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Dzul-Rosado K, Panti-Balam C, Lavín-Sánchez D, Palma-Chan A, Caamal-Poot M, Achach-Medina K, Quiñones-Vega C, Lugo-Caballero C, Noh-Pech H, Tello-Martín R, López-Ávila K, Arias-León J, González-Reynoso A, Puerto-Manzano F. Clinical and laboratory features of rickettsioses in Yucatan, Mexico. Acta Trop 2024; 249:107048. [PMID: 37931342 DOI: 10.1016/j.actatropica.2023.107048] [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: 04/12/2023] [Revised: 09/05/2023] [Accepted: 10/19/2023] [Indexed: 11/08/2023]
Abstract
Rickettsia species are obligate intracellular bacteria that can cause mild to severe human disease. Based on phylogeny, clinical symptoms, and antigenic properties, rickettsiae are classified into four groups. Infections by these agents are characterized by clinical symptoms ranging from self-limited to severe and even fatal febrile illnesses, depending on the Rickettsia spp. involved, the patient's predisposition, and timely medical care. The present study aimed to characterize rickettsial diseases in Yucatan according to clinical and laboratory features appearing in medical records corresponding to 427 samples taken between 2015 and 2018. A study was conducted over the period 2015-2018 on 427 samples. Clinical and laboratory features were documented from the patients' medical records. For molecular diagnosis, blood was collected in 3.8 % sodium citrate as anticoagulant, and DNA was extracted. Single-step and nested PCR amplification was performed using genus-specific primers for the rickettsial 17kDa and ompB genes. The amplicons obtained were purified and sequenced. A total of 22.7 % (97/427) positive cases of Rickettsia spp. were identified by PCR from 14.15 % (15/106) of the municipalities in Yucatan. 75.2 % (73/97) of the cases were from the city of Merida during the autumn (September-December). The age groups with the highest frequency of confirmed cases were pediatric (5-14 years) (57.7 %) and adults (25-49 years) (42.2 %). There were six fatal cases in children, one associated with R. typhi and five with R. rickettsii. In non-fatal cases, 32.9 % (32/97) corresponded to the spotted fever group (SFG), and 60.8 % (59/97) to the typhus group (TG). Significant differences in signs, and laboratory data, were observed between the pediatric and adult populations. For the treatment of patients, oral and intravenous doxycycline was used in severe hospitalized cases. Typhus group and spotted fever group Rickettsiae are endemic pathological agents found in urban and rural areas of our region. Molecular identification allows for greater diagnostic accuracy and timely treatment and consequently a better prognosis. It is necessary to implement or reinforce measures focused on the dissemination of knowledge regarding rickettsial diseases and their prevention.
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Affiliation(s)
- Karla Dzul-Rosado
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico.
| | - Candi Panti-Balam
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
| | - Dayana Lavín-Sánchez
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
| | | | | | | | | | - Cesar Lugo-Caballero
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
| | - Henry Noh-Pech
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
| | - Raúl Tello-Martín
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
| | - Karina López-Ávila
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
| | - Juan Arias-León
- Inter-Institutional Unit of Epidemiologic and Clinical Research, Medicine Faculty, Autonomous University of Yucatan, Yucatan, Mexico
| | | | - Fernando Puerto-Manzano
- Dr. Hideyo Noguchi Regional Research Center, Emerging and Re-emerging Disease Laboratory, Avenida Itzáes, No 490 x Calle 59, Col. Centro, CP 97000, Autonomous University of Yucatan, Merida, Yucatan 97000, Mexico
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Dzul-Rosado K, Lavín-Sánchez DG, Hernández GÁ, Gómez-Carro S, Puerto-Manzano FI. Rickettsia rickettsii and Rickettsia typhi in hospitalized children diagnosed with Pediatric Multisystemic Inflammatory Syndrome in Merida, Yucatan. Braz J Infect Dis 2024; 28:103707. [PMID: 38070540 PMCID: PMC10826168 DOI: 10.1016/j.bjid.2023.103707] [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: 09/07/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 01/15/2024] Open
Abstract
Multisystem Inflammatory Syndrome in Children (MIS-C) presents with fever, fatigue, elevated inflammatory markers (acute phase reactants), and a history of exposure to SARS-CoV-2 or positive antibodies to SARS-CoV-2. As the COVID-19 pandemic unfolded, the risk of MIS-C in the pediatric population increased. However, exposure to other viruses and the presence of SARS-CoV-2 positive antibodies in children hospitalized for various pathogen-associated illnesses will also remain common and may complicate differential diagnoses with diseases endemic to the region such as rickettsial diseases. The objective was to highlight the desirability of medical personnel systematically incorporating rickettsiosis as a differential diagnosis for MIS-C when studying a child with fever, non-specific symptoms, and elevated inflammatory markers. In conclusion MIS-C should be considered in children with elevated inflammatory markers when there is a history of COVID-19 and they also meet criteria that have already been established by international agencies, such as CDC and WHO.
