Lee CS, Jun JB, Kim HA, Jeon MH, Kim YS, Song EH, Jung SI, Baik SH, Kim DM, Kim N, Bang J, Park SW. Severe Fever with Thrombocytopenia Syndrome in South Korea, 2016-2021: Clinical Features of Severe Progression and Complications. Am J Trop Med Hyg 2024; 111:661-670. [PMID: 38981464 PMCID: PMC11376173 DOI: 10.4269/ajtmh.24-0062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/11/2024] [Indexed: 07/11/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infection with a high case fatality rate. The serious clinical features need to be further defined. We performed a retrospective analysis among SFTS patients in South Korea during 2016-2021 to update the current status. The basic epidemiology of all reported cases was analyzed, and the detailed clinical data of the subjects were further collected from study hospitals selected in terms of their geographic location and capability of SFTS care. Cases of SFTS were reported across the country and were greatly increased since the initial endemic phase, even under the passive surveillance system. The case fatality rate remained at approximately 16.8%. Coinfections at admission were present in 7.8% of the patients. Major complications included bleeding (15.2%), hemophagocytic lymphohistiocytosis (6.7%), bacteremia or candidemia (4.0%), and invasive pulmonary aspergillosis (1.7%). It took a median 4 days from the onset of illness to hospital admission. Rapid clinical deterioration was observed with a median 1 day for intensive care unit admission, 3 days for mechanical ventilation, 4 days for renal replacement therapy, and 5 days for death, all after the hospitalization. Multivariate analysis showed that the fatality was associated with older age, bacteremia, or candidemia during hospitalization, and the presence of several variables at admission such as fever, altered mentality, aspartate aminotransferase >200 IU/L, serum creatinine level >1.2 mg/dL, and prolonged prothrombin time and activated partial thromboplastin time. Treatment options to improve clinical outcomes are limited, despite best supportive care. Specific treatment is urgently needed to change the fatal course.
Collapse
Affiliation(s)
- Minkyeong Lee
- Department of Internal Medicine, Seoul National University College of Medicine & Boramae Medical Center, Seoul, Republic of Korea
| | - Eunyoung Lee
- Department of Internal Medicine, Seoul National University College of Medicine & Boramae Medical Center, Seoul, Republic of Korea
| | - Shin-Woo Kim
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Young Keun Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - In-Gyu Bae
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju, Republic of Korea
| | - Jinyeong Kim
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Republic of Korea
| | - Seung Soon Lee
- Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea
| | - Hyo-Jin Lee
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Jae-Bum Jun
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Hyun Ah Kim
- Department of Infectious Diseases, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Min Hyok Jeon
- Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea
| | - Yeon-Sook Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Eun Hee Song
- Department of Internal Medicine, GangNeung Asan Hospital, GangNeung, Republic of Korea
| | - Sook-In Jung
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seung Hee Baik
- Department of Internal Medicine, Cheju Halla Hospital, Jeju, Republic of Korea
| | - Dong-Min Kim
- Department of Internal Medicine, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Namhee Kim
- Department of Laboratory Medicine, Seoul National University College of Medicine & Boramae Medical Center, Seoul, Republic of Korea
| | - Jihwan Bang
- Department of Internal Medicine, Seoul National University College of Medicine & Boramae Medical Center, Seoul, Republic of Korea
| | - Sang-Won Park
- Department of Internal Medicine, Seoul National University College of Medicine & Boramae Medical Center, Seoul, Republic of Korea
| |
Collapse
|
4
|
Chu XJ, Song DD, Chu N, Wu JB, Wu X, Chen XZ, Li M, Li Q, Chen Q, Sun Y, Gong L. Spatial and Temporal Analysis of Severe Fever with Thrombocytopenia Syndrome in Anhui Province from 2011 to 2023. J Epidemiol Glob Health 2024; 14:503-512. [PMID: 39222226 PMCID: PMC11442876 DOI: 10.1007/s44197-024-00235-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/22/2024] [Indexed: 09/04/2024] Open
Abstract
OBJECTIVE To analyze the spatial autocorrelation and spatiotemporal clustering characteristics of severe fever with thrombocytopenia syndrome(SFTS) in Anhui Province from 2011 to 2023. METHODS Data of SFTS in Anhui Province from 2011 to 2023 were collected. Spatial autocorrelation analysis was conducted using GeoDa software, while spatiotemporal scanning was performed using SaTScan 10.0.1 software to identify significant spatiotemporal clusters of SFTS. RESULTS From 2011 to 2023, 5720 SFTS cases were reported in Anhui Province, with an average annual incidence rate of 0.7131/100,000. The incidence of SFTS in Anhui Province reached its peak mainly from April to May, with a small peak in October. The spatial autocorrelation results showed that from 2011 to 2023, there was a spatial positive correlation(P < 0.05) in the incidence of SFTS in all counties and districts of Anhui Province. Local autocorrelation high-high clustering areas are mainly located in the south of the Huaihe River. The spatiotemporal scanning results show three main clusters of SFTS in recent years: the first cluster located in the lower reaches of the Yangtze River, the eastern region of Anhui Province; the second cluster primarily focused on the region of the Dabie Mountain range, while the third cluster primarily focused on the region of the Huang Mountain range. CONCLUSIONS The incidence of SFTS in Anhui Province in 2011-2023 was spatially clustered.
Collapse
Affiliation(s)
- Xiu-Jie Chu
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Dan-Dan Song
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Na Chu
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Jia-Bing Wu
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Xiaomin Wu
- Microbiological Laboratory, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
- Microbiological Laboratory, Public Health Research Institute of Anhui Province, Hefei, China
| | - Xiu-Zhi Chen
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Ming Li
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Qing Li
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China
| | - Qingqing Chen
- Microbiological Laboratory, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
- Microbiological Laboratory, Public Health Research Institute of Anhui Province, Hefei, China
| | - Yong Sun
- Microbiological Laboratory, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
- Microbiological Laboratory, Public Health Research Institute of Anhui Province, Hefei, China
| | - Lei Gong
- Department of Acute Infectious Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, China.
| |
Collapse
|
5
|
Ji SR, Byun HR, Rieu MS, Han SW, Nam HY, Seo S, Park SY, Kang HY, Choi CY, Cho SY, Hwang BY, Chae JS. First detection of Bandavirus dabieense in ticks collected from migratory birds in the Republic of Korea. Acta Trop 2024; 257:107279. [PMID: 38871069 DOI: 10.1016/j.actatropica.2024.107279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/15/2024]
Abstract
The causative agent of severe fever with thrombocytopenia syndrome (SFTS) is Bandavirus dabieense, an emerging tick-borne zoonotic pathogen. Migratory birds have often been suggested as potential carriers of ticks that can transmit Bandavirus dabieense; however, their role remains unclear. The Republic of Korea (ROK) holds an important position as a stopover on the East Asian-Australasian Flyway. The present study aimed to investigate the potential involvement of migratory birds in the transmission of the SFTS virus (SFTSV) in the ROK. A total of 4,497 ticks were collected across various regions, including Heuksando and Daecheongdo, in the ROK, from bird migration seasons in 2022 and 2023. Genetic analysis of the SFTSV was performed for 96 ticks collected from 20 different species of migratory birds. Polymerase chain reaction (PCR) fragments of SFTSV were detected in one Haemaphysalis concinna nymph collected from a Black-faced Bunting (Emberiza spodocephala) and one Ixodes turdus nymph collected from an Olive-backed Pipit (Anthus hodgsoni) on Daecheongdo and Heuksando, respectively, during their northward migration in two spring seasons. This finding suggests that migratory birds can be considered as possible carriers and long-distance dispersers of ticks and associated tick-borne diseases. This study highlights the importance of clarifying the role and impact of migratory birds in the rapid expansion of tick-borne diseases, facilitating enhanced preparedness and the development of mitigation measures against emerging SFTS across and beyond East Asia.
Collapse
Affiliation(s)
- Seong-Ryeong Ji
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hye-Ryung Byun
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Mi-Sun Rieu
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sun-Woo Han
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyun-Young Nam
- The Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Seulgi Seo
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Se-Young Park
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hwa-Yeon Kang
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Chang-Yong Choi
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - So-Yeon Cho
- Bird Research Center, Korea National Park Research Institute, Shinan County, Jeonnam 58863, Republic of Korea
| | - Bo-Yeon Hwang
- Bird Research Center, Korea National Park Research Institute, Shinan County, Jeonnam 58863, Republic of Korea
| | - Joon-Seok Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea.
| |
Collapse
|
6
|
Yang M, Yin M, Hou B, Zhou L, Wang J, Zhao Z. Analysis of early warning indicators of death in patients with severe fever with thrombocytopenia syndrome. BMC Infect Dis 2024; 24:765. [PMID: 39090556 PMCID: PMC11293107 DOI: 10.1186/s12879-024-09599-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 07/08/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND Since its discovery, severe fever with thrombocytopenia syndrome (SFTS) has been characterized by rapid progression and poor prognosis, and no specific treatment is available. The aim of this study was to investigate the early warning indicators of mortality in SFTS patients. METHODS This is a retrospective cross-sectional study. The study subjects were patients who were admitted to the hospital with a confirmed diagnosis of SFTS from January 2023 to October 2023, and their clinical symptoms and signs at the time of admission, as well as the laboratory indexes of the first blood collection after admission were collected, grouped according to the prognosis, and statistically analyzed. RESULTS A total of 141 patients were collected, of which 27 patients died and 114 patients were in the survival group. Through statistical analysis, patients with combined hemorrhagic manifestations, disturbance of consciousness, lymphopenia, elevated lipase, and prolonged thrombin time on admission were independent risk factors for patients' death. By plotting the working characteristic curve of the subjects, as well as calculating the area under the curve, the results showed that the AUC of lymphopenia count was 0.670, 95% CI (0.563-0.776), P = 0.006; the AUC of elevated serum lipase index was 0.789, 95% CI (0.699-0.878), p < 0.001; the AUC of prolonged thrombin time was 0.749, 95% CI (0.645-0.854), p < 0.001. CONCLUSION Patients with hemorrhagic manifestations, disturbance of consciousness, lymphocyte reduction, elevated serum lipase, and prolonged thrombin time on admission are more worthy of the clinician's attention, and require early and effective interventions to avoid further disease progression.
Collapse
Affiliation(s)
- Mianyu Yang
- Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Hefei, Bengbu Medical University, Hefei, 230011, Anhui, China
- Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Hefei, Hefei, 230011, Anhui, China
| | - Ming Yin
- Department of Intensive Care Unit, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230000, China
| | - Bingmei Hou
- Department of Endocrinology, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, Anhui, 230011, China
- The Fifth Clinical School of Medicine, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Lijuan Zhou
- Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Hefei, Bengbu Medical University, Hefei, 230011, Anhui, China
- Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Hefei, Hefei, 230011, Anhui, China
| | - Jiling Wang
- Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Hefei, Bengbu Medical University, Hefei, 230011, Anhui, China.
- Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Hefei, Hefei, 230011, Anhui, China.
- Intersection of Guangde Road and Leshui Road Hefei, Anhui, 230011, China.
| | - Zonghao Zhao
- Department of Infectious Diseases, The First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China.
- , No.218 Susong Road, Baohe District, Hefei, 230041, Anhui, China.
| |
Collapse
|
7
|
Chae JB, Rim JM, Han SW, Cho YK, Kang JG, Chae JS. Prevalence, Isolation, and Molecular Characterizationof Severe Fever with Thrombocytopenia Syndrome Virus in Cattle from the Republic of Korea. Vector Borne Zoonotic Dis 2024. [PMID: 39029504 DOI: 10.1089/vbz.2024.0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024] Open
Abstract
Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne disease caused by Bandavirus dabieense. Initially identified in China, this disease has spread throughout Asian countries via tick bites and animal-to-human transmission. However, reports of the prevalence of SFTS virus (SFTSV) in cattle in Korea are lacking. This study aimed to investigate SFTSV infections in grazing cattle in the Republic of Korea (ROK). Materials and Methods: In total, 845 grazing cattle serum samples were collected over 2 years (2019 and 2020) in the ROK, and viral RNA was extracted using a kit. One-step RT-nested PCR was performed to amplify the S-segment of SFTSV. Positive serum samples were used to isolate SFTSV in Vero E6 cells, and the full sequences were analyzed. A phylogenetic tree was constructed using the maximum-likelihood method with MEGA X. In addition, immunoglobulin G antibodies against SFTSV were investigated using an enzyme-linked immunosorbent assay. Results: Here, 4.0% of serum samples (34/845) were positive for SFTSV S-segments, and one virus isolate was cultured in Vero E6 cells. Phylogenetic analysis based on the partial S-segment classified 4 SFTSV isolates as the B-2 genotype, 9 as the B-3 genotype, 18 as an unclassified B genotype, and 3 as the D genotype. One cultured virus was classified as the B-2 genotype based on SFTSV L-, M-, and S-segments. Antibody detection results showed that 21.1% of serum samples (161/763) were positive for SFTSV. Conclusion: To the best of our knowledge, this is the first study performed to identify the prevalence of SFTSV in grazing cattle in the ROK. Our findings indicate the necessity for more intensive and continuous SFTSV monitoring, not only in cattle but also in other animals, to comprehend the genetic diversity of the virus and its potential eco-epidemiological impact on human health.