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Affiliation(s)
- Karla Dzul-Rosado
- Hideyo Noguchi Regional Investigation Center, Faculty of Medicine, Autonomous University of Yucatan, Mérida, México.
| | | | | | - Salvador Gómez-Carro
- Agustín O' Horan General Hospital, Department of Health, Mérida, Yucatán, México
| | - Fernando I Puerto-Manzano
- Hideyo Noguchi Regional Investigation Center, Faculty of Medicine, Autonomous University of Yucatan, Mérida, México
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Deng YP, Fu YT, Yao C, Shao R, Zhang XL, Duan DY, Liu GH. Emerging bacterial infectious diseases/pathogens vectored by human lice. Travel Med Infect Dis 2023; 55:102630. [PMID: 37567429 DOI: 10.1016/j.tmaid.2023.102630] [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: 05/12/2023] [Revised: 07/02/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
Human lice have always been a major public health concern due to their vector capacity for louse-borne infectious diseases, like trench fever, louse-borne relapsing fever, and epidemic fever, which are caused by Bartonella quintana, Borrelia recurrentis, and Rickettsia prowazekii, respectively. Those diseases are currently re-emerging in the regions of poor hygiene, social poverty, or wars with life-threatening consequences. These louse-borne diseases have also caused outbreaks among populations in jails and refugee camps. In addition, antibodies and DNAs to those pathogens have been steadily detected in homeless populations. Importantly, more bacterial pathogens have been detected in human lice, and some have been transmitted by human lice in laboratories. Here, we provide a comprehensive review and update on louse-borne infectious diseases/bacterial pathogens.
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Affiliation(s)
- Yuan-Ping Deng
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Yi-Tian Fu
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China; Department of Parasitology, Xiangya School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Chaoqun Yao
- Department of Biomedical Sciences and One Health Center for Zoonoses and Tropical Veterinary Medicine, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis.
| | - Renfu Shao
- Centre for Bioinnovation, School of Science, Technology and Engineering, University of the Sunshine Coast, Sippy Downs, Australia
| | - Xue-Ling Zhang
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - De-Yong Duan
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Guo-Hua Liu
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.
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Yen TY, Wang HC, Chang YC, Su CL, Chang SF, Shu PY, Tsai KH. Seroepidemiological Study of Spotted Fever Group Rickettsiae and Identification of a Putative New Species, Rickesttsia sp. Da-1, in Gongliao, Northeast Taiwan. Pathogens 2021; 10:pathogens10111434. [PMID: 34832589 PMCID: PMC8617620 DOI: 10.3390/pathogens10111434] [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: 08/24/2021] [Revised: 10/29/2021] [Accepted: 11/03/2021] [Indexed: 11/16/2022] Open
Abstract
Tick-borne spotted fever group (SFG) rickettsioses were neglected in Taiwan. The study reported a seroepidemiological survey of SFG rickettsiae in residents in Gongliao District, Northeast Taiwan. Blood samples were examined for antibodies against SFG rickettsiae by enzyme-linked immunosorbent assay and immunofluorescence assay. Risk factors were assessed using logistic regression. Ticks parasitizing dogs were collected within a 2 km radius from the houses of seropositive participants, and PCR was performed to detect possible tick-borne pathogens. Of 1108 participants, 75 (6.8%) had antibodies against SFG rickettsiae. Residents were more likely to be seropositive if they were older than 65 years, recruited by Dr. Enjoy’s Clinic, or resided in Jilin village. A total of 184 ticks including 5 species (Rhipicephalus sanguineus, Rhipicephalus haemaphysaloides, Dermacentor auratus, Haemaphysalis hystricis, Haemaphysalis ornithophila) were collected. Rickettsia spp. were detected in 6.5% (12/184) of ticks. Rickettsia sp. TwKM01 was found in 6 R. sanguineus and 4 R. haemaphysaloides; while Rickettsia sp. TwKM03 was identified in 1 R. sanguineus. Moreover, gene-based pairwise analysis indicated identification of a putative new species, Rickettsia sp. Da-1, in D. auratus. These findings provided evidence of SFG rickettsiae infection in ticks and suggested SFG rickettsiae exposure in the residents.
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Affiliation(s)
- Tsai-Ying Yen
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei 100025, Taiwan; (T.-Y.Y.); (H.-C.W.)
| | - Hsi-Chieh Wang
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei 100025, Taiwan; (T.-Y.Y.); (H.-C.W.)
| | - Yin-Chao Chang
- Dr. Enjoy’s Clinic, Gong-Liao District, New Taipei City 228003, Taiwan;
| | - Chien-Ling Su
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei 115210, Taiwan; (C.-L.S.); (S.-F.C.)
| | - Shu-Fen Chang
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei 115210, Taiwan; (C.-L.S.); (S.-F.C.)
| | - Pei-Yun Shu
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei 115210, Taiwan; (C.-L.S.); (S.-F.C.)
- Correspondence: (P.-Y.S.); (K.-H.T.); Tel.: +886-2-26531372 (P.-Y.S.); +886-2-33668103 (K.-H.T.)
| | - Kun-Hsien Tsai
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei 100025, Taiwan; (T.-Y.Y.); (H.-C.W.)
- Department of Public Health, College of Public Health, National Taiwan University, Taipei 100025, Taiwan
- Correspondence: (P.-Y.S.); (K.-H.T.); Tel.: +886-2-26531372 (P.-Y.S.); +886-2-33668103 (K.-H.T.)
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Bang MS, Kim CM, Pyun SH, Kim DM, Yun NR. Molecular investigation of tick-borne pathogens in ticks removed from tick-bitten humans in the southwestern region of the Republic of Korea. PLoS One 2021; 16:e0252992. [PMID: 34129613 PMCID: PMC8205137 DOI: 10.1371/journal.pone.0252992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 05/26/2021] [Indexed: 11/19/2022] Open
Abstract
In this study, we investigated the presence of tick-borne pathogens in ticks removed from tick-bitten humans in the southwestern provinces of the Republic of Korea (ROK). We identified 33 ticks from three tick species, namely Amblyomma testudinarium (60.6%), Haemaphysalis longicornis (27.3%), and Ixodes nipponensis (12.1%) in order of occurrence via morphology and 16S rDNA-targeting polymerase chain reaction (PCR). Tick-borne pathogens were detected in 16 ticks using pathogen-specific PCR. From the results, 12 ticks (36.4%) tested positive for spotted fever group (SFG) Rickettsia: Rickettsia monacensis (1/12), R. tamurae (8/12), and Candidatus Rickettsia jingxinensis (3/12). Three ticks (9.1%) were positive for Anaplasma phagocytophilum. In addition, three ticks (9.1%) tested positive for Babesia gibsoni (1/3) and B. microti (2/3). In conclusion, we identified three tick species; the most common species was A. testudinarium, followed by H. longicornis and I. nipponensis. SFG Rickettsia, A. phagocytophilum, and Babesia spp. were the most frequently detected pathogens in ticks removed from tick-bitten humans. To our knowledge, this is the first report of R. tamurae and Ca. R. jingxinensis detection in Korea. The present results will contribute to the understanding of tick-borne infections in animals and humans in the ROK.
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Affiliation(s)
- Mi Seon Bang
- Department of Medical Science, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Choon-Mee Kim
- Premedical Science, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Sang-Hyun Pyun
- Graduate School of Chosun University, Gwangju, Republic of Korea
| | - Dong-Min Kim
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
- * E-mail:
| | - Na Ra Yun
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
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Kim HC, Jiang J, Hang J, Kim SY, Yun SM, Park CU, Kim M, Chong ST, Farris CM, Richards AL, Klein TA. Detection of Rickettsia lusitaniae Among Ornithodoros sawaii Soft Ticks Collected From Japanese Murrelet Seabird Nest Material From Gugul Island, Republic of Korea. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:1376-1383. [PMID: 33615347 DOI: 10.1093/jme/tjab005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Indexed: 06/12/2023]
Abstract
In a follow-up to the investigations of soft ticks identified from seabird nest soil and litter collected from coastal islands of the Republic of Korea (ROK), Ornithodoros sawaii and Ornithodoros capensis were assessed for the presence and identification of rickettsiae. Ticks collected from samples of 50-100 g of nest litter and soil from seabird nests were identified individually by morphological techniques, and species confirmed by sequencing of the mt-rrs gene. Subsequently, tick DNA preparations were screened for the presence of rickettsiae using a genus-specific nested PCR (nPCR) assay targeting the 17 kDa antigen gene. The amplicons from the 17 kDa assay and two additional nPCR assays targeting the gltA and ompB gene fragments were sequenced and used to identify the rickettsiae. A total of 134 soft ticks belonging to two species, O. sawaii Kitaoka & Suzuki 1973 (n = 125) and O. capensis Neumann 1901 (n = 9), were collected. Rickettsia lusitaniae DNA was detected and identified among O. sawaii ticks (n = 11, 8.8%) collected from nest litter and soil of the Japanese murrelet (Synthliboramphus wumizusume Temminck 1836) at Gugul Island along the western coastal area of the ROK. This study confirmed for the first time the presence of R. lusitaniae associated with O. sawaii collected from migratory seabird nests in the ROK.
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Affiliation(s)
- Heung-Chul Kim
- Force Health Protection & Preventive Medicine, US Army Medical Activity-Korea, Unit #15281, APO AP, USA
| | - Ju Jiang
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA
| | - Jun Hang
- Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD, USA
| | - Su Yeon Kim
- Pathogen Resource Management TF, National Research Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju-si, Chungbuk Province, Republic of Korea
| | - Seok-Min Yun
- Division of Arboviruses, National Institute of Health, Korea Centers for Diseases Control and Prevention, Cheongju-si, Chungbuk Province, Republic of Korea
| | - Chang-Uk Park
- Migratory Birds Research Center, Korea National Park Research Institute, Korea National Park Service, Shinan-gun, Jeonnam Province, Republic of Korea
| | - Miran Kim
- Migratory Birds Research Center, Korea National Park Research Institute, Korea National Park Service, Shinan-gun, Jeonnam Province, Republic of Korea
| | - Sung-Tae Chong
- Force Health Protection & Preventive Medicine, US Army Medical Activity-Korea, Unit #15281, APO AP, USA
| | - Christina M Farris
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD, USA
| | - Allen L Richards
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Terry A Klein
- Force Health Protection & Preventive Medicine, US Army Medical Activity-Korea, Unit #15281, APO AP, USA
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Um J, Nam Y, Lim JN, Kim M, An Y, Hwang SH, Park JS. Seroprevalence of scrub typhus, murine typhus and spotted fever groups in North Korean refugees. Int J Infect Dis 2021; 106:23-28. [DOI: 10.1016/j.ijid.2021.02.111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/31/2022] Open
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Tariq M, Seo JW, Kim DY, Panchali MJL, Yun NR, Lee YM, Kim CM, Kim DM. First report of the molecular detection of human pathogen Rickettsia raoultii in ticks from the Republic of Korea. Parasit Vectors 2021; 14:191. [PMID: 33827669 PMCID: PMC8025568 DOI: 10.1186/s13071-021-04695-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 03/20/2021] [Indexed: 12/02/2022] Open
Abstract
Background Rickettsial diseases associated with the spotted fever group constitute a growing number of newly identified Rickettsia pathogens and their tick vectors in various parts of the world. At least 15 distinct tick species belonging to six genera have shown the presence of Rickettsia raoultii. Herein, we report the detection of R. raoultii in ticks from the Republic of Korea (ROK). Methods Thirty-five ticks were collected from 29 patients with tick bites in Gwangju Metropolitan City, Jeollanam Province, ROK. The ticks were identified using molecular, morphological, and taxonomic characteristics. All samples were screened for presence of Rickettsia species using nested polymerase chain reactions of their outer membrane protein (ompA) and citrate synthase (gltA) genes. The amplified products were sequenced for subsequent phylogenetic analyses. Results Sequencing data showed the DNA sequences of R. raoultii in three Haemaphysalis longicornis ticks. All three tick samples were 99.4–100% similar to previously reported partial sequences of ompA of R. raoultii strains CP019435 and MF002523, which formed a single clade with the reference strains. Conclusions We provide the first description and molecular identification of R. raoultii detected in H. longicornis ticks in the ROK. This observation extends the geographical distribution of R. raoultii. Screening of human samples for this pathogen will provide information about the prevalence of rickettsial infections in this region. ![]()
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Affiliation(s)
- Misbah Tariq
- 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
| | - Da Young Kim
- 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
| | - You Mi Lee
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Choon-Mee Kim
- Department of Premedical Science, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Dong-Min Kim
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea.