Collapse
Affiliation(s)
- Jeong-Byoung Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Min Rim
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Sun-Woo Han
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yoon-Kyoung Cho
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jun-Gu Kang
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Republic of Korea
| | - Joon-Seok Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
8
|
Hu LF, Bian TT, Chen Q, Liu MY, Li JJ, Kong QX, Zhang JK, Wu J, Cheng J, Yu R, Qiu YQ, Gao YF, Chen GS, Ye Y, Wu T, Li JB. Viral shedding pattern of severe fever with thrombocytopenia syndrome virus in severely ill patients: A prospective, Multicenter cohort study. Heliyon 2024; 10:e33611. [PMID: 39027598 PMCID: PMC11255444 DOI: 10.1016/j.heliyon.2024.e33611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/20/2024] Open
Abstract
Background Severe fever with thrombocytopenia syndrome (SFTS) is spreading rapidly in Asia. The pathway of SFTS virus shedding from patient and specific use of personal protective equipments (PPEs) against viral transmission have rarely been reported. The study was to determine SFTS virus (SFTSV) shedding pattern from the respiratory, digestive and urinary tract to outside in patients. Methods: Patients were divided into mild and severe groups in three sentinel hospitals for SFTS in Anhui province from April 2020 to October 2022. SFTSV level from blood, throat swabs, fecal/anal swabs, urine and bedside environment swabs of SFTS patients were detected by qRT-PCR. Specific PPEs were applied in healthcare workers contacting with the patients who had oropharyngeal virus shedding and hemorrhagic signs. Results A total of 189 SFTSV-confirmed patients were included in the study, 54 patients died (case fatality rate, 28.57 %). Positive SFTSV in throat swabs (T-SFTSV), fecal/anal swabs (F-SFTSV) and urine (U-SFTSV) were detected in 121 (64.02 %), 91 (48.15 %) and 65 (34.4 %) severely ill patients, respectively. The levels of T-SFTSV, F-SFTSV and U-SFTSV were positively correlated with the load of SFTSV in blood. We firstly revealed that SFTSV positive rate of throat swabs were correlated with occurrence of pneumonia and case fatality rate of patients (P < 0.0001). Specific precaution measures were applied by healthcare workers in participating cardiopulmonary resuscitation and orotracheal intubation for severely ill patients with positive T-SFTSV, no event of SFTSV human-to-human transmission occurred after application of effective PPEs. Conclusions Our research demonstrated SFTSV could shed out from blood, oropharynx, feces and urine in severely ill patients. The excretion of SFTSV from these parts was positively correlated with viral load in the blood. Effective prevention measures against SFTSV human-to-human transmission are needed.
Collapse
Affiliation(s)
- Li-Fen Hu
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Province Key Laboratory of Infectious Diseases, Anhui Medical University, Hefei, China
| | - Ting-Ting Bian
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Qiang Chen
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Meng-Yu Liu
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jia-Jia Li
- Anhui Province Key Laboratory of Infectious Diseases, Anhui Medical University, Hefei, China
| | - Qin-Xiang Kong
- Department of Infectious Diseases, Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jian-Kang Zhang
- Department of Infectious Diseases, Lu'an People's Hospital, Jin'an District, Lu'an, China
| | - Jin Wu
- Anhui Province Key Laboratory of Infectious Diseases, Anhui Medical University, Hefei, China
| | - Jun Cheng
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Rui Yu
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yan-Qin Qiu
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yu-Feng Gao
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Province Key Laboratory of Infectious Diseases, Anhui Medical University, Hefei, China
| | - Guo-Sheng Chen
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ying Ye
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ting Wu
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Province Key Laboratory of Infectious Diseases, Anhui Medical University, Hefei, China
| | - Jia-Bin Li
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Province Key Laboratory of Infectious Diseases, Anhui Medical University, Hefei, China
| |
Collapse
|
9
|
Choi KS, Hwang S, Kim MC, Cho HC, Park YJ, Ji MJ, Han SW, Chae JS. Molecular surveillance of zoonotic pathogens from wild rodents in the Republic of Korea. PLoS Negl Trop Dis 2024; 18:e0012306. [PMID: 38976750 PMCID: PMC11257403 DOI: 10.1371/journal.pntd.0012306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 07/18/2024] [Accepted: 06/21/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Rodents are recognized as major reservoirs of numerous zoonotic pathogens and are involved in the transmission and maintenance of infectious diseases. Furthermore, despite their importance, diseases transmitted by rodents have been neglected. To date, there have been limited epidemiological studies on rodents, and information regarding their involvement in infectious diseases in the Republic of Korea (ROK) is still scarce. METHODOLOGY/PRINCIPAL FINDINGS We investigated rodent-borne pathogens using nested PCR/RT-PCR from 156 rodents including 151 Apodemus agrarius and 5 Rattus norvegicus from 27 regions in eight provinces across the ROK between March 2019 and November 2020. Spleen, kidney, and blood samples were used to detect Anaplasma phagocytophilum, Bartonella spp., Borrelia burgdorferi sensu lato group, Coxiella burnetii, Leptospira interrogans, and severe fever with thrombocytopenia syndrome virus (SFTSV). Of the 156 rodents, 73 (46.8%) were infected with Bartonella spp., 25 (16.0%) with C. burnetii, 24 (15.4%) with L. interrogans, 21 (13.5%) with A. phagocytophilum, 9 (5.8%) with SFTSV, and 5 (3.2%) with Borrelia afzelii. Co-infections with two and three pathogens were detected in 33 (21.1%) and 11 rodents (7.1%), respectively. A. phagocytophilum was detected in all regions, showing a widespread occurrence in the ROK. The infection rates of Bartonella spp. were 83.3% for B. grahamii and 16.7% for B. taylorii. CONCLUSIONS/SIGNIFICANCE To the best of our knowledge, this is the first report of C. burnetii and SFTSV infections in rodents in the ROK. This study also provides the first description of various rodent-borne pathogens through an extensive epidemiological survey in the ROK. These results suggest that rodents harbor various pathogens that pose a potential threat to public health in the ROK. Our findings provide useful information on the occurrence and distribution of zoonotic pathogens disseminated among rodents and emphasize the urgent need for rapid diagnosis, prevention, and control strategies for these zoonotic diseases.
Collapse
Affiliation(s)
- Kyoung-Seong Choi
- Department of Animal Science and Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Sunwoo Hwang
- Department of Animal Science and Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Myung Cheol Kim
- Department of Ecological Science, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Hyung-Chul Cho
- Department of Animal Science and Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Yu-Jin Park
- Department of Animal Science and Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Min-Jeong Ji
- Department of Animal Science and Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Sun-Woo Han
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Joon-Seok Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
10
|
Wang Y, Yang M, Zhou H, Quan C, Kang H. Outbreak of Natural Severe Fever with Thrombocytopenia Syndrome Virus Infection in Farmed Minks, China. Emerg Infect Dis 2024; 30:1299-1301. [PMID: 38781980 PMCID: PMC11139004 DOI: 10.3201/eid3006.240283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024] Open
Abstract
We isolated severe fever with thrombocytopenia syndrome virus (SFTSV) from farmed minks in China, providing evidence of natural SFTSV infection in farmed minks. Our findings support the potential role of farmed minks in maintaining SFTSV and are helpful for the development of public health interventions to reduce human infection.
Collapse
|
11
|
Heo N, Heo SJ, Park YS, Yi S, Lee H, Lee HJ, Kim YC. One-year mortality and morbidities of severe fever with thrombocytopenia syndrome compared with other diseases: A nationwide cohort study in South Korea. PLoS Negl Trop Dis 2024; 18:e0012253. [PMID: 38875294 PMCID: PMC11210842 DOI: 10.1371/journal.pntd.0012253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 06/27/2024] [Accepted: 05/28/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND The long-term mortality and morbidity of patients with severe fever with thrombocytopenia syndrome (SFTS) remain unclear. METHODS This retrospective cohort study was conducted using the National Health Insurance Service dataset on hospitalized patients with SFTS aged ≥20 years between 2016 and 2021 (n = 1,217). Each SFTS case was matched with three controls hospitalized for non-SFTS-related diseases using propensity score matching. The all-cause mortality of patients with SFTS was evaluated during the one-year follow-up and compared with that of controls. Post-discharge events were investigated to determine the effects of SFTS on post-acute sequelae. RESULTS Finally, 1,105 patients with SFTS and 3,315 controls were included. Patients with SFTS had a higher risk of death during the one-year follow-up than that of controls (hazard ratio [HR], 2·26; 95% confidence interval [CI], 1·82-2·81). Thirty-day mortality was significantly higher in the SFTS group (HR, 3·99; 95% CI, 3·07-5·19) than in the control group. An increased risk of death after 31-365 days was observed among controls, though this difference was significant only among patients in their 80s (HR, 0·18; 95% CI, 0·06-0·57). For post-discharge events, patients in the SFTS group exhibited a higher risk of readmission (HR, 1·17; 95% CI, 1·04-1·32) and emergency room visit (HR, 2·32; 95% CI, 1·96-2·76) than those in the control group. CONCLUSION SFTS induces a higher risk of short-term mortality and post-acute sequelae in hospitalized patients during a one-year follow-up than non-SFTS-related diseases. Our results provide guidance for the management of SFTS.
Collapse
Affiliation(s)
- Namwoo Heo
- Division of Infectious Disease, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Seok-Jae Heo
- Division of Biostatistics, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoon Soo Park
- Division of Infectious Disease, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Seonju Yi
- Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Hyunju Lee
- Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Hyo-jung Lee
- Department of Prevention Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yong Chan Kim
- Division of Infectious Disease, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| |
Collapse
|
12
|
Tsai YL, Wechtaisong W, Lee TR, Chang CH, Yu PH, Hwang MH. Hematological and plasma profiles and ticks and tick-borne pathogens in wild Formosan black bears (Ursus thibetanus formosanus). Parasit Vectors 2024; 17:241. [PMID: 38807241 PMCID: PMC11131195 DOI: 10.1186/s13071-024-06320-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 05/04/2024] [Indexed: 05/30/2024] Open
Abstract
BACKGROUND The endangered Formosan black bear (Ursus thibetanus formosanus) is the largest native carnivorous mammal in Taiwan. Diseases, poor management, illegal hunting, and habitat destruction are serious threats to the survival of bear populations. However, studies on the impact of diseases on bear populations are limited. Therefore, this study aimed to establish a database of the hematological and plasma profiles of free-ranging Formosan black bears and investigate the occurrence of ectoparasites, blood parasites, and vector-borne pathogens. METHODS Formosan black bears were captured in Yushan National Park (YNP) and Daxueshan Forest Recreation Area (DSY) in Taiwan. Blood samples were collected from each bear for hematological analysis and plasma biochemistry using a hematology analyzer. Parasites and pathogens were detected using a thin blood smear with Wright-Giemsa staining and polymerase chain reaction (PCR) assay. Additionally, macroscopic ectoparasites were collected from bears to detect blood parasites and other pathogens. Moreover, the relationships between the bear variables (sex, age, and occurrence of parasites or pathogens), ectoparasites, and infectious agents were also analyzed. RESULTS In all, 21 wild bears (14 in YNP and 7 in DSY) were captured and released during the satellite tracking studies. Hematological analysis and plasma biochemistry indicated significant differences in white blood cells (WBC), segments, creatine kinase (CK), and lactate dehydrogenase (LDH) levels between foot snare and culvert-captured bears. Additionally, there were significant differences in total plasma protein (TPP), creatinine, Ca2+, Mg2+, and K+ levels between male and female bears. Moreover, pathogen-infected bears had significantly higher erythrocyte sedimentation rate (ESR; 30 min and 1 h) and globulin levels than uninfected bears. In total, 240 ticks were collected from 13 bears, among which eight adult tick species were identified, including Haemaphysalis flava, Haemaphysalis hystricis, Amblyomma testudinarium, Ixodes ovatus, Dermacentor taiwanensis, Haemaphysalis longicornis, Ixodes acutitarsus, Amblyomma javanense, and nymphs belonging to Haemaphysalis spp. PCR revealed that 13 (61.90%) and 8 (38.10%) bears harbored Hepatozoon ursi and Babesia DNA, respectively. Among the ticks examined, 157 (65.41%) and 128 (53.33%) samples were positive for H. ursi and Babesia, respectively. CONCLUSIONS To the best of our knowledge, this is the first study to establish a database of the hematological and plasma profiles of wild Formosan black bears and investigate ectoparasite infestation and Hepatozoon and Babesia spp. INFECTION In conclusion, these findings may serve as a reference for monitoring the health and population of locally endangered bears.
Collapse
Affiliation(s)
- Yi-Lun Tsai
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
- Veterinary Medical Teaching Hospital, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Wittawat Wechtaisong
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
- Center of Excellence in Animal Vector-Borne Diseases, Veterinary Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Ting-Rong Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
- Institute of Wildlife Conservation, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Chun-Hao Chang
- Institute of Veterinary Clinical Science, College of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Pin-Huan Yu
- Institute of Veterinary Clinical Science, College of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Mei-Hsiu Hwang
- Institute of Wildlife Conservation, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan.
| |
Collapse
|
13
|
Liu Z, Zhao C, Yu H, Zhang R, Xue X, Jiang Z, Ge Z, Xu Y, Zhang W, Lin L, Chen Z. MCP-3 as a prognostic biomarker for severe fever with thrombocytopenia syndrome: a longitudinal cytokine profile study. Front Immunol 2024; 15:1379114. [PMID: 38812521 PMCID: PMC11134196 DOI: 10.3389/fimmu.2024.1379114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/22/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction Severe fever with thrombocytopenia syndrome (SFTS) is characterized by a high mortality rate and is associated with immune dysregulation. Cytokine storms may play an important role in adverse disease regression, this study aimed to assess the validity of MCP-3 in predicting adverse outcomes in SFTS patients and to investigate the longitudinal cytokine profile in SFTS patients. Methods The prospective study was conducted at Yantai Qishan Hospital from May to November 2022. We collected clinical data and serial blood samples during hospitalization, patients with SFTS were divided into survival and non-survival groups based on the clinical prognosis. Results The levels of serum 48 cytokines were measured using Luminex assays. Compared to healthy controls, SFTS patients exhibited higher levels of most cytokines. The non-survival group had significantly higher levels of 32 cytokines compared to the survival group. Among these cytokines, MCP-3 was ranked as the most significant variable by the random forest (RF) model in predicting the poor prognosis of SFTS patients. Additionally, we validated the predictive effects of MCP-3 through receiver operating characteristic (ROC) curve analysis with an AUC of 0.882 (95% CI, 0.787-0.978, P <0.001), and the clinical applicability of MCP-3 was assessed favorably based on decision curve analysis (DCA). The Spearman correlation analysis indicated that the level of MCP-3 was positively correlated with ALT, AST, LDH, α-HBDH, APTT, D-dimer, and viral load (P<0.01). Discussion For the first time, our study identified and validated that MCP-3 could serve as a meaningful biomarker for predicting the fatal outcome of SFTS patients. The longitudinal cytokine profile analyzed that abnormally increased cytokines were associated with the poor prognosis of SFTS patients. Our study provides new insights into exploring the pathogenesis of cytokines with organ damage and leading to adverse effects.