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Satjanadumrong J, Robinson MT, Hughes T, Blacksell SD. Distribution and Ecological Drivers of Spotted Fever Group Rickettsia in Asia. ECOHEALTH 2019; 16:611-626. [PMID: 30993545 PMCID: PMC6910891 DOI: 10.1007/s10393-019-01409-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 05/30/2023]
Abstract
Spotted fever group and related rickettsia (SFGR) are a neglected group of pathogens that belong to the genus Rickettsia. SFGR are zoonotic and are transmitted by arthropod vectors, primarily ticks, fleas and mites to accidental hosts. These emerging and re-emerging infections are widely distributed throughout the world. Land-use change and increasing human-wildlife conflict compound the risk of SFGR infection to local people in endemic areas and travelers to these regions. In this article, we discuss the rickettsial organisms causing spotted fever and related diseases, their arthropod vectors in Asia and the impact of land-use change on their spread.
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Affiliation(s)
- Jaruwan Satjanadumrong
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithee Road, Bangkok, 10400, Thailand
| | - Matthew T Robinson
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Mahosot Hospital, Vientiane, Lao People's Democratic Republic
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, University of Oxford, Oxford, OX3 7FZ, UK
| | - Tom Hughes
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithee Road, Bangkok, 10400, Thailand
- EcoHealth Alliance, 460 West 34th Street, 17th Floor, New York, NY, USA
| | - Stuart D Blacksell
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithee Road, Bangkok, 10400, Thailand.
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Mahosot Hospital, Vientiane, Lao People's Democratic Republic.
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Churchill Hospital, University of Oxford, Oxford, OX3 7FZ, UK.
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Abstract
Spotted fever group rickettsiae (SFG) are a neglected group of bacteria, belonging to the genus Rickettsia, that represent a large number of new and emerging infectious diseases with a worldwide distribution. The diseases are zoonotic and are transmitted by arthropod vectors, mainly ticks, fleas and mites, to hosts such as wild animals. Domesticated animals and humans are accidental hosts. In Asia, local people in endemic areas as well as travellers to these regions are at high risk of infection. In this review we compare SFG molecular and serological diagnostic methods and discuss their limitations. While there is a large range of molecular diagnostics and serological assays, both approaches have limitations and a positive result is dependent on the timing of sample collection. There is an increasing need for less expensive and easy-to-use diagnostic tests. However, despite many tests being available, their lack of suitability for use in resource-limited regions is of concern, as many require technical expertise, expensive equipment and reagents. In addition, many existing diagnostic tests still require rigorous validation in the regions and populations where these tests may be used, in particular to establish coherent and worthwhile cut-offs. It is likely that the best strategy is to use a real-time quantitative polymerase chain reaction (qPCR) and immunofluorescence assay in tandem. If the specimen is collected early enough in the infection there will be no antibodies but there will be a greater chance of a PCR positive result. Conversely, when there are detectable antibodies it is less likely that there will be a positive PCR result. It is therefore extremely important that a complete medical history is provided especially the number of days of fever prior to sample collection. More effort is required to develop and validate SFG diagnostics and those of other rickettsial infections.
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Jiang J, Choi YJ, Kim J, Kim HC, Klein TA, Chong ST, Richards AL, Park HJ, Shin SH, Song D, Park KH, Jang WJ. Distribution of Rickettsia spp. in Ticks from Northwestern and Southwestern Provinces, Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2019; 57:161-166. [PMID: 31104408 PMCID: PMC6526208 DOI: 10.3347/kjp.2019.57.2.161] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 12/23/2018] [Indexed: 11/30/2022]
Abstract
This study was done to characterize distribution of Rickettsia spp. in ticks in the northwestern and southwestern provinces in the Republic of Korea. A total of 2,814 ticks were collected between May and September 2009. After pooling, 284 tick DNA samples were screened for a gene of Rickettsia-specific 17-kDa protein using nested PCR (nPCR), and produced 88 nPCR positive samples. Of these positives, 75% contained 190-kDa outer membrane protein gene (ompA), 50% 120-kDa outer membrane protein gene (ompB), and 64.7% gene D (sca4). The nPCR products of ompA, ompB, and sca4 genes revealed close relatedness to Rickettsia japonica, R. heilongjiangensis, and R. monacensis. Most Rickettsia species were detected in Haemaphysalis longicornis. This tick was found a dominant vector of rickettsiae in the study regions in the Republic of Korea.