Collapse
Affiliation(s)
- Zishuai Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Chenxi Zhao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Hong Yu
- Department of Infectious Diseases, Yantai Qishan Hospital, Yantai, Shandong, China
| | - Rongling Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xiaoyu Xue
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Zhouling Jiang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ziruo Ge
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yanli Xu
- Department of Infectious Diseases, Yantai Qishan Hospital, Yantai, Shandong, China
| | - Wei Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ling Lin
- Department of Infectious Diseases, Yantai Qishan Hospital, Yantai, Shandong, China
| | - Zhihai Chen
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
14
|
Chang YC, Shimoda H, Jiang MC, Hsu YH, Maeda K, Yamada Y, Hsu WL. Gn protein expressed in plants for diagnosis of severe fever with thrombocytopenia syndrome virus. Appl Microbiol Biotechnol 2024; 108:303. [PMID: 38639795 PMCID: PMC11031438 DOI: 10.1007/s00253-024-13135-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/20/2024] [Accepted: 04/03/2024] [Indexed: 04/20/2024]
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV) causes the highly fatal disease in humans. To facilitate diagnosis, the native form of subunit glycoprotein (Gn), a prime target for potential vaccines and therapies, was produced in Nicotiana benthamiana using a Bamboo mosaic virus-based vector system. By fusion with secretory signal tags, SSExt, derived from the extension protein, and the (SP)10 motif, the yield of the recombinant Gn (rGn) was remarkably increased to approximately 7 mg/kg infiltrated leaves. Ultimately, an rGn-based ELISA was successfully established for the detection of SFTSV-specific antibodies in serum samples from naturally infected monkeys. As validated with the reference method, the specificity and sensitivity of rGn-ELISA were 94% and 96%, respectively. In conclusion, utilizing well-suited fusion tags facilitates rGn production and purification in substantial quantities while preserving its antigenic properties. The rGn-ELISA, characterized by its commendable sensitivity and specificity could serve as a viable alternative diagnostic method for assessing SFTSV seroprevalence. KEY POINTS: • SFTSV Gn, fused with secretory signal tags, was expressed by the BaMV-based vector. • The plant fusion tags increased expression levels and eased the purification of rGn. • The rGn-ELISA was established and validated; its specificity and sensitivity > 94%.
Collapse
Affiliation(s)
- Yu-Chih Chang
- Doctoral Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taichung, Taiwan
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Hiroshi Shimoda
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Min-Chao Jiang
- Doctoral Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taichung, Taiwan
| | - Yau-Heiu Hsu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Disease, Tokyo, Japan
| | - Yumiko Yamada
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Wei-Li Hsu
- Doctoral Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taichung, Taiwan.
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan.
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan.
| |
Collapse
|
15
|
Oh B, Park SC, Yang MS, Yang D, Ham G, Tark D, You MJ, Oh SI, Kim B. Difference in Intraspecies Transmissibility of Severe Fever with Thrombocytopenia Syndrome Virus Depending on Abrogating Type 1 Interferon Signaling in Mice. Viruses 2024; 16:401. [PMID: 38543766 PMCID: PMC10974630 DOI: 10.3390/v16030401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/20/2024] [Accepted: 03/01/2024] [Indexed: 05/23/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS), a tick-borne zoonotic disease, is caused by infection with SFTS virus (SFTSV). A previous study reported that human-to-human direct transmission of SFTSV can occur. However, potential animal-to-animal transmission of SFTSV without ticks has not been fully clarified. Thus, the objective of this study was to investigate potential mice-to-mice transmission of SFTSV by co-housing three groups of mice [i.e., wild-type mice (WT), mice injected with an anti-type I interferon-α receptor-blocking antibody (IFNAR Ab), and mice with knockout of type I interferon-α receptor (IFNAR KO)] as spreaders or recipients with different immune competence. As a result, co-housed IFNAR Ab and IFNAR KO mice showed body weight loss with SFTS viral antigens detected in their sera, extracorporeal secretions, and various organs. Based on histopathology, white pulp atrophy in the spleen was observed in all co-housed mice except WT mice. These results obviously show that IFNAR Ab and IFNAR KO mice, as spreaders, exhibited higher transmissibility to co-housed mice than WT mice. Moreover, IFNAR KO mice, as recipients, were more susceptible to SFTSV infection than WT mice. These findings suggest that type I interferon signaling is a pivotal factor in mice intraspecies transmissibility of SFTSV in the absence of vectors such as ticks.
Collapse
Affiliation(s)
- Byungkwan Oh
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Seok-Chan Park
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Myeon-Sik Yang
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Daram Yang
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Gaeul Ham
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Dongseob Tark
- Laboratory for Infectious Disease Prevention, Korea Zoonosis Research Institute, Jeonbuk National University, 820-120, Hana-ro, Iksan 54531, Republic of Korea;
| | - Myung Jo You
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Sang-Ik Oh
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| | - Bumseok Kim
- Biosafety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (B.O.); (S.-C.P.); (M.-S.Y.); (D.Y.); (G.H.); (M.J.Y.); (S.-I.O.)
| |
Collapse
|
16
|
Liao JR, Liao YH, Liao KM, Wu HH, Tu WC, Lin YH. Nationwide survey of ticks on domesticated animals in Taiwan: Revealing the hidden threat to animal and public health. MEDICAL AND VETERINARY ENTOMOLOGY 2024; 38:99-107. [PMID: 37715613 DOI: 10.1111/mve.12692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/16/2023] [Indexed: 09/17/2023]
Abstract
Ticks are not only bloodsucking ectoparasites but also important vectors of tick-borne diseases (TBDs), posing significant threats to public and animal health. Domesticated animals serve as critical hosts for numerous ticks, highlighting the importance of understanding tick infestations in Taiwan. To address this knowledge gap, we conducted a nationwide survey to identify ticks on domesticated animals and associated environments in 2018 and 2019. A total of 6,205 ticks were collected from 1,337 host animals, revealing the presence of seven tick species, with Rhipicephalus microplus, and Rhipicephalus sanguineus being the dominant species. High infestation rates and widespread distribution of ticks were observed on domesticated animals, especially on dogs and cattle (yellow cattle and angus cattle), and the neighbouring grassland of yellow cattle. While this study has certain limitations, it provides valuable insights into the distribution and prevalence of ticks on domesticated animals in Taiwan and their implications for controlling TBDs. Further research is needed to comprehensively understand the complex interactions among ticks, hosts and pathogens.
Collapse
Affiliation(s)
- Jhih-Rong Liao
- Systematic Zoology Laboratory, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Yi-Hao Liao
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu City, Taiwan
| | - Kuei-Min Liao
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Tainan, Taiwan
| | - Huai-Hui Wu
- Department of Biotechnology, Tajen University, Yanpu Township, Taiwan
| | - Wu-Chun Tu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Tainan, Taiwan
- Department of Entomology, National Chung Hsing University, Taichung City, Taiwan
- School of Life Sciences and Technology, Bandung Institute of Technology, Bandung, Indonesia
| | - Ying-Hsi Lin
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu City, Taiwan
| |
Collapse
|
17
|
Ji M, Hu J, Zhang D, Huang B, Xu S, Jiang N, Chen Y, Wang Y, Wu X, Wu Z. Inhibition of SFTSV replication in humanized mice by a subcutaneously administered anti-PD1 nanobody. EMBO Mol Med 2024; 16:575-595. [PMID: 38366162 PMCID: PMC10940662 DOI: 10.1038/s44321-024-00026-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/18/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a life-threatening disease caused by a novel bunyavirus (SFTSV), mainly transmitted by ticks. With no effective therapies or vaccines available, understanding the disease's mechanisms is crucial. Recent studies found increased expression of programmed cell death-1 (PD-1) on dysfunctional T cells in SFTS patients. However, the role of the PD-1/programmed cell death-ligand 1 (PD-L1) pathway in SFTS progression remains unclear. We investigated PD-1 blockade as a potential therapeutic strategy against SFTSV replication. Our study analyzed clinical samples and performed in vitro experiments, revealing elevated PD-1/PD-L1 expression in various immune cells following SFTSV infection. An anti-PD-1 nanobody, NbP45, effectively inhibited SFTSV infection in peripheral blood mononuclear cells (PBMCs), potentially achieved through the mitigation of apoptosis and the augmentation of T lymphocyte proliferation. Intriguingly, subcutaneous administration of NbP45 showed superior efficacy compared to a licensed anti-PD-1 antibody in an SFTSV-infected humanized mouse model. These findings highlight the involvement of the PD-1/PD-L1 pathway during acute SFTSV infection and suggest its potential as a host target for immunotherapy interventions against SFTSV infection.
Collapse
Affiliation(s)
- Mengmeng Ji
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Jiaqian Hu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Doudou Zhang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Bilian Huang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Shijie Xu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
- Y-Clone Medical Science Co. Ltd., Suzhou, China
| | - Na Jiang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Yuxin Chen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Medical School, Nanjing University, Nanjing, China.
| | - Yujiong Wang
- School of Life Sciences, Ningxia University, Yinchuan, China.
| | - Xilin Wu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China.
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, China.
| | - Zhiwei Wu
- School of Life Sciences, Ningxia University, Yinchuan, China.
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China.
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, China.
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, China.
| |
Collapse
|
18
|
Matsuura Y, Hamakubo E, Nishiguchi A, Momoi Y, Matsuu A. Elucidation of prognostic factors in the acute phase of feline severe fever with thrombocytopenia syndrome virus infection. J Vet Med Sci 2024; 86:211-220. [PMID: 38171741 PMCID: PMC10898982 DOI: 10.1292/jvms.22-0427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a potentially fatal tick-borne zoonotic disease, endemic to Asian regions, including western Japan. Cats appear to suffer a particularly severe form of the disease; however, feline SFTS is not clinically well characterized. Accordingly, in this study, we investigated the associations of, demographic, hematological and biochemical, immunological, and virological parameters with clinical outcome (fatal cases vs. survivors) in SFTSV-positive cats. Viral genomic analysis was also performed. Viral load in blood, total bilirubin, creatine phosphokinase, serum amyloid A, interleukin-6, tumor necrotic factor-α, and virus-specific IgM and IgG differed significantly between survivors and fatal cases, and thus may have utility as prognosticators. Furthermore, survivor profiling revealed high-level of viremia with multiple parameters (white blood cells, platelet, total bilirubin, glucose, and serum amyloid A) beyond the reference range in the 7-day acute phase, and signs of clinical recovery in the post-acute phase (parameters returning to, or tending toward, the reference range). However, SFTSV was still detectable from some survived cats even 14 days after onset of disease, indicating the risk of infection posed by close-contact exposure may persist through the post-acute phase. This study provides useful information for prognostic assessments of acute feline SFTS, and may contribute to early treatment plans for cats with SFTS. Our findings also alert pet owners and animal health professionals to the need for prolonged vigilance against animal-to-human transmission when handling cats that have been diagnosed with SFTS.
Collapse
Affiliation(s)
- Yukiko Matsuura
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Emu Hamakubo
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | | | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathology, Graduate School of Agriculture and Life Science, The University of Tokyo, Tokyo, Japan
| | - Aya Matsuu
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
- Current affiliation: Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| |
Collapse
|
19
|
Fujii H, Fukushi S, Yoshikawa T, Nagata N, Taniguchi S, Shimojima M, Yamada S, Tani H, Uda A, Maeki T, Harada S, Kurosu T, Lim CK, Nakayama E, Takayama-Ito M, Watanabe S, Ebihara H, Morikawa S, Saijo M. Pathological and virological findings of type I interferon receptor knockout mice upon experimental infection with Heartland virus. Virus Res 2024; 340:199301. [PMID: 38096954 PMCID: PMC10733679 DOI: 10.1016/j.virusres.2023.199301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
Heartland virus (HRTV) causes generalized symptoms, severe shock, and multiple organ failure. We previously reported that interferon-α/β receptor knockout (IFNAR-/-) mice infected intraperitoneally with 1 × 107 tissue culture-infective dose (TCID50) of HRTV died, while those subcutaneously infected with the same dose of HRTV did not. The pathophysiology of IFNAR-/- mice infected with HRTV and the mechanism underlying the difference in disease severity, which depends on HRTV infection route, were analyzed in this study. The liver, spleen, mesenteric and axillary lymph nodes, and gastrointestinal tract of intraperitoneally (I.P.) infected mice had pathological changes; however, subcutaneously (S.C.) infected mice only had pathological changes in the axillary lymph node and gastrointestinal tract. HRTV RNA levels in the mesenteric lymph node, lung, liver, spleen, kidney, stomach, intestine, and blood were significantly higher in I.P. infected mice than those in S.C. infected mice. Chemokine ligand-1 (CXCL-1), tumor necrosis factor (TNF)-α, interleukin (IL)-12, interferon (IFN)-γ, and IL-10 levels in plasma of I.P. infected mice were higher than those of S.C. infected mice. These results indicated that high levels of viral RNA and the induction of inflammatory responses in HRTV-infected IFNAR-/- mice may be associated with disease severity.