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Affiliation(s)
- Ju Jiang
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD 20910-7500, USA
| | - Yeon-Joo Choi
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
| | - Jeoungyeon Kim
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
| | - Heung-Chul Kim
- Force Health Protection and Preventive Medicine, Medical Department Activity-Korea/65th Medical Brigade, Unit 15281, APO AP 96271-5281, USA
| | - Terry A Klein
- Force Health Protection and Preventive Medicine, Medical Department Activity-Korea/65th Medical Brigade, Unit 15281, APO AP 96271-5281, USA
| | - Sung-Tae Chong
- Force Health Protection and Preventive Medicine, Medical Department Activity-Korea/65th Medical Brigade, Unit 15281, APO AP 96271-5281, USA
| | - Allen L Richards
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD 20910-7500, USA
| | - Hye-Jin Park
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
| | - Sun-Hye Shin
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
| | - Dayoung Song
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
| | - Kyung-Hee Park
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
| | - Won-Jong Jang
- Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea.,Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea
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12
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Im JH, Baek J, Durey A, Kwon HY, Chung MH, Lee JS. Current Status of Tick-Borne Diseases in South Korea. Vector Borne Zoonotic Dis 2018; 19:225-233. [PMID: 30328790 DOI: 10.1089/vbz.2018.2298] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Bites with tick-borne pathogens can cause various bacterial, viral, or parasitic diseases in humans. Tick-transmitted diseases are known as contributing factors to the increasing incidence and burden of diseases. The present article investigated the epidemiology of tick-borne diseases in South Korea. METHODS The incidence and distribution of common tick-borne diseases in Korea (Lyme disease, Q fever, and severe fever with thrombocytopenia syndrome [SFTS]) were investigated and analyzed, using data from the Korea Centers for Disease Control and Prevention (KCDC) infectious disease reporting system. A literature review was compiled on the current status of uncommon tick-borne diseases (Rickettsia, anaplasmosis, ehrlichiosis, bartonellosis, tularemia, tick-borne encephalitis, and babesiosis). RESULTS AND CONCLUSIONS In South Korea, SFTS is an emerging disease, showing a rapid increase in reports since 2012, with high mortality. Likewise, reports of Lyme disease and Q fever cases have also been rapidly increasing during 2012-2017, although caution should be taken when interpreting these results, considering the likely influence of increased physician awareness and reporting of these diseases. Other tick-borne diseases reported in South Korea included spotted fever group rickettsiae, anaplasmosis, ehrlichiosis, tularemia, Bartonella, and babesiosis. Evidences on human infection with tick-borne encephalitis virus and Crimean-Congo hemorrhagic fever were recently unavailable, but both need constant monitoring.
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Affiliation(s)
- Jae Hyoung Im
- 1 Department of Internal Medicine and Inha University School of Medicine, Incheon, Republic of Korea
| | - JiHyeon Baek
- 1 Department of Internal Medicine and Inha University School of Medicine, Incheon, Republic of Korea
| | - Areum Durey
- 2 Department of Emergency Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Hea Yoon Kwon
- 1 Department of Internal Medicine and Inha University School of Medicine, Incheon, Republic of Korea
| | - Moon-Hyun Chung
- 3 Department of Internal Medicine, Jeju University Hospital, Jeju, Republic of Korea
| | - Jin-Soo Lee
- 1 Department of Internal Medicine and Inha University School of Medicine, Incheon, Republic of Korea
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13
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Maina AN, Klein TA, Kim HC, Chong ST, Yang Y, Mullins K, Jiang J, St. John H, Jarman RG, Hang J, Richards AL. Molecular characterization of novel mosquito-borne Rickettsia spp. from mosquitoes collected at the Demilitarized Zone of the Republic of Korea. PLoS One 2017; 12:e0188327. [PMID: 29155880 PMCID: PMC5695765 DOI: 10.1371/journal.pone.0188327] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/03/2017] [Indexed: 12/21/2022] Open
Abstract
Rickettsiae are associated with a diverse range of invertebrate hosts. Of these, mosquitoes could emerge as one of the most important vectors because of their ability to transmit significant numbers of pathogens and parasites throughout the world. Recent studies have implicated Anopheles gambiae as a potential vector of Rickettsia felis. Herein we report that a metagenome sequencing study identified rickettsial sequence reads in culicine mosquitoes from the Republic of Korea. The detected rickettsiae were characterized by a genus-specific quantitative real-time PCR assay and sequencing of rrs, gltA, 17kDa, ompB, and sca4 genes. Three novel rickettsial genotypes were detected (Rickettsia sp. A12.2646, Rickettsia sp. A12.2638 and Rickettsia sp. A12.3271), from Mansonia uniformis, Culex pipiens, and Aedes esoensis, respectively. The results underscore the need to determine the Rickettsia species diversity associated with mosquitoes, their evolution, distribution and pathogenic potential.