Collapse
Affiliation(s)
- Hikaru Fujii
- The Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime, 794-8555, Japan; Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan.
| | - Shuetsu Fukushi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Tomoki Yoshikawa
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Noriyo Nagata
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Satoshi Taniguchi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Masayuki Shimojima
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Souichi Yamada
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Hideki Tani
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan; Department of Virology, Toyama Institute of Health, 17-1 Nakataikouyama, Imizu-shi, Toyama, 939-0363, Japan
| | - Akihiko Uda
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Takahiro Maeki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shizuko Harada
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Takeshi Kurosu
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Chang Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Eri Nakayama
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Mutsuyo Takayama-Ito
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shumpei Watanabe
- The Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime, 794-8555, Japan
| | - Hideki Ebihara
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shigeru Morikawa
- The Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime, 794-8555, Japan; Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan; Sapporo City Health & Welfare Bureau, Public Health Office, WEST 19, Chuo-ku West 19,Sapporo, 060-0042, Japan
| |
Collapse
|
20
|
Chiang PS, Lai YW, Chung HH, Chia YT, Wang CC, Teng HJ, Chen SL. First molecular detection of a novel Babesia species from Haemaphysalis hystricis in Taiwan. Ticks Tick Borne Dis 2024; 15:102284. [PMID: 38016211 DOI: 10.1016/j.ttbdis.2023.102284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 11/30/2023]
Abstract
Newly recorded ticks and emerging tick-borne pathogens have recently been reported in subtropical and tropical East Asia. In this study, a total of 1,615 ticks (259 Haemaphysalis hystricis, 1334 Rhipicephalus microplus, 19 H. flava, and 3 R. haemaphysaloides) were collected by flagging from vegetation in Taiwan during 2019-2021. All 1,615 captured tick samples tested negative for SFTSV and Borrelia, but 12 of 356 tick samples tested positive for PCR amplification of a fragment of the 18S rRNA gene of Babesia spp., with an infection rate of 3.37 % (12/356) and a minimum infection rate of 0.74 % (12/1,615). Among the 12 detected Babesia spp., 11 were identified as Babesia bigemina in R. microplus, and the other one, detected in H. hystricis, was classified as an unnamed novel Babesia sp. Interestingly, the 18S rRNA sequence from the isolate detected in H. hystricis shared 98.79 % to 99.50 % identity with those of recent isolates from Japan, China and Nigeria. The exact origin of the Babesia species is not known, but the findings highlight the importance of international cooperation and the exchange of information on ticks and tick-borne pathogens. This represents a rare report of a Babesia sp. identified in H. hystricis, a tick species that has been proposed as a novel vector for some Babesia spp. This study supports H. hystricis as a possible vector of Babesia spp.
Collapse
Affiliation(s)
- Pai-Shan Chiang
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan
| | - Yi-Wen Lai
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan
| | - Han-Hsuan Chung
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan
| | - Yung-Ting Chia
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan
| | - Chien-Cheng Wang
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan
| | - Hwa-Jen Teng
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan
| | - Shiu-Ling Chen
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, No. 6, Linsen S. Road, Taipei City 10050, Taiwan.
| |
Collapse
|
21
|
Rim JM, Han SW, Cho YK, Kang JG, Choi KS, Chae JS. Serologic and Molecular Prevalence of Severe Fever with Thrombocytopenia Syndrome Virus Among Poultry in the Republic of Korea. Vector Borne Zoonotic Dis 2023; 23:662-669. [PMID: 37788402 DOI: 10.1089/vbz.2023.0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by Dabie bandavirus, which belongs to the genus Bandavirus, family Phenuiviridae, and order Bunyavirales. It has been found in tick species, various animals, and humans. The aim of this study was to detect RNA of antigens and antibodies against SFTS virus (SFTSV) among poultry such as chickens, ducks, and wild geese from five provinces in the Republic of Korea (ROK). Materials and Methods: A one-step reverse transcriptase (RT)-PCR and nested PCR were performed after viral RNA extraction. The phylogenetic tree was constructed after sequencing data were analyzed and aligned. An indirect enzyme-linked immunosorbent assay (ELISA) and a neutralization test (NT) were performed to test for IgG antibodies of SFTSV. Results: Of a total of 606 poultry serum samples collected, 568 and 539 serum samples were used to perform ELISA and NT, respectively. Of a total of 606 serum samples tested by RT-PCR targeting the S segment, 15 (2.5%) were positive for SFTSV. From the 15 positive serum samples for the SFTSV antigen, three from chickens, three from ducks, and one from wild geese were classified as genotype B-2; one from chickens was classified as genotype B-3; and three from chickens and four from wild geese were classified as genotype D. Of the 568 serum samples tested by ELISA, 83 (28.0%) from chickens, 81 (32.9%) from ducks, and 8 (30.8%) from wild geese were seropositive. Of the 539 serum samples for which an NT was performed, 113 (38.6%) from chickens and 75 (30.5%) from ducks were positive for SFTSV antibodies. Conclusions: The results of this study provide useful information regarding detection of SFTSV RNA and antibodies among poultry and the possibility of SFTSV transmission in various types of poultry, including chickens, ducks, and wild geese, in the ROK.
Collapse
Affiliation(s)
- Ji-Min Rim
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Sun-Woo Han
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yoon-Kyoung Cho
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jun-Gu Kang
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Republic of Korea
| | - Kyoung-Seong Choi
- Department of Animal Science and Biotechnology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Joon-Seok Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
22
|
Kuan CY, Ou SC, Chang CC, Kao PL, Tsai RS, Rattanapanadda P, Lin TL, Maeda K, Cheng TL, Lee YJ, Chuang ST, Lin SL, Liu HY, Lin FY, Lin JW, Hsu WL, Chou CC. Epidemiology of Severe Fever with Thrombocytopenia Syndrome in Dogs and Cats in Taiwan. Viruses 2023; 15:2338. [PMID: 38140579 PMCID: PMC10747826 DOI: 10.3390/v15122338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Severe Fever with Thrombocytopenia Syndrome (SFTS), caused by the SFTS Virus (SFTSV), is a global health threat. SFTSV in Taiwan has only been reported in ruminants and wild animals. Thus, we aimed to investigate the infection statuses of dogs and cats, the animals with closer human interactions. Overall, the SFTSV RNA prevalence was 23% (170/735), with dogs showing a 25.9% (111/429) prevalence and cats at 19.3% (59/306) prevalence. Noticeably, the prevalence in stray animals (39.8% 77/193) was significantly higher than in domesticated ones (17.2%, 93/542). Among the four categories analyzed, the highest SFTSV prevalence was found in the stray dogs at 53.9% (120/193), significantly higher than the 24.2% prevalence noted in stray cats. In contrast, domesticated animals exhibited similar prevalence rates, with 17.1% for dogs and 17.2% for cats. It is noteworthy that in the domesticated animal groups, a significantly elevated prevalence (45%, 9/20) was observed among cats exhibiting thrombocytopenia compared to those platelet counts in the reference range (4.8%, 1/21). The high infection rate in stray animals, especially stray dogs, indicated that exposure to various outdoor environments influences the prevalence of infections. Given the higher human interaction with dogs and cats, there is a need for proactive measures to reduce the risk associated with the infection of SFTSV in both animals and humans.
Collapse
Affiliation(s)
- Chih-Ying Kuan
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (C.-Y.K.); (S.-C.O.); (C.-C.C.); (R.-S.T.)
| | - Shan-Chia Ou
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (C.-Y.K.); (S.-C.O.); (C.-C.C.); (R.-S.T.)
| | - Chao-Chin Chang
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (C.-Y.K.); (S.-C.O.); (C.-C.C.); (R.-S.T.)
| | - Pei-Ling Kao
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan;
| | - Ruei-Sheng Tsai
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (C.-Y.K.); (S.-C.O.); (C.-C.C.); (R.-S.T.)
| | - Porjai Rattanapanadda
- Food and Drug Administration, Ministry of Public Health, Nonthaburi 11000, Thailand;
| | - Tsai-Lu Lin
- New Taipei City Government Animal Protection and Health Inspection Office, New Taipei City 220066, Taiwan;
| | - Ken Maeda
- National Institute of Infectious Disease, Tokyo 162-8640, Japan;
| | - Tsun-Li Cheng
- Veterinary Medical Teaching Hospital, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan;
| | - Ya-Jane Lee
- Veterinary Hospital, College of Bio-Resources and Agriculture, National Taiwan University, Taipei 10617, Taiwan;
| | - Shih-Te Chuang
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (S.-T.C.); (S.-L.L.)
| | - Shiun-Long Lin
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (S.-T.C.); (S.-L.L.)
| | - Hsien-Yueh Liu
- Department of Animal Healthcare, Hungkuang University, Taichung 433304, Taiwan; (H.-Y.L.); (J.-W.L.)
| | - Fong-Yuan Lin
- Department of Animal Healthcare, Hungkuang University, Taichung 433304, Taiwan; (H.-Y.L.); (J.-W.L.)
| | - Jen-Wei Lin
- Department of Animal Healthcare, Hungkuang University, Taichung 433304, Taiwan; (H.-Y.L.); (J.-W.L.)
| | - Wei-Li Hsu
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (C.-Y.K.); (S.-C.O.); (C.-C.C.); (R.-S.T.)
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chi-Chung Chou
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan; (S.-T.C.); (S.-L.L.)
| |
Collapse
|
23
|
Dupuis AP, Lange RE, Ciota AT. Emerging tickborne viruses vectored by Amblyomma americanum (Ixodida: Ixodidae): Heartland and Bourbon viruses. JOURNAL OF MEDICAL ENTOMOLOGY 2023; 60:1183-1196. [PMID: 37862097 DOI: 10.1093/jme/tjad060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/01/2023] [Accepted: 05/19/2023] [Indexed: 10/21/2023]
Abstract
Heartland (HRTV) and Bourbon (BRBV) viruses are newly identified tick-borne viruses, isolated from serious clinical cases in 2009 and 2014, respectively. Both viruses originated in the lower Midwest United States near the border of Missouri and Kansas, cause similar disease manifestations, and are presumably vectored by the same tick species, Amblyomma americanum Linnaeus (Ixodida: Ixodidae). In this article, we provide a current review of HRTV and BRBV, including the virology, epidemiology, and ecology of the viruses with an emphasis on the tick vector. We touch on current challenges of vector control and surveillance, and we discuss future directions in the study of these emergent pathogens.
Collapse
Affiliation(s)
- Alan P Dupuis
- Wadsworth Center, New York State Department of Health, Griffin Laboratory, 5668 State Farm Road, Slingerlands, NY 12159, USA
| | - Rachel E Lange
- Wadsworth Center, New York State Department of Health, Griffin Laboratory, 5668 State Farm Road, Slingerlands, NY 12159, USA
- Department of Biomedical Sciences, School of Public Health, State University of New York University at Albany, Rensselaer, NY 12144, USA
| | - Alexander T Ciota
- Wadsworth Center, New York State Department of Health, Griffin Laboratory, 5668 State Farm Road, Slingerlands, NY 12159, USA
- Department of Biomedical Sciences, School of Public Health, State University of New York University at Albany, Rensselaer, NY 12144, USA
| |
Collapse
|
24
|
Saga Y, Yoshida T, Yoshida R, Yazawa S, Shimada T, Inasaki N, Itamochi M, Yamazaki E, Oishi K, Tani H. Long-Term Detection and Isolation of Severe Fever with Thrombocytopenia Syndrome (SFTS) Virus in Dog Urine. Viruses 2023; 15:2228. [PMID: 38005905 PMCID: PMC10675301 DOI: 10.3390/v15112228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne infection caused by the SFTS virus (SFTSV), with a high fatality rate of approximately 30% in humans. In recent years, cases of contact infection with SFTSV via bodily fluids of infected dogs and cats have been reported. In this study, clinical and virological analyses were performed in two dogs in which SFTSV infection was confirmed for the first time in the Toyama prefecture. Both dogs recovered; however, one was severely ill and the other mildly ill. The amount of the SFTSV gene was reduced to almost similar levels in both dogs. In the dogs' sera, the SFTSV gene was detected at a low level but fell below the detection limit approximately 2 weeks after onset. Notably, the SFTSV gene was detected at levels several thousand times higher in urine than in other specimens from both dogs. Furthermore, the gene was detected in the urine for a long period of >2 months. The clinical signs disappeared on days 1 or 6 after onset, but infectious SFTSV was detected in the urine up to 3 weeks later. Therefore, it is necessary to be careful about contact with bodily fluids, especially urine, even after symptoms have disappeared.
Collapse
Affiliation(s)
- Yumiko Saga
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| | | | | | - Shunsuke Yazawa
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| | - Takahisa Shimada
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| | - Noriko Inasaki
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| | - Masae Itamochi
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| | - Emiko Yamazaki
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| | - Kazunori Oishi
- Director-General Office, Toyama Institute of Health, Toyama 939-0363, Japan
- Department of Bacteriology, Toyama Institute of Health, Toyama 939-0363, Japan
| | - Hideki Tani
- Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan; (Y.S.)
| |
Collapse
|
25
|
Han SW, Cho YK, Rim JM, Kang JG, Choi KS, Chae JS. Molecular and Serological Survey of Severe Fever with Thrombocytopenia Syndrome Virus in Horses from the Republic of Korea. Vector Borne Zoonotic Dis 2023; 23:595-603. [PMID: 37682292 DOI: 10.1089/vbz.2022.0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023] Open
Abstract
Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging zoonotic tick-borne disease in East Asia caused by the SFTS virus (SFTSV). It is to investigate the presence of SFTSV RNA and antibodies in horses from a slaughterhouse and equestrian centers in the Republic of Korea (ROK). A prevalence study of SFTSV-specific RNA and antibodies was designed from 889 horses in the ROK. Materials and Methods: Serum samples were collected from horses at a slaughterhouse and equestrian centers from 2018 to 2020. To detect the presence of SFTSV, RNA was extracted from the serum samples, and a nested reverse transcription-polymerase chain reaction (RT-PCR) was conducted. Sequencing data were analyzed, and a phylogenetic tree was constructed using the maximum-likelihood method with Molecular Evolutionary Genetics Analysis Version 7.0 software. The horse sera were also tested for SFTSV-specific immunoglobulin G antibodies using enzyme-linked immunosorbent assay (ELISA). Results: Twelve of 889 (1.3%) horse sera were positive for SFTSV RNA, and 452 of 887 (51.0%) horse sera were seropositive by ELISA. Among the RT-PCR-positive samples, 12 of the SFTSV S-segment sequences were classified as sub-genotypes B-2 (n = 6) and B-3 (n = 6). ELISA analysis was evaluated by comparison with neutralization test. We investigated SFTSV infection in horses over a 3-year period, but sampling was not performed evenly by season; continuous surveillance of SFTSV in horses is needed. Conclusions: We report the detection of SFTSV RNA and provide serological data on SFTSV prevalence in horses in the ROK. The detection of SFTSV-specific RNA and antibodies in horses, which are in close proximity to humans, suggests that SFTS is an emerging and important health issue, indicating that more attention to its relevance for equestrian workers is needed.
Collapse
Affiliation(s)
- Sun-Woo Han
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yoon-Kyoung Cho
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Min Rim
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jun-Gu Kang
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Republic of Korea
| | - Kyoung-Seong Choi
- College of Ecology and Environmental Science, Kyungpook National University, Sangju, Republic of Korea
| | - Joon-Seok Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Centre, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
26
|
Moon MY, Kim HK, Chung SJ, Byun JH, Kim HN, Lee W, Lee SW, Monoldorova S, Lee S, Jeon BY, Lim EJ. Genetic Diversity, Regional Distribution, and Clinical Characteristics of Severe Fever with Thrombocytopenia Syndrome Virus in Gangwon Province, Korea, a Highly Prevalent Region, 2019-2021. Microorganisms 2023; 11:2288. [PMID: 37764132 PMCID: PMC10536435 DOI: 10.3390/microorganisms11092288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an arthropod-borne viral disease with a high mortality rate with high fever and thrombocytopenia. We investigated the clinical and epidemiological characteristics and viral genotypes from 2019 to 2021 in Gangwon Province, Korea. Of the 776 suspected cases, 62 were SFTS. The fatality rate was 11.5-28.6% (average rate, 19.4%), and the frequent clinical symptoms were high fever (95.2%), thrombocytopenia (95.2%), and leukopenia (90.3%). Hwacheon had the highest incidence rate per 100,000 persons at 8.03, followed by Inje and Yanggu (7.37 and 5.85, respectively). Goseong, Yangyang, and Hoengseong had rates of 2 or higher; Samcheok, Hongcheon, Jeongsen, and Yeonwol were 1.70-1.98, and Wonju, Gangneung, and Donghae were slightly lower, ranging from 0.31 to 0.74. Of the 57 cases with identified genotypes, eight genotypes (A, B1, B2, B3, C, D, E, and F) were detected, and the B2 genotype accounted for 54.4% (31 cases), followed by the A genotype at 22.8% (13 cases). The B2 and A genotypes were detected throughout Gangwon Province, and other genotypes, B1, B3, C, D, and F, were discovered in a few regions. In particular, genotype A could be further classified into subtypes. In conclusion, SFTS occurred throughout Gangwon Province, and Hwacheon had the highest incidence density. Multiple genotypes of SFTS were identified, with B2 and A being the most common. These findings provide important insights for the understanding and management of SFTS in this region.
Collapse
Affiliation(s)
- Mi-Young Moon
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Hyeon Kyu Kim
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Se-Jin Chung
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Jae Hwan Byun
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Ha-Na Kim
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Woan Lee
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Soon-Won Lee
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| | - Sezim Monoldorova
- Department of Biomedical Laboratory Science, College of Digital Healthcare Convergence, Yonsei University, Wonju 26493, Republic of Korea
| | - Sungkyeong Lee
- Department of Biomedical Laboratory Science, College of Digital Healthcare Convergence, Yonsei University, Wonju 26493, Republic of Korea
| | - Bo-Young Jeon
- Department of Biomedical Laboratory Science, College of Digital Healthcare Convergence, Yonsei University, Wonju 26493, Republic of Korea
| | - Eun-Joo Lim
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea; (M.-Y.M.)
| |
Collapse
|
27
|
Lee K, Seok JH, Kim H, Park S, Lee S, Bae JY, Jeon K, Kang JG, Yoo JR, Heo ST, Cho NH, Lee KH, Kim K, Park MS, Kim JI. Genome-informed investigation of the molecular evolution and genetic reassortment of severe fever with thrombocytopenia syndrome virus. PLoS Negl Trop Dis 2023; 17:e0011630. [PMID: 37713429 PMCID: PMC10529592 DOI: 10.1371/journal.pntd.0011630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/27/2023] [Accepted: 08/30/2023] [Indexed: 09/17/2023] Open
Abstract
BACKGROUND Severe fever with thrombocytopenia syndrome virus (SFTSV) is a viral pathogen causing significant clinical signs from mild fever with thrombocytopenia to severe hemorrhages. World Health Organization has paid special attention to the dramatic increase in human SFTS cases in China, Japan, and South Korea since the 2010s. The present study investigated the molecular evolution and genetic reassortment of SFTSVs using complete genomic sequences. METHODS/PRINCIPAL FINDING We collected the complete genome sequences of SFTSVs globally isolated until 2019 (L segment, n = 307; M segment, n = 326; and S segment, n = 564) and evaluated the evolutionary profiles of SFTSVs based on phylogenetic and molecular selection pressure analyses. By employing a time-scaled Bayesian inference method, we found the geographical heterogeneity of dominant SFTSV genotypes in China, Japan, and South Korea around several centuries before and locally spread by tick-born spillover with infrequent long-distance transmission. Purifying selection predominated the molecular evolution of SFTSVs with limited gene reassortment and fixed substitution, but almost all three gene segments appeared to harbor at least one amino acid residue under positive selection. Specifically, the nonstructural protein and glycoprotein (Gn/Gc) genes were preferential selective targets, and the Gn region retained the highest number of positively selected residues. CONCLUSION/SIGNIFICANCE Here, the large-scale genomic analyses of SFTSVs improved prior knowledge of how this virus emerged and evolved in China, Japan, and South Korea. Our results highlight the importance of SFTSV surveillance in both human and non-human reservoirs at the molecular level to fight against fatal human infection with the virus.
Collapse
Affiliation(s)
- Kyuyoung Lee
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jong Hyeon Seok
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Hyunbeen Kim
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sejik Park
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sohyun Lee
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Joon-Yong Bae
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Kyeongseok Jeon
- Department of Microbiology and Immunology, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jun-Gu Kang
- Laboratory for Vector Borne Disease, Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Republic of Korea
| | - Jeong Rae Yoo
- Department of Internal Medicine, College of Medicine, Jeju National University, Jeju, Republic of Korea
| | - Sang Taek Heo
- Department of Internal Medicine, College of Medicine, Jeju National University, Jeju, Republic of Korea
| | - Nam-Hyuk Cho
- Department of Microbiology and Immunology, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Keun Hwa Lee
- Department of Microbiology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Kisoon Kim
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
- Vaccine Innovation Center, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Man-Seong Park
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
- Vaccine Innovation Center, College of Medicine, Korea University, Seoul, Republic of Korea
- Biosafety Center, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jin Il Kim
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea
- Vaccine Innovation Center, College of Medicine, Korea University, Seoul, Republic of Korea
- Biosafety Center, College of Medicine, Korea University, Seoul, Republic of Korea
| |
Collapse
|
28
|
Kim JY, Yoo JR, Kim M, Oh H, Heo ST. Epidemiologic and Clinical Characteristics of Patients with Severe Fever with Thrombocytopenia Syndrome at Tertiary Hospital in Jeju for 10 years. Infect Chemother 2023; 55:377-387. [PMID: 37503779 PMCID: PMC10551713 DOI: 10.3947/ic.2023.0035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/05/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Severe fever with thrombocytopenia syndrome (SFTS), which was first discovered in China in 2009, is an infectious disease with a high mortality rate, particularly in East Asia. This study aimed to investigate the epidemiological and clinical characteristics and risk factors for mortality by analyzing SFTS cases accumulated for up to ten years in Jeju, Korea. MATERIALS AND METHODS Medical records of patients diagnosed with SFTS between March 2013 and August 2022 at a tertiary hospital in Jeju were analyzed retrospectively. We investigated data of patients with SFTS on the epidemiologic and clinical characteristics, laboratory findings, and administered treatments and compared the differences between fatal and non-fatal groups. RESULTS We enrolled 91 SFTS-confirmed patients. The median age of patients was 62 years, and the fatality rate increased with age (P = 0.004). Fever was the most common symptom (84.6%), and diarrhea (37.4%) was also present in some cases. The overall fatality rate was 10.9%. Dyspnea (20.0% vs. 0.0%, P = 0.009) and changes in mental status (70.0% vs. 11.0%, P <0.001) were more frequent in fatal cases. Risk factor assessment revealed that a high aspartate aminotransferase /alanine aminotransferase ratio (odds ratio [OR]: 39.568, 95% confidence interval [CI]: 1.479 - 1,058.639, P = 0.028) and elevated total bilirubin levels (OR: 53.037, 95% CI: 1.064 - 2,643.142, P = 0.046) were also significantly associated with fatal cases. Plasma exchange (40.7%) was the most commonly administered treatment. CONCLUSION SFTS has a high mortality rate; therefore, awareness of SFTS must be raised among physicians and citizens living in tick-inhabited areas, such as Jeju.
Collapse
Affiliation(s)
- Jae Yeon Kim
- College of Medicine, Catholic Kwandong University, International St. Mary's Hospital, Incheon, Korea
| | - Jeong Rae Yoo
- Division of Infectious Diseases, Department of Internal Medicine, Jeju National University College of Medicine, Jeju, Korea
- Department of Internal Medicine, Jeju National University Hospital, Jeju, Korea
| | - Misun Kim
- Department of Internal Medicine, Jeju National University Hospital, Jeju, Korea
| | - Hyunjoo Oh
- Department of Internal Medicine, Andong Hospital, Andong, Korea
| | - Sang Taek Heo
- Division of Infectious Diseases, Department of Internal Medicine, Jeju National University College of Medicine, Jeju, Korea
- Department of Internal Medicine, Jeju National University Hospital, Jeju, Korea.
| |
Collapse
|
29
|
Ai L, Wang W, Teng Z. Advancements in the Worldwide Detection of Severe Fever with Thrombocytopenia Syndrome Virus Infection from 2009 to 2023. China CDC Wkly 2023; 5:687-693. [PMID: 37593140 PMCID: PMC10427339 DOI: 10.46234/ccdcw2023.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a growing concern as an emerging tick-borne infectious disease originating from the SFTS virus (SFTSV), a recent addition to the Phlebovirus genus under the family of bunyaviruses. SFTS is typically identified by symptoms such as fever, thrombocytopenia, leukopenia, and gastrointestinal problems, accompanied by a potentially high case fatality rate. Thus, early and accurate diagnosis is essential for effective treatment and disease management. This review delves into the existing methodologies for SFTS detection, including pathogenic, molecular, and immunological technologies.
Collapse
Affiliation(s)
- Lin Ai
- Institute of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Wei Wang
- Institute of Microbiology Laboratory, Shanghai Institute of Preventive Medicine, Shanghai, China
| | - Zheng Teng
- Institute of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
- Institute of Microbiology Laboratory, Shanghai Institute of Preventive Medicine, Shanghai, China
| |
Collapse
|
30
|
Quan C, Liu Q, Yu L, Li C, Nie K, Ding G, Zhou H, Wang X, Sun W, Wang H, Yue M, Wei L, Zheng W, Lyu Q, Xing W, Zhang Z, Carr MJ, Zhang H, Shi W. SFTSV infection is associated with transient overproliferation of monoclonal lambda-type plasma cells. iScience 2023; 26:106799. [PMID: 37250798 PMCID: PMC10212991 DOI: 10.1016/j.isci.2023.106799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 04/07/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
The impairment of antibody-mediated immunity is a major factor associated with fatal cases of severe fever with thrombocytopenia syndrome (SFTS). By collating the clinical diagnosis reports of 30 SFTS cases, we discovered the overproliferation of monoclonal plasma cells (MCP cells, CD38+cLambda+cKappa-) in bone marrow, which has only been reported previously in multiple myeloma. The ratio of CD38+cLambda+ versus CD38+cKappa+ in SFTS cases with MCP cells was significantly higher than that in normal cases. MCP cells presented transient expression in the bone marrow, which was distinctly different from multiple myeloma. Moreover, the SFTS patients with MCP cells had higher clinical severity. Further, the overproliferation of MCP cells was also observed in SFTS virus (SFTSV)-infected mice with lethal infectious doses. Together, SFTSV infection induces transient overproliferation of monoclonal lambda-type plasma cells, which have important implications for the study of SFTSV pathogenesis, prognosis, and the rational development of therapeutics.
Collapse
Affiliation(s)
- Chuansong Quan
- Department of Infectious Disease, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Qinghua Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Lijuan Yu
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Chunjing Li
- Department of Hematology, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Kaixiao Nie
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Guoyong Ding
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji’nan 250117, China
| | - Hong Zhou
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Xinli Wang
- Department of Pathology, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Wenwen Sun
- Department of Pathology, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Huiliang Wang
- Department of Infectious Disease, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Maokui Yue
- Department of Critical Care Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Li Wei
- Department of Respiratory Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Wenjun Zheng
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Qiang Lyu
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji’nan 250117, China
| | - Weijia Xing
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji’nan 250117, China
| | - Zhenjie Zhang
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Michael J. Carr
- National Virus Reference Laboratory, School of Medicine, University College Dublin, Dublin 4, Ireland
- International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, N20 W10 Kita-ku, Sapporo 001-0020, Japan
| | - Hong Zhang
- Department of Infectious Disease, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
- Department of Hematology, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Weifeng Shi
- Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji’nan 250117, China
| |
Collapse
|
31
|
Nishiyama M, Yokota K, Morimoto N. Recurrent rhabdomyolysis in a patient with a history of rhabdomyolysis due to severe fever with thrombocytopenia syndrome. IDCases 2023; 32:e01807. [PMID: 37273846 PMCID: PMC10238824 DOI: 10.1016/j.idcr.2023.e01807] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a hemorrhagic fever syndrome that is endemic to East Asia. Here, we describe a case of rhabdomyolysis, thought to have been caused by pemafibrate (which was prescribed for hyperlipidemia) or bacterial infection, in a patient who had experienced SFTS-induced rhabdomyolysis 4 years ago. This case suggests that SFTS causes muscle degeneration and can lead to recurrent rhabdomyolysis as a long-term complication.