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Affiliation(s)
- Alice N. Maina
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, Maryland, United States of America
- * E-mail:
| | - Terry A. Klein
- 65 Medical Brigade, Medical Department Activity-Korea, Unit 15281, Seoul, South Korea
| | - Heung-Chul Kim
- 65 Medical Brigade, Medical Department Activity-Korea, Unit 15247, Seoul, South Korea
| | - Sung-Tae Chong
- 65 Medical Brigade, Medical Department Activity-Korea, Unit 15247, Seoul, South Korea
| | - Yu Yang
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Kristin Mullins
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, Maryland, United States of America
- University of Maryland, School of Medicine, Department of Pathology, Baltimore, Maryland, United States of America
| | - Ju Jiang
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, Maryland, United States of America
| | - Heidi St. John
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, Maryland, United States of America
| | - Richard G. Jarman
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Jun Hang
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Allen L. Richards
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, Maryland, United States of America
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14
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Kim YS, Choi YJ, Lee KM, Ahn KJ, Kim HC, Klein T, Jiang J, Richards A, Park KH, Jang WJ. First isolation of Rickettsia monacensis from a patient in South Korea. Microbiol Immunol 2017; 61:258-263. [PMID: 28593634 DOI: 10.1111/1348-0421.12496] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 05/20/2017] [Accepted: 06/01/2017] [Indexed: 11/28/2022]
Abstract
A Rickettsia sp. was isolated from the blood of a patient with an acute febrile illness using the shell vial technique; the isolate was named CN45Kr and was identified by molecular assay as Rickettsia monacensis, which was first recognized as a pathogen in Spain. Sequencing analysis showed that the gltA sequence of the isolate was identical to that of Rickettsia sp. IRS3. The ompA-5mp fragment sequence showed 100% identity to those of R. monacensis and Rickettsia sp. In56 and ompA-3pA In56 and 100% identity to that of Rickettsia sp. IRS3. The ompB sequence was found to have 99.9% similarity to that of R. monacensis IrR/Munich. This study confirms the pathogenicity of this agent and provides additional information about its geographic distribution.
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Affiliation(s)
- Yeon-Sook Kim
- Division of Infectious Diseases, Department of Internal Medicine, Chungnam National University School of Medicine, Munhwa-ro 282, Jung-gu, Daejeon 35015
| | - Yeon-Joo Choi
- Department of Microbiology, Konkuk University College of Medicine, Institute of Biomedical Science Building. Neungdong-ro 120, Gwangjin-gu, Seoul 05029
| | - Kyung-Min Lee
- Department of Microbiology, Konkuk University College of Medicine, Institute of Biomedical Science Building. Neungdong-ro 120, Gwangjin-gu, Seoul 05029.,International Vaccine Institute, SNU Research Park, Gwanak-ro 1, Gwanak-gu, Seoul, 151742
| | - Kyu-Joong Ahn
- Department of Dermatology, Konkuk University College of Medicine, Neungdong-ro 120-1, Gwangjin-gu, Seoul, 05029, South Korea
| | - Heung-Chul Kim
- Fifth Medical Detachment, 168th Multifunctional Medical Battalion, 65th Medical Brigade, Unit 15247, APO AP 96205-5247
| | - Terry Klein
- Force Health Protection and Preventive Medicine, 65th Medical Brigate/USAMEDDAC-K, Unit 15281, APO AP 96205-528
| | - Ju Jiang
- Department of Viral and Rickettsial Diseases, Naval Medical Research Center, Silver Spring, MD 20910, USA
| | - Allen Richards
- Department of Viral and Rickettsial Diseases, Naval Medical Research Center, Silver Spring, MD 20910, USA
| | - Kyung-Hee Park
- Department of Microbiology, Konkuk University College of Medicine, Institute of Biomedical Science Building. Neungdong-ro 120, Gwangjin-gu, Seoul 05029
| | - Won-Jong Jang
- Department of Microbiology, Konkuk University College of Medicine, Institute of Biomedical Science Building. Neungdong-ro 120, Gwangjin-gu, Seoul 05029
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15
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Noh Y, Lee YS, Kim HC, Chong ST, Klein TA, Jiang J, Richards AL, Lee HK, Kim SY. Molecular detection of Rickettsia species in ticks collected from the southwestern provinces of the Republic of Korea. Parasit Vectors 2017; 10:20. [PMID: 28069059 PMCID: PMC5223493 DOI: 10.1186/s13071-016-1955-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 12/23/2016] [Indexed: 12/19/2022] Open
Abstract
Background Rickettsiae constitute a group of arthropod-borne, Gram-negative, obligate intracellular bacteria that are the causative agents of diseases ranging from mild to life threatening that impact on medical and veterinary health worldwide. Methods A total of 6,484 ticks were collected by tick drag from June-October 2013 in the southwestern provinces of the Republic of Korea (ROK) (Jeollanam, n = 3,995; Jeollabuk, n = 680; Chungcheongnam, n = 1,478; and Chungcheongbuk, n = 331). Ticks were sorted into 311 pools according to species, collection site, and stage of development. DNA preparations of tick pools were assayed for rickettsiae by 17 kDa antigen gene and ompA nested PCR (nPCR) assays and the resulting amplicons sequenced to determine the identity and prevalence of spotted fever group rickettsiae (SFGR). Results Haemaphysalis longicornis (4,471; 52 adults, 123 nymphs and 4,296 larvae) were the most commonly collected ticks, followed by Haemaphysalis flava (1,582; 28 adults, 263 nymphs and 1,291 larvae), and Ixodes nipponensis (431; 25 adults, 5 nymphs and 401 larvae). The minimum field infection rate/100 ticks (assuming 1 positive tick/pool) was 0.93% for the 17 kDa antigen gene and 0.82% for the ompA nPCR assays. The partial 17 kDa antigen and ompA gene sequences from positive pools of H. longicornis were similar to: Rickettsia sp. HI550 (99.4–100%), Rickettsia sp. FUJ98 (99.3–100%), Rickettsia sp. HIR/D91 (99.3–100%), and R. japonica (99.7%). One sequence of the partial 17 kDa antigen gene for H. flava was similar to Rickettsia sp. 17kd-005 (99.7%), while seven sequences of the 17 kDa antigen gene obtained from I. nipponensis ticks were similar to R. monacensis IrR/Munich (98.7–100%) and Rickettsia sp. IRS3 (98.9%). Conclusions SFG rickettsiae were detected in three species of ixodid ticks collected in the southwestern provinces of the ROK during 2013. A number of rickettsiae have been recently reported from ticks in Korea, some of which were identified as medically important. Results from this study and previous reports demonstrate the need to conduct longitudinal investigations to identify tick-borne rickettsiae and better understand their geographical distributions and potential impact on medical and veterinary health, in addition to risk communication and development of rickettsial disease prevention strategies.