Collapse
Affiliation(s)
- Masashi Nishiyama
- Clinical Training Center, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu, Kagawa 760-8557, Japan
| | - Kyoko Yokota
- Department of Infectious Diseases, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu, Kagawa 760-8557, Japan
| | - Nobutoshi Morimoto
- Department of Neurology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu, Kagawa 760-8557, Japan
| |
Collapse
|
32
|
Yoshikawa R, Kawakami M, Yasuda J. The NSs protein of severe fever with thrombocytopenia syndrome virus differentially inhibits the type 1 interferon response among animal species. J Biol Chem 2023:104819. [PMID: 37187292 DOI: 10.1016/j.jbc.2023.104819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/17/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV), which has been reported in China, Korea, Japan, Vietnam, and Taiwan, is a causative agent of severe fever thrombocytopenia syndrome (SFTS). This virus has a high mortality and induces thrombocytopenia and leukocytopenia in humans, cats, and aged ferrets, whereas immunocompetent adult mice infected with SFTSV never show symptoms. Anti-SFTSV antibodies have been detected in several animals- including goats, sheep, cattle, and pigs. However, there are no reports of SFTS in these animals. Previous studies have reported that the nonstructural protein NSs of SFTSV inhibits the type I interferon (IFN-I) response through the sequestration of human signal transducer and activator of transcription (STAT) proteins. In this study, comparative analysis of the function of NSs as IFN antagonists in human, cat, dog, ferret, mouse, and pig cells revealed a correlation between pathogenicity of SFTSV and the function of NSs in each animal. Furthermore, we found that the inhibition of IFN-I signaling and phosphorylation of STAT1 and STAT2 by NSs depended on the binding ability of NSs to STAT1 and STAT2. Our results imply that the function of NSs in antagonizing STAT2 determines the species-specific pathogenicity of SFTSV.
Collapse
Affiliation(s)
- Rokusuke Yoshikawa
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN); National Research Center for the Control and Prevention of Infectious Diseases (CCPID)
| | - Masahiro Kawakami
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN)
| | - Jiro Yasuda
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN); National Research Center for the Control and Prevention of Infectious Diseases (CCPID); Graduate School of Biomedical Sciences and Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
| |
Collapse
|
33
|
Kim DM, Yu BJ, Kim DY, Seo JW, Yun NR, Kim CM, Kim YK, Jung SI, Kim UJ, Kim SE, Kim HA, Kim ES, Hur J, Lee SH, Jeong HW, Heo JY, Jung DS, Kim J, Park SH, Kwak YG, Lee S, Lim S, Chatterjee S. Clinically differential diagnosis of human granulocytic anaplasmosis and severe fever with thrombocytopenia syndrome. Sci Rep 2023; 13:6837. [PMID: 37100782 PMCID: PMC10133271 DOI: 10.1038/s41598-023-32061-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/22/2023] [Indexed: 04/28/2023] Open
Abstract
This study analyzed HGA and SFTS in patients with suspected tick-borne infection by focusing on key differences that clinicians can easily recognize. A retrospective analysis was performed on confirmed patients with HGA or SFTS in 21 Korean hospitals from 2013 to 2020. A scoring system was developed by multivariate regression analysis and accuracy assessment of clinically easily discriminable parameters was performed. The multivariate logistic regression analysis revealed that sex (especially male sex) (odds ratio [OR] 11.45, P = 0.012), neutropenia (< 1500) (OR 41.64, P < 0.001), prolonged activated partial thromboplastin time (OR 80.133, P < 0.001), and normal C-reactive protein concentration (≤ 1.0 mg/dL; OR 166.855, P = 0.001) were significantly associated with SFTS but not with HGA. Each factor, such as meaningful variables, was given 1 point, and a receiver-operating characteristic curve with a cutoff value (> 1) in a 5-point scoring system (0-4 points) was analyzed to evaluate the accuracy of differentiation between HGA and SFTS. The system showed 94.5% sensitivity, 92.6% specificity, and an area under the receiver-operating characteristic curve of 0.971 (0.949-0.9). Where HGA and SFTS are endemic, the scoring system based on these four parameters such as sex, neutrophil count, activated partial thromboplastin time, and C-reactive protein concentration will facilitate the differential diagnosis of HGA and SFTS in the emergency room in patients with suspected tick-borne infectious diseases.
Collapse
Affiliation(s)
- Dong-Min Kim
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea.
| | - Byung Jun Yu
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Da Young Kim
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Jun-Won Seo
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Na-Ra Yun
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Choon Mee Kim
- Premedical Science, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Young Keun Kim
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea
| | - Sook In Jung
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Uh Jin Kim
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Eun Kim
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hyun Ah Kim
- Division of Infectious Diseases, Keimyung University Dongsan Hospitial, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Eu Suk Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Jian Hur
- Department of Internal Medicine, Yeungnam University Medical Center, Daegu, Republic of Korea
| | - Sun Hee Lee
- Department of Internal Medicine, School of Medicine, Pusan National University, Busan, Republic of Korea
| | - Hye Won Jeong
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Jung Yeon Heo
- Department of Infectious Diseases, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Dong Sik Jung
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jieun Kim
- Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Sun Hee Park
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yee Gyung Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Sujin Lee
- Department of Internal Medicine, College of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Seungjin Lim
- Department of Internal Medicine, College of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Shilpa Chatterjee
- Department of Biomedical Science, College of Medicine, Chosun University, Gwangju, Republic of Korea
| |
Collapse
|
34
|
Urata S, Yoshikawa R, Yasuda J. Calcium Influx Regulates the Replication of Several Negative-Strand RNA Viruses Including Severe Fever with Thrombocytopenia Syndrome Virus. J Virol 2023; 97:e0001523. [PMID: 36794941 PMCID: PMC10062178 DOI: 10.1128/jvi.00015-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/22/2023] [Indexed: 02/17/2023] Open
Abstract
Negative-strand RNA viruses (NSVs) represent one of the most threatening groups of emerging viruses globally. Severe fever with thrombocytopenia syndrome virus (SFTSV) is a highly pathogenic emerging virus that was initially reported in 2011 from China. Currently, no licensed vaccines or therapeutic agents have been approved for use against SFTSV. Here, L-type calcium channel blockers obtained from a U.S. Food and Drug Administration (FDA)-approved compound library were identified as effective anti-SFTSV compounds. Manidipine, a representative L-type calcium channel blocker, restricted SFTSV genome replication and exhibited inhibitory effects against other NSVs. The result from the immunofluorescent assay suggested that manidipine inhibited SFTSV N-induced inclusion body formation, which is believed to be important for the virus genome replication. We have shown that calcium possesses at least two different roles in regulating SFTSV genome replication. Inhibition of calcineurin, the activation of which is triggered by calcium influx, using FK506 or cyclosporine was shown to reduce SFTSV production, suggesting the important role of calcium signaling on SFTSV genome replication. In addition, we showed that globular actin, the conversion of which is facilitated by calcium from filamentous actin (actin depolymerization), supports SFTSV genome replication. We also observed an increased survival rate and a reduction of viral load in the spleen in a lethal mouse model of SFTSV infections after manidipine treatment. Overall, these results provide information regarding the importance of calcium for NSV replication and may thereby contribute to the development of broad-scale protective therapies against pathogenic NSVs. IMPORTANCE SFTS is an emerging infectious disease and has a high mortality rate of up to 30%. There are no licensed vaccines or antivirals against SFTS. In this article, L-type calcium channel blockers were identified as anti-SFTSV compounds through an FDA-approved compound library screen. Our results showed the involvement of L-type calcium channel as a common host factor for several different families of NSVs. The formation of an inclusion body, which is induced by SFTSV N, was inhibited by manidipine. Further experiments showed that SFTSV replication required the activation of calcineurin, a downstream effecter of the calcium channel. In addition, we identified that globular actin, the conversion of which is facilitated by calcium from filamentous actin, supports SFTSV genome replication. We also observed an increased survival rate in a lethal mouse model of SFTSV infection after manidipine treatment. These results facilitate both our understanding of the NSV replication mechanism and the development of novel anti-NSV treatment.
Collapse
Affiliation(s)
- Shuzo Urata
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- National Research Center for the Control and Prevention of Infectious Diseases (CCPID), Nagasaki University, Nagasaki, Japan
| | - Rokusuke Yoshikawa
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- National Research Center for the Control and Prevention of Infectious Diseases (CCPID), Nagasaki University, Nagasaki, Japan
| | - Jiro Yasuda
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- National Research Center for the Control and Prevention of Infectious Diseases (CCPID), Nagasaki University, Nagasaki, Japan
| |
Collapse
|
35
|
Luo N, Li M, Xu M, Shi C, Shi X, Ni R, Chen Y, Zheng L, Tu Y, Hu D, Yu C, Li Q, Lu Y. Research Progress of Fever with Thrombocytopenia Syndrome. INTENSIVE CARE RESEARCH 2023; 3:1-10. [PMID: 37360310 PMCID: PMC10033304 DOI: 10.1007/s44231-023-00035-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 02/20/2023] [Indexed: 03/25/2023]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a new infectious disease first discovered in Ta-pieh Mountains in central China in 2009. It is caused by a novel bunyavirus infection (SFTSV). Since the first discovery of SFTSV, there have been case reports and epidemiological studies on SFTS in several East Asian countries, such as South Korea, Japan, Vietnam and so on. With the rising incidence of SFTS and the rapid spread of the novel bunyavirus around the world, it is clear that the virus has a pandemic potential and may pose a threat to global public health in the future. Early studies have suggested that ticks are an important medium for the transmission of SFTSV to humans; in recent years, it has been reported that there is also human-to-human transmission. In endemic areas, potential hosts include a variety of livestock and wildlife. When people are infected with SFTV, the main clinical manifestations are high fever, thrombocytopenia, leukocytopenia, gastrointestinal symptoms, liver and kidney function damage, and even MODS, with a mortality rate of about 10-30%. This article reviews the latest progress of novel bunyavirus, including virus transmission vector, virus genotypic diversity and epidemiology, pathogenesis, clinical manifestation and treatment.
Collapse
Affiliation(s)
- Ning Luo
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Mengdie Li
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Ming Xu
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Chuanchuan Shi
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Xinge Shi
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Rong Ni
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Yu Chen
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Liang Zheng
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Yuling Tu
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Dan Hu
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Chunlin Yu
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Qingying Li
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| | - Yibin Lu
- General ICU, Xinyang Central Hospital, Xinyang Key Laboratory of Critical Care Medicine, Xinyang, 464000 Henan China
| |
Collapse
|
36
|
Urata S, Takouda J, Watanabe Y, Sakaguchi M, Sakurai Y, Inahashi Y, Iwatsuki M, Yasuda J, Tanaka Y, Takeda K. Identification of surfactin as an anti-severe fever with thrombocytopenia syndrome virus multi-target compound extracted from the culture broth of marine microbes. FRONTIERS IN VIROLOGY 2023. [DOI: 10.3389/fviro.2022.1064265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV) is a tick-borne virus first identified in China in 2011 and later reported in other Asian countries. Significant efforts have been made to develop anti-SFTSV compounds; however, there are no approved vaccines or antivirals against SFTSV infections. Marine organisms provide nearly unlimited biological resources to produce therapeutic drugs for the treatment and control of disease. In this study, we aimed to identify anti-SFTSV chemical compounds from the culture broth extracts of marine microbes collected from the coasts of the Nagasaki Prefecture, Japan. Of the 80 extracts, two showed an anti-SFTSV effect. One of them, which exhibited low cell toxicity, was used for further characterization. Chemical analysis combined with the anti-SFTSV effect identified surfactin as one of the main components of the selected extract. Our study showed a proof-of-concept to identify novel antiviral compounds from marine microbes against the virus of interest. Further analysis showed that surfactin affected the integrity of the virion membrane and inhibited SFTSV infection-induced membrane fusion at low pH conditions. Furthermore, surfactin inhibits the post-entry step of viral replication in the cell, which is a novel mode of antiviral action of surfactin. These results indicate that surfactin can target multiple steps of SFTSV replication in cells.
Collapse
|
37
|
Kaneko C, Mekata H, Umeki K, Sudaryatma PE, Irie T, Yamada K, Misawa N, Umekita K, Okabayashi T. Seroprevalence of severe fever with thrombocytopenia syndrome virus in medium-sized wild mammals in Miyazaki, Japan. Ticks Tick Borne Dis 2023; 14:102115. [PMID: 36577308 DOI: 10.1016/j.ttbdis.2022.102115] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/08/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a fatal emerging tick-borne zoonotic disease caused by the SFTS virus (SFTSV). SFTSV infection in humans and companion animals is a matter of concern in endemic areas. Various wild animals are involved in the transmission cycle of SFTSV with vector ticks. Because the home range of medium-sized wild mammals commonly overlaps with humans' living spheres, this study aimed to reveal the endemicity of SFTSV in such mammals. This study investigated the prevalence of antibodies against SFTSV and viral RNA in medium-sized wild mammals in Miyazaki Prefecture, Japan where human cases have been most frequently reported in Japan and performed a phylogenetic analysis to compare the detected SFTSV with those previously reported. Forty-three of 63 (68%) Japanese badgers (Meles anakuma) and 12 of 53 (23%) Japanese raccoon dogs (Nyctereutes procyonoides viverrinus) had antibodies against SFTSV. Japanese marten (n = 1), weasels (n = 4), and Japanese red fox (n = 1) were negative. Two of 63 (3%) badgers tested positive for SFTSV RNA, whereas the other species were negative. Phylogenetic analysis of the partial nucleotide sequence of SFTSV revealed that viral RNA detected from badgers exhibited 99.8% to 100% similarity to SFTSV, as previously reported in humans, cat, and ticks in the study area. This study demonstrated high seropositivity of antibodies in medium-sized wild mammals and suggested that SFTSV could be shared among these mammals, humans, and companion animals in endemic areas.