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Affiliation(s)
- Yoontae Noh
- Division of Zoonoses, National Institute of Health, Centers for Disease Control and Prevention, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Yeong Seon Lee
- Division of Zoonoses, National Institute of Health, Centers for Disease Control and Prevention, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Heung-Chul Kim
- 5th Medical Detachment, 168th Multifunctional Medical Battalion, 65th Medical Brigade, Unit 15247, Yongsan US Army Garrison, Seoul, APO AP 96205-5247, Republic of Korea
| | - Sung-Tae Chong
- 5th Medical Detachment, 168th Multifunctional Medical Battalion, 65th Medical Brigade, Unit 15247, Yongsan US Army Garrison, Seoul, APO AP 96205-5247, Republic of Korea
| | - Terry A Klein
- Public Health Command District-Korea, 65th Medical Brigade, Unit 15281, Yongsan US Army Garrison, Seoul, APO AP 96205-5281, Republic of Korea
| | - Ju Jiang
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD, 20910, USA
| | - Allen L Richards
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD, 20910, USA
| | - Hae Kyeong Lee
- Division of Zoonoses, National Institute of Health, Centers for Disease Control and Prevention, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Su Yeon Kim
- Division of Zoonoses, National Institute of Health, Centers for Disease Control and Prevention, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea.
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16
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Shin SH, Seo HJ, Choi YJ, Choi MK, Kim HC, Klein TA, Chong ST, Richards AL, Park KH, Jang WJ. Detection of Rickettsia monacensis from Ixodes nipponensis collected from rodents in Gyeonggi and Gangwon Provinces, Republic of Korea. EXPERIMENTAL & APPLIED ACAROLOGY 2013; 61:337-347. [PMID: 23624621 DOI: 10.1007/s10493-013-9699-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 04/17/2013] [Indexed: 06/02/2023]
Abstract
A total of 1,305 ticks were collected from wild rodents captured monthly, except July and August, during 2008 at three US-ROK operated military training sites and three US military installations in Gyeonggi and Gangwon Provinces, the Republic of Korea (ROK). Ixodes nipponensis was the most frequently collected tick (n = 1,299, 99.5 %), followed by Ixodes pomerantzevi (n = 6, 0.5 %). The ticks were pooled (1-15/sample) and tested by nested polymerase chain reaction (nPCR) for spotted fever group (SFG) rickettsiae with primer sets targeting the outer membrane protein B (ompB), citrate synthase (gltA), and 17-kDa antigen gene loci. A total of 115/197 (58.4 %) pools were positive by nPCR for the outer membrane protein ompB. Nucleotide sequence analysis of 105/115 (91.3 %) ompB targeted nPCR positive products showed a high degree of similarity to Rickettsia monacensis (99.3-100 %, n = 87) and R. japonica (99.5-100 %, n = 18). From the 87 positive samples demonstrating a high degree of similarity to R. monacensis, 15 were selected and analyzed by nPCR for gltA and the 17-kDa genes. A total of 12/15 pooled samples were positive for by nPCR for gltA, with amplicons demonstrating a high degree of similarity to R. monacensis (99.3-99.7 %). A total of 13/15 pooled samples were positive by nPCR for the 17-kDa gene, with amplicons demonstrating a high degree of similarity to R. monacensis (99.4-100 %). These findings demonstrate that R. monacensis is distributed throughout Gyeonggi and Gangwon Provinces in the ROK. Furthermore, data suggest a relative high prevalence of R. monacensis in the tick, I. nipponensis.
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Affiliation(s)
- Sun-Hye Shin
- Institute of Glocal Disease Control, Department of Microbiology, College of Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Republic of Korea
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17
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Parola P, Paddock CD, Socolovschi C, Labruna MB, Mediannikov O, Kernif T, Abdad MY, Stenos J, Bitam I, Fournier PE, Raoult D. Update on tick-borne rickettsioses around the world: a geographic approach. Clin Microbiol Rev 2013; 26:657-702. [PMID: 24092850 PMCID: PMC3811236 DOI: 10.1128/cmr.00032-13] [Citation(s) in RCA: 916] [Impact Index Per Article: 83.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group of the genus Rickettsia. These zoonoses are among the oldest known vector-borne diseases. However, in the past 25 years, the scope and importance of the recognized tick-associated rickettsial pathogens have increased dramatically, making this complex of diseases an ideal paradigm for the understanding of emerging and reemerging infections. Several species of tick-borne rickettsiae that were considered nonpathogenic for decades are now associated with human infections, and novel Rickettsia species of undetermined pathogenicity continue to be detected in or isolated from ticks around the world. This remarkable expansion of information has been driven largely by the use of molecular techniques that have facilitated the identification of novel and previously recognized rickettsiae in ticks. New approaches, such as swabbing of eschars to obtain material to be tested by PCR, have emerged in recent years and have played a role in describing emerging tick-borne rickettsioses. Here, we present the current knowledge on tick-borne rickettsiae and rickettsioses using a geographic approach toward the epidemiology of these diseases.