Collapse
Affiliation(s)
- Chiho Kaneko
- Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan.
| | - Hirohisa Mekata
- Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan
| | - Kazumi Umeki
- Division of Respirology, Rheumatology, Infectious Diseases and Neurology, Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan; Department of Medical Life Science, Faculty of Medical Bioscience, Kyushu University of Health and Welfare, Yoshino-cho 1714-1, Nobeoka, Miyazaki 882-8508, Japan
| | - Putu Eka Sudaryatma
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan
| | - Takao Irie
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan; Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan
| | - Kentaro Yamada
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan; Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan
| | - Naoaki Misawa
- Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan; Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan
| | - Kunihiko Umekita
- Division of Respirology, Rheumatology, Infectious Diseases and Neurology, Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan
| | - Tamaki Okabayashi
- Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, 5200 Kiyotakecho Kihara, Miyazaki 889-1692, Japan; Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan
| |
Collapse
|
38
|
The First Nationwide Surveillance of Severe Fever with Thrombocytopenia Syndrome in Ruminants and Wildlife in Taiwan. Viruses 2023; 15:v15020441. [PMID: 36851653 PMCID: PMC9965706 DOI: 10.3390/v15020441] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023] Open
Abstract
Since the first discovery of severe fever with thrombocytopenia syndrome virus (SFTSV) in China in 2009, SFTSV has rapidly spread through other Asian countries, including Japan, Korea, Vietnam and Pakistan, in chronological order. Taiwan reported its first discovery of SFTSV in sheep and humans in 2020. However, the prevalence of SFTSV in domestic and wildlife animals and the geographic distribution of the virus within the island remain unknown. A total of 1324 animal samples, including 803 domestic ruminants, 521 wildlife animals and 47 tick pools, were collected from March 2021 to December 2022 from 12 counties and one terrestrial island. The viral RNA was detected by a one-step real-time reverse transcription polymerase chain reaction (RT-PCR). Overall, 29.9% (240/803) of ruminants showed positive SFTSV RNA. Sheep had the highest viral RNA prevalence of 60% (30/50), followed by beef cattle at 28.4% (44/155), goats at 28.3% (47/166), and dairy cows at 27.5% (119/432). The bovine as a total of dairy cow and beef cattle was 27.8% (163/587). The viral RNA prevalence in ticks (predominantly Rhipicephalus microplus) was similar to those of ruminants at 27.7% (13/47), but wild animals exhibited a much lower prevalence at 1.3% (7/521). Geographically the distribution of positivity was quite even, being 33%, 29.1%, 27.5% and 37.5% for northern, central, southern and eastern Taiwan, respectively. Statistically, the positive rate of beef cattle in the central region (55.6%) and dairy cattle in the eastern region (40.6%) were significantly higher than the other regions; and the prevalence in Autumn (September-November) was significantly higher than in the other seasons (p < 0.001). The nationwide study herein revealed for the first time the wide distribution and high prevalence of SFTSV in both domestic animals and ticks in Taiwan. Considering the high mortality rate in humans, surveillance of other animal species, particularly those in close contact with humans, and instigation of protective measures for farmers, veterinarians, and especially older populations visiting or living near farms or rural areas should be prioritized.
Collapse
|
39
|
Kim SY, Seo CW, Lee HI. Severe fever with thrombocytopenia syndrome virus from ticks: a molecular epidemiological study of a patient in the Republic of Korea. EXPERIMENTAL & APPLIED ACAROLOGY 2023; 89:305-315. [PMID: 36928542 PMCID: PMC10097770 DOI: 10.1007/s10493-023-00783-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne infectious disease caused by Dabie bandavirus, commonly called SFTS virus (SFTSV). In the Republic of Korea (ROK), 1,504 cases of SFTS have been reported since the first human case was identified in 2013 until 2021. However, no case exists to provide molecular evidence between questing tick and patients with confirmed SFTS in the same living environment. In this study, we investigated the presence of ticks near the area of a patient infected with SFTSV. Ticks were collected by flagging and dry ice-baited traps at three spots in the vegetation around the patients' residence in Chuncheon City, Gangwon Province (ROK). Among the tick samples collected, the presence of SFTSV was genetically determined using reverse transcription PCR, followed by the phylogenetic analysis of the tick virus sequences and SFTSV found in the patient. In total 1,212 Haemaphysalis longicornis ticks were collected, and SFTSV was detected at a minimum infection rate of 5.3% (33 pools/618 tested ticks). The sequences of SFTSV in ticks were 99.6-100% identical with the patient's SFTSV in the M segment. To the best of our knowledge, this study is the first case to provide a molecular correlation between SFTSV in questing ticks collected from residence and patient with SFTS in the ROK. The present results provide useful information for the epidemiological investigation of patients with SFTS using ticks as vectors of SFTSV.
Collapse
Affiliation(s)
- Seong Yoon Kim
- Division of Vectors and Parasitic Diseases, Bureau of Infectious Disease Diagnosis Control, Korea Disease Control and Prevention Agency, 187 Osongsaengmyeong 2-ro, Cheongwon-gun, Cheongju-si, Chungcheongbuk-do, 363-951, Republic of Korea
| | - Choong Won Seo
- Department of Medical Laboratory Science, Dong-Eui Institute of Technology, 54 Yangji-ro, Busanjin-gu, Busan, 47230, Korea
| | - Hee Il Lee
- Division of Vectors and Parasitic Diseases, Bureau of Infectious Disease Diagnosis Control, Korea Disease Control and Prevention Agency, 187 Osongsaengmyeong 2-ro, Cheongwon-gun, Cheongju-si, Chungcheongbuk-do, 363-951, Republic of Korea.
| |
Collapse
|
40
|
Williams HM, Thorkelsson SR, Vogel D, Milewski M, Busch C, Cusack S, Grünewald K, Quemin EJ, Rosenthal M. Structural insights into viral genome replication by the severe fever with thrombocytopenia syndrome virus L protein. Nucleic Acids Res 2023; 51:1424-1442. [PMID: 36651274 PMCID: PMC9943659 DOI: 10.1093/nar/gkac1249] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/29/2022] [Accepted: 12/14/2022] [Indexed: 01/19/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV) is a phenuivirus that has rapidly become endemic in several East Asian countries. The large (L) protein of SFTSV, which includes the RNA-dependent RNA polymerase (RdRp), is responsible for catalysing viral genome replication and transcription. Here, we present 5 cryo-electron microscopy (cryo-EM) structures of the L protein in several states of the genome replication process, from pre-initiation to late-stage elongation, at a resolution of up to 2.6 Å. We identify how the L protein binds the 5' viral RNA in a hook-like conformation and show how the distal 5' and 3' RNA ends form a duplex positioning the 3' RNA terminus in the RdRp active site ready for initiation. We also observe the L protein stalled in the early and late stages of elongation with the RdRp core accommodating a 10-bp product-template duplex. This duplex ultimately splits with the template binding to a designated 3' secondary binding site. The structural data and observations are complemented by in vitro biochemical and cell-based mini-replicon assays. Altogether, our data provide novel key insights into the mechanism of viral genome replication by the SFTSV L protein and will aid drug development against segmented negative-strand RNA viruses.
Collapse
Affiliation(s)
| | | | - Dominik Vogel
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Morlin Milewski
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Carola Busch
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | | | - Kay Grünewald
- Centre for Structural Systems Biology, Leibniz Institute of Virology, Hamburg, Germany,University of Hamburg, Hamburg, Germany
| | - Emmanuelle R J Quemin
- Centre for Structural Systems Biology, Leibniz Institute of Virology, Hamburg, Germany
| | - Maria Rosenthal
- To whom correspondence should be addressed. Tel: +49 40 285380 930;
| |
Collapse
|
41
|
Matsuu A, Hatai H, Hifumi T, Hamakubo E, Take M, Tanaka T, Momoi Y, Endo Y, Koyoshi A, Kamikubo Y, Kamatsuki R, Kurusu N, Tabata H, Matsuyama H, Yanaidani M, Kawabata M, Kawabata T. Clinical and Pathological Findings in Fatal Cases of Severe Fever With Thrombocytopenia Syndrome With High Viremia in Cats. Top Companion Anim Med 2023; 52:100756. [PMID: 36586577 DOI: 10.1016/j.tcam.2022.100756] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 11/09/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging zoonotic disease caused by the SFTS virus (SFTSV). SFTSV causes severe symptoms both in humans and cats. In this study, we report the clinical and pathological findings of 4 fatal cases of cats with high SFTS viremia levels. These cats showed an acute onset of fever, leukopenia, thrombocytopenia, and increased serum amyloid A and pro-inflammatory cytokine levels. A high viral copy number was detected in the blood, oral swabs, rectal swabs, conjunctiva swabs, and urine. Histopathologically, necrotizing lymphadenitis, splenitis with lymphoblastoid cell proliferation, and hemophagocytosis were observed in all 4 cats. Immunohistochemistry revealed the presence of SFTSV antigen on lymphoblastoid B cells. SFTSV-RNA was detected in systemic tissues, including the brain. The present findings provide useful information for understanding the features of fatal SFTS in cats. To elucidate the mechanisms of severe progress of SFTS cats, as well as its role as a source of human infection, further research is needed.
Collapse
Affiliation(s)
- Aya Matsuu
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan.
| | - Hitoshi Hatai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Tatsuro Hifumi
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan; Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Emu Hamakubo
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Maho Take
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Yasuyuki Momoi
- Laboratory of Veterinary Diagnostic Imaging, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan; Department of Veterinary Clinical Pathology, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Endo
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Ai Koyoshi
- Kawabata animal medical center, Kirishima, Kagoshima, Japan
| | - Yuka Kamikubo
- Kawabata animal medical center, Kirishima, Kagoshima, Japan
| | - Raye Kamatsuki
- Kawabata animal medical center, Kirishima, Kagoshima, Japan
| | - Natsuki Kurusu
- Kawabata animal medical center, Kirishima, Kagoshima, Japan
| | - Haruna Tabata
- Kawabata animal medical center, Kirishima, Kagoshima, Japan
| | | | - Mei Yanaidani
- Kawabata animal medical center, Kirishima, Kagoshima, Japan
| | | | | |
Collapse
|
42
|
Chen K, Sun H, Geng Y, Yang C, Shan C, Chen Y. Ferritin and procalcitonin serve as discriminative inflammatory biomarkers and can predict the prognosis of severe fever with thrombocytopenia syndrome in its early stages. Front Microbiol 2023; 14:1168381. [PMID: 37143532 PMCID: PMC10151901 DOI: 10.3389/fmicb.2023.1168381] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 03/24/2023] [Indexed: 05/06/2023] Open
Abstract
Introduction Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease with high mortality. The pathophysiology of SFTS remains unclear. Hence, the identification of inflammatory biomarkers for SFTS is crucial for the timely management and prevention of disease severity. Methods A total of 256 patients with SFTS were divided into a survivor group and a non-survivor group. Classical inflammatory biomarkers such as ferritin, procalcitonin (PCT), C-reactive protein (CRP), and white blood cells were investigated for their association with viral load and the clinical significance for predicting the mortality of patients with SFTS. Results Serum ferritin and PCT showed a positive association with viral load. Ferritin and PCT levels in non-survivors were significantly higher than those in survivors at 7-9 days from symptom onset. The area under the receiver operating characteristic curve (AUC) values of ferritin and PCT for predicting the fatal outcome of SFTS were 0.9057 and 0.8058, respectively. However, the CRP levels and WBC counts exhibited a weak association with viral load. The AUC value of CRP for predicting mortality was more than 0.7 at 13-15 days from symptom onset. Discussion Ferritin and PCT levels, especially ferritin, could be potential inflammatory biomarkers for predicting the prognosis of patients with SFTS in its early stages.
Collapse
Affiliation(s)
- Keping Chen
- Clinical Laboratory, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
- *Correspondence: Keping Chen,
| | - Huidi Sun
- Clinical Laboratory, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Yu Geng
- Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Chuankun Yang
- Clinical Laboratory, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Chun Shan
- Department of Infectious Diseases, Zhongda Hospital, Southeast University, Nanjing, China
| | - Yuxin Chen
- Clinical Laboratory, Nanjing Drum Tower Hospital, Nanjing University, Nanjing, China
- Yuxin Chen,
| |
Collapse
|
43
|
Dong Y, Lin SH, Jiang L, Liu H. Clinical characteristics and risk factors of 267 patients having severe fever with thrombocytopenia syndrome-new epidemiological characteristics of fever with thrombocytopenia syndrome: Epidemiological characteristics of SFTS. Medicine (Baltimore) 2022; 101:e31947. [PMID: 36550925 PMCID: PMC9771163 DOI: 10.1097/md.0000000000031947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE To analyze the epidemiological distribution, clinical characteristics, and prognostic risk factors of patients having severe fever with thrombocytopenia syndrome (SFTS). METHODS We enrolled 790 patients with SFTS divided into the ordinary group and the severe group, analyzed the clinical characteristics, and screened the risk factors of severious patients by univariate logistic regression analysis. RESULTS Most of the 790 patients (SFTS) are farmers (84.56%). The proportion of patients with fieldwork history was 72.41%, of which 21.27% had a clear history of a tick bite and 98.61% were sporadic cases. The annual peak season is from April to November. 16.33% patients were not accompanied by fever. The incidence of severe thrombocytopenia was 47.59%. They were statistically significant between the 2 groups in indicators such as age, hypertension, coronary heart disease, diabetes mellitus, bunyavirus nucleic acid load and mean platelet count (P < .05). Multivariate non conditional Logistic regression analysis showed that the risk factors of the mild patients deteriorating severe disease were age (OR = 1.985, P ≤ .003), diabetes mellitus (OR = 1.702, P ≤ .001), coronary heart disease (OR = 1.381, P ≤ .003), platelet count (OR = 2.592, P ≤ .001), viral nucleic acid loading (OR = 3.908, P ≤ .001). CONCLUSION The incidence population and seasonal distribution characteristics of patients with SFTS are obvious. The risk factors for poor prognosis of severe patients are old age, multiple basic medical histories, high viral load, a serious decrease of mean platelet count, and delay of treatment time.
Collapse
Affiliation(s)
- Yu Dong
- Department of Gastroenterology, Shandong, Provincial hospital affiliated to Shandong First Medical University, P.R.China
| | - Shao-hua Lin
- Department of Infectious Disease, Rongcheng Hospital Affiliated to Shandong First Medical University, Rongcheng, P.R.China
| | - Ling Jiang
- Department of Clinical Laboratory Center, Rongcheng Hospital Affiliated to Shandong First Medical University, Rongcheng, P.R.China
| | - Hui Liu
- Department of Gastroenterology, Shandong, Provincial hospital affiliated to Shandong University, Jinan, P.R.China
- * Correspondence: Hui Liu, Department of Gastroenterology, Shandong, Provincial hospital affiliated to Shandong University, Jinan 250021, P.R.China (e-mail: )
| |
Collapse
|
44
|
Chaudhuri D, Datta J, Majumder S, Giri K. In silico study on miRNA regulation and NSs protein interactome characterization of the SFTS virus. J Mol Graph Model 2022; 117:108291. [PMID: 35977432 DOI: 10.1016/j.jmgm.2022.108291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 01/14/2023]
Abstract
Severe fever with thrombocytopenia syndrome causing virus i.e. SFTS virus has increased in the last few years. The underlying cause and mechanism of disease progression and development of symptoms is not well known. Many viruses including Hepatitis B, Hepatitis C, HIV-1, Herpes virus, Dengue virus and many others have been seen to regulate their functions at the miRNA level. This study aimed to find out those cellular miRNAs, which can be mimicked or antagonized by the viral genome and analyze the effect of these miRNAs on various gene functions. Investigations in this study suggest a correlation between miRNA regulation with the disease symptoms and progression. By exhaustive literature survey we have tried to identify the interacting partners of the Non Structural S (NSs) protein and characterized the protein-protein interactions. The binding interface that can serve as target for therapeutic studies involving the interfacial residues was analyzed. This study would serve as an avenue to design therapeutics making use of not only protein-protein interactions but also miRNA based regulation as well.
Collapse
Affiliation(s)
| | - Joyeeta Datta
- Department of Life Sciences, Presidency University, Kolkata, India
| | | | - Kalyan Giri
- Department of Life Sciences, Presidency University, Kolkata, India.
| |
Collapse
|
45
|
Tian W, Ren X, Gao X, Zhang Y, Chen Z, Zhang W. Accuracy of reverse-transcription polymerase chain reaction and loop-mediated isothermal amplification in diagnosing severe fever with thrombocytopenia syndrome: A systematic review and meta-analysis. J Med Virol 2022; 94:5922-5932. [PMID: 35968756 PMCID: PMC9804528 DOI: 10.1002/jmv.28068] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/27/2022] [Accepted: 08/10/2022] [Indexed: 01/06/2023]
Abstract
Nucleic acid molecular diagnostic technology plays an important role in the detection of severe fever with thrombocytopenia syndrome (SFTS). However, no relevant reports have been published on the accuracy of reverse-transcription polymerase chain reaction (RT-PCR) and reverse-transcription loop-mediated isothermal amplification (RT-LAMP) in the diagnosis of SFTS. Thus, we conducted a meta-analysis and systematic review to evaluate the accuracy of the two methods. On June 19, 2022, we comprehensively searched the PubMed, Embase, Cochrane Library, Web of Science, Scoups, Ovid, Proquest, China National Knowledge Infrastructure Database, Wan Fang Data, Traditional Chinese Medicine Database (Sinomed), VIP Database, and Reading Showing Database for articles on nucleic acid diagnostic techniques, such as RT-PCR and RT-LAMP, used to diagnose SFTS. Statistical analysis was performed using STATA 14.0 and Meta-Disc 1.4. Sixteen articles involving 2942 clinical blood samples were included in the analysis. RT-PCR and RT-LAMP were used as index tests, whereas RT-PCR or other detection methods were used as reference standards. The pooled values for the sensitivity, specificity, positive and negative likelihood ratios of the RT-PCR test were 0.97 (95% confidence interval [CI]: 0.92-0.99), 1.00 (95% CI: 0.98-1.00), 483.87 (95% CI: 58.04-4033.76), and 0.03 (95% CI:0.01-0.08), respectively. Those for the RT-LAMP test were 0.95 (95% CI: 0.91-0.97), 0.99 (95% CI: 0.93-1.00), 111.18 (95% CI: 13.96-885.27), and 0.05 (95% CI: 0.03-0.09), respectively. Both RT-PCR and RT-LAMP have high diagnostic value in SFTS and can be applied in different scenarios for laboratory confirmation or on-site screening.
Collapse
Affiliation(s)
- Wen Tian
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Xingxiang Ren
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Xu Gao
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Yuanyuan Zhang
- Beijing Key Laboratory of Emerging Infectious Disease, Beijing Ditan HospitalCaptital Medical UniversityBeijingChina
| | - Zhihai Chen
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Wei Zhang
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| |
Collapse
|
46
|
Zhao C, Zhang X, Si X, Ye L, Lawrence K, Lu Y, Du C, Xu H, Yang Q, Xia Q, Yu G, Xu W, Yuan F, Hao J, Jiang JF, Zheng A. Hedgehogs as Amplifying Hosts of Severe Fever with Thrombocytopenia Syndrome Virus, China. Emerg Infect Dis 2022; 28:2491-2499. [PMID: 36417938 PMCID: PMC9707592 DOI: 10.3201/eid2812.220668] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV) is a tickborne bandavirus mainly transmitted by Haemaphysalis longicornis ticks in East Asia, mostly in rural areas. As of April 2022, the amplifying host involved in the natural transmission of SFTSV remained unidentified. Our epidemiologic field survey conducted in endemic areas in China showed that hedgehogs were widely distributed, had heavy tick infestations, and had high SFTSV seroprevalence and RNA prevalence. After experimental infection of Erinaceus amurensis and Atelerix albiventris hedgehogs with SFTSV, we detected robust but transitory viremias that lasted for 9-11 days. We completed the SFTSV transmission cycle between hedgehogs and nymph and adult H. longicornis ticks under laboratory conditions with 100% efficiency. Furthermore, naive H. longicornis ticks could be infected by SFTSV-positive ticks co-feeding on naive hedgehogs; we confirmed transstadial transmission of SFTSV. Our study suggests that the hedgehogs are a notable wildlife amplifying host of SFTSV in China.
Collapse
|
47
|
Matsuu A, Doi K, Ishijima K, Tatemoto K, Koshida Y, Yoshida A, Kiname K, Iwashita A, Hayama SI, Maeda K. Increased Risk of Infection with Severe Fever with Thrombocytopenia Virus among Animal Populations on Tsushima Island, Japan, Including an Endangered Species, Tsushima Leopard Cats. Viruses 2022; 14:v14122631. [PMID: 36560635 PMCID: PMC9781851 DOI: 10.3390/v14122631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
To investigate the seroprevalence of severe fever with thrombocytopenia syndrome (SFTS) among wild and companion animals on Tsushima Island, Japan, SFTS virus (SFTSV)-specific ELISA and virus-neutralizing tests were conducted on 50 wild boars, 71 Sika deer, 84 dogs, 323 domestic cats, and 6 Tsushima leopard cats. In total, 1 wild boar (1.8%), 2 dogs (2.4%), 7 domestic cats (2.2%), and 1 Tsushima leopard cat (16.7%) were positive for anti-SFTSV antibodies. Among the 11 positive animals, 10 were collected after 2019, and all were found on the southern part of the island. SFTSV, thus far, seems to be circulating within a limited area of Tsushima Island. To protect humans and animals, including endangered Tsushima leopard cats, from SFTSV infection, countermeasures are needed to prevent the spread of SFTSV on Tsushima Island.
Collapse
Affiliation(s)
- Aya Matsuu
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Transboundary Animal Diseases Research Center, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Kandai Doi
- Laboratory of Wildlife Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
- Department of Wildlife Biology, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba 305-8687, Japan
| | - Keita Ishijima
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kango Tatemoto
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yushi Koshida
- Conservation and Animal Welfare Trust, Tsushima, 642-2 Kamiagata, Tsushima, Nagasaki 817-1602, Japan
| | - Ayako Yoshida
- Center for Animal Disease Control, Kibana Campus, University of Miyazaki, 1-1 Gakuen-kibanadai-nishi, Miyazaki 889-2192, Japan
| | - Kohei Kiname
- Tsushima Rangers Office, Ministry of Environment, 1249 Izuhara, Tsushima, Nagasaki 817-0154, Japan
| | - Akio Iwashita
- Tsushima Rangers Office, Ministry of Environment, 1249 Izuhara, Tsushima, Nagasaki 817-0154, Japan
| | - Shin-ichi Hayama
- Laboratory of Wildlife Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
- Correspondence: (S.-i.H.); (K.M.)
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Correspondence: (S.-i.H.); (K.M.)
| |
Collapse
|
48
|
Ishijima K, Tatemoto K, Park E, Kimura M, Fujita O, Taira M, Kuroda Y, Mendoza MV, Inoue Y, Harada M, Matsuu A, Shimoda H, Kuwata R, Morikawa S, Maeda K. Lethal Disease in Dogs Naturally Infected with Severe Fever with Thrombocytopenia Syndrome Virus. Viruses 2022; 14:v14091963. [PMID: 36146769 PMCID: PMC9502089 DOI: 10.3390/v14091963] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Severe fever with the thrombocytopenia syndrome virus (SFTSV) causes fatal disease in humans, cats, and cheetahs. In this study, the information on seven dogs with SFTS was summarized. All dogs showed anorexia, high fever, leukopenia, and thrombocytopenia, two dogs showed vomiting and loose stool, and five dogs had tick parasites. All dogs also had a history of outdoor activity. The SFTSV gene was detected in all dogs. Remarkably, three dogs (43%) died. SFTSV was isolated from six dogs and the complete genomes were determined. A significant increase in anti-SFTSV-IgG antibodies was observed in two dogs after recovery, and anti-SFTSV-IgM antibodies were detected in four dogs in the acute phase. Using an ELISA cut-off value of 0.410 to discriminate between SFTSV-negative and positive dogs, the detection of anti-SFTSV-IgM antibodies was useful for the diagnosis of dogs with acute-phase SFTS. Four out of the ninety-eight SFTSV-negative dogs possessed high anti-SFTSV IgG antibody titers, indicating that some dogs can recover from SFTSV infection. In conclusion, SFTSV is lethal in some dogs, but many dogs recover from SFTSV infection.
Collapse
Affiliation(s)
- Keita Ishijima
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kango Tatemoto
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Eunsil Park
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Masanobu Kimura
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Osamu Fujita
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Masakatsu Taira
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yudai Kuroda
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Milagros Virhuez Mendoza
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yusuke Inoue
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Michiko Harada
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Aya Matsuu
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Hiroshi Shimoda
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ryusei Kuwata
- Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoinooka, Imabari 794-8555, Japan
| | - Shigeru Morikawa
- Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoinooka, Imabari 794-8555, Japan
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
- Correspondence: ; Tel.: +81-3-4582-2750
| |
Collapse
|
49
|
Susceptibility of Type I Interferon Receptor Knock-Out Mice to Heartland Bandavirus (HRTV) Infection and Efficacy of Favipiravir and Ribavirin in the Treatment of the Mice Infected with HRTV. Viruses 2022; 14:v14081668. [PMID: 36016290 PMCID: PMC9416051 DOI: 10.3390/v14081668] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/20/2022] [Accepted: 07/27/2022] [Indexed: 01/27/2023] Open
Abstract
Heartland bandavirus (HRTV) is an emerging tick-borne virus that is distributed in the United States and that causes febrile illness with thrombocytopenia and leukocytopenia. It is genetically close to Dabie bandavirus, which is well known as severe fever with thrombocytopenia syndrome (SFTS) virus (SFTSV). The mortality rate of human HRTV infection is approximately 10%; however, neither approved anti-HRTV agents nor vaccines exist. An appropriate animal model should be developed to evaluate the efficacy of antiviral agents and vaccines against HRTV. The susceptibility of IFNAR−/− mice with HRTV infection was evaluated using subcutaneous, intraperitoneal, and retro-orbital inoculation routes. IFNAR−/− mice intraperitoneally infected with HRTV showed the most severe clinical signs, and the 50% lethal dose was 3.2 × 106 TCID50. Furthermore, to evaluate the utility of a novel lethal IFNAR−/− mice model, IFNAR−/− mice were orally administered favipiravir, ribavirin, or a solvent for 5 days immediately after a lethal dose of HRTV inoculation. The survival rates of the favipiravir-, ribavirin-, and solvent-administered mice were 100, 33, and 0%, respectively. The changes in bodyweights and HRTV RNA loads in the blood of favipiravir-treated IFNAR−/− mice were the lowest among the three groups, which suggests that favipiravir is a promising drug candidate for the treatment of patients with HRTV infection.
Collapse
|
50
|
Wang T, Xu L, Zhu B, Wang J, Zheng X. Immune escape mechanisms of severe fever with thrombocytopenia syndrome virus. Front Immunol 2022; 13:937684. [PMID: 35967309 PMCID: PMC9366518 DOI: 10.3389/fimmu.2022.937684] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS), which is caused by SFTS virus (SFTSV), poses a serious threat to global public health, with high fatalities and an increasing prevalence. As effective therapies and prevention strategies are limited, there is an urgent need to elucidate the pathogenesis of SFTS. SFTSV has evolved several mechanisms to escape from host immunity. In this review, we summarize the mechanisms through which SFTSV escapes host immune responses, including the inhibition of innate immunity and evasion of adaptive immunity. Understanding the pathogenesis of SFTS will aid in the development of new strategies for the treatment of this disease.
Collapse
Affiliation(s)
- Tong Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Xu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, China
| | - Bin Zhu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, China
| | - Junzhong Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Junzhong Wang, ; Xin Zheng,
| | - Xin Zheng
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Junzhong Wang, ; Xin Zheng,
| |
Collapse
|