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Affiliation(s)
- Philippe Parola
- Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198, Inserm 1095, WHO Collaborative Center for Rickettsioses and Other Arthropod-Borne Bacterial Diseases, Faculté de Médecine, Marseille, France
| | | | - Cristina Socolovschi
- Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198, Inserm 1095, WHO Collaborative Center for Rickettsioses and Other Arthropod-Borne Bacterial Diseases, Faculté de Médecine, Marseille, France
| | - Marcelo B. Labruna
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia Universidade de São Paulo, Cidade Universitária, São Paulo, SP, Brazil
| | - Oleg Mediannikov
- Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198, Inserm 1095, WHO Collaborative Center for Rickettsioses and Other Arthropod-Borne Bacterial Diseases, Faculté de Médecine, Marseille, France
| | - Tahar Kernif
- Service d'Ecologie des Systèmes Vectoriels, Institut Pasteur d'Algérie, Algiers, Algeria
| | - Mohammad Yazid Abdad
- Division of Veterinary and Biomedical Science, Murdoch University, Australian Rickettsial Reference Laboratory, Barwon Health, Geelong, Victoria, Australia
| | - John Stenos
- Division of Veterinary and Biomedical Science, Murdoch University, Australian Rickettsial Reference Laboratory, Barwon Health, Geelong, Victoria, Australia
| | - Idir Bitam
- University of Boumerdes, Boumerdes, Algeria
| | - Pierre-Edouard Fournier
- Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198, Inserm 1095, WHO Collaborative Center for Rickettsioses and Other Arthropod-Borne Bacterial Diseases, Faculté de Médecine, Marseille, France
| | - Didier Raoult
- Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198, Inserm 1095, WHO Collaborative Center for Rickettsioses and Other Arthropod-Borne Bacterial Diseases, Faculté de Médecine, Marseille, France
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18
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O'Guinn ML, Klein TA, Lee JS, Richards AL, Kim HC, Ha SJ, Shim SH, Baek LJ, Song KJ, Chong ST, Turell MJ, Burkett DA, Schuster A, Lee IY, Yi SH, Sames WJ, Song JW. Serological surveillance of scrub typhus, murine typhus, and leptospirosis in small mammals captured at firing points 10 and 60, Gyeonggi province, Republic of Korea, 2001-2005. Vector Borne Zoonotic Dis 2010; 10:125-33. [PMID: 19402761 DOI: 10.1089/vbz.2008.0123] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Soldiers from the Republic of Korea and the United States conducting peacetime military operations at various training sites and multiple range complexes located near the demilitarized zone separating North and South Korea are exposed to rodents and their potentially disease-carrying ectoparasites. These diseases include scrub typhus, murine typhus, and leptospirosis. Many of the training sites are rural or semi-rural, surrounded or co-located with various forms of agriculture, and are infested with rodents and insectivores (as well as their ectoparasites), which are commonly found in association with unmanaged tall grasses, scrub, and crawling vegetation habitats. For 5 years, rodents and insectivores were collected seasonally (spring, summer, fall, and winter) at firing points 10 and 60 near the demilitarized zone and serologically tested for the presence of scrub typhus, murine typhus, and leptospirosis antibodies. Of the nine species of small mammals collected, Apodemus agrarius, the common striped field mouse and known reservoir of scrub typhus, was the most frequently collected (90.6%). Only four of the nine species captured, A. agrarius (60.9%), Micromys minutus (100%), Mus musculus (55.6%), and Rattus norvegicus (46.7%), were positive for scrub typhus. Of all the small mammals captured, only A. agrarius was positive for murine typhus (0.3%) and leptospirosis (1.3%). Seasonal and annual prevalence rates based on weight and sex are presented.
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Affiliation(s)
- Monica L O'Guinn
- Virology Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, USA
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19
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Zavala-Castro JE, Zavala-Velázquez JE, del Rosario García M, León JJA, Dzul-Rosado KR. A Dog Naturally Infected withRickettsia akariin Yucatan, México. Vector Borne Zoonotic Dis 2009; 9:345-7. [DOI: 10.1089/vbz.2008.0189] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jorge E. Zavala-Castro
- Facultad de Medicina, Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Universidad Autónoma de Yucatan, Mérida, Yucatan, México
| | - Jorge E. Zavala-Velázquez
- Facultad de Medicina, Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Universidad Autónoma de Yucatan, Mérida, Yucatan, México
| | - María del Rosario García
- Centro de Investigaciones Regionales “Dr. Hideyo Noguchi,” Universidad Autónoma de Yucatan, Merida, Yucatan, México
| | - Juan José Arias León
- Facultad de Medicina, Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Universidad Autónoma de Yucatan, Mérida, Yucatan, México
| | - Karla R. Dzul-Rosado
- Facultad de Medicina, Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Universidad Autónoma de Yucatan, Mérida, Yucatan, México
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20
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Do EJ, Kim JE, Park JM, Lee KM, Jung MY, Lee HJ, Cho HW, Choi YJ, Lee SH, Park KH, Jang WJ. Development of recombinant OmpA and OmpB proteins as diagnostic antigens for rickettsial disease. Microbiol Immunol 2009; 53:368-74. [DOI: 10.1111/j.1348-0421.2009.00142.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Ma JS. Japanese Spotted Fever in Korea. J Clin Microbiol 2005; 43:4306; author reply 4306-7. [PMID: 16082011 PMCID: PMC1233918 DOI: 10.1128/jcm.43.8.4306-4307.2005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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