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Zamora-Figueroa A, Rosales RE, Fernández R, Ramírez V, Bastardo M, Farías A, Vizzi E. Detection and diversity of gastrointestinal viruses in wastewater from Caracas, Venezuela, 2021-2022. Virology 2024; 589:109913. [PMID: 37924728 DOI: 10.1016/j.virol.2023.109913] [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: 06/14/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 11/06/2023]
Abstract
Gastrointestinal viruses (GIV) are an important cause of childhood morbidity and mortality, particularly in developing countries. Their epidemiological impact in Venezuela during the COVID-19 pandemic remains unclear. GIV can also be detected in domestic sewage. Ninety-one wastewater samples from urban areas of Caracas collected over 12 months and concentrated by polyethylene-glycol-precipitation, were analyzed by multiplex reverse-transcription-PCR for rotavirus/calicivirus/astrovirus and enterovirus/klassevirus/cosavirus, and monoplex-PCR for adenovirus and Aichi virus. The overall frequency of virus detection was 46.2%, fluctuating over months, and peaking in the rainy season. Adenoviruses circulated throughout the year, especially type F41, and predominated (52.7%) over caliciviruses (29.1%) that peaked in the rainy months, rotaviruses (9.1%), cosaviruses (5.5%), astroviruses and enteroviruses (1.8%). Aichi-virus and klassevirus were absent. Rotavirus G9/G12, and P[4]/P[8]/P[14] predominated. The occurrence of GIV in wastewater reflects transmission within the population of Caracas and the persistence of a potential public health risk that needs to be adequately monitored.
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Affiliation(s)
- Alejandra Zamora-Figueroa
- Laboratorio de Ecología de Microorganismos, Centro de Ecología Aplicada. Instituto de Zoología y Ecología Tropical. Universidad Central de Venezuela, Caracas, Venezuela
| | - Rita E Rosales
- Laboratorio de Biología de Virus, Centro de Microbiología y Biología Celular. Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
| | - Rixio Fernández
- Laboratorio de Biología de Virus, Centro de Microbiología y Biología Celular. Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
| | - Viviana Ramírez
- Laboratorio de Biología de Virus, Centro de Microbiología y Biología Celular. Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
| | - Marjorie Bastardo
- Laboratorio de Ecología de Microorganismos, Centro de Ecología Aplicada. Instituto de Zoología y Ecología Tropical. Universidad Central de Venezuela, Caracas, Venezuela
| | - Alba Farías
- Laboratorio de Ecología de Microorganismos, Centro de Ecología Aplicada. Instituto de Zoología y Ecología Tropical. Universidad Central de Venezuela, Caracas, Venezuela
| | - Esmeralda Vizzi
- Laboratorio de Biología de Virus, Centro de Microbiología y Biología Celular. Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela.
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Hoque SA, Saito H, Akino W, Kotaki T, Okitsu S, Onda Y, Kobayashi T, Hossian T, Khamrin P, Motomura K, Maneekarn N, Hayakawa S, Ushijima H. The Emergence and Widespread Circulation of Enteric Viruses Throughout the COVID-19 Pandemic: A Wastewater-Based Evidence. FOOD AND ENVIRONMENTAL VIROLOGY 2023; 15:342-354. [PMID: 37898959 DOI: 10.1007/s12560-023-09566-z] [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: 06/22/2023] [Accepted: 08/30/2023] [Indexed: 10/31/2023]
Abstract
Growing evidence shed light on the importance of wastewater-based epidemiology (WBE) during the pandemic, when the patients rarely visited the clinics despite the fact that the infections were still prevalent in the community as before. The abundance of infections in the community poses a constant threat of the emergence of new epidemic strains. Herein, we investigated enteric viruses in raw sewage water (SW) from Japan's Tohoku region and compared them to those from the Kansai region to better understand the circulating strains and their distribution across communities during the COVID-19 pandemic. Raw SW was collected between 2019 and 2022, concentrated by polyethylene-glycol-precipitation method, and investigated for major AGE viruses by RT-PCR. Sequence-based analyses were used to assess genotypes and evolutionary relationships. The most commonly detected enteric virus was rotavirus A (RVA) at 63.8%, followed by astrovirus (AstV) at 61.1%, norovirus (NoV) GII and adenovirus (AdV) at 33.3%, sapovirus (SV) at 25.0%, enterovirus (EV) at 19.4%, and NoV GI at 13.9%. The highest prevalence (46.0%) was found in the spring. Importantly, enteric viruses did not decline during the pandemic. Rather, several strains like NoV GII.2, DS-1-like human G3 (equine) RVA, MLB1 AstV, and different F41 HAdV emerged throughout the pandemic and spread widely over the Tohoku and Kansai regions. Tohoku's detection rate remained lower than that of the Kansai area (36 vs 58%). This study provides evidence for the emergence and spread of enteric viruses during the pandemic.
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Affiliation(s)
- Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Hiroyuki Saito
- Department of Microbiology, Akita Prefectual Research Center for Public Health and Environment, Akita, Japan
| | - Wakako Akino
- Department of Microbiology, Akita Prefectual Research Center for Public Health and Environment, Akita, Japan
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Yuko Onda
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tania Hossian
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Pattara Khamrin
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
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3
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Hoque SA, Pham NTK, Onda-Shimizu Y, Nishimura S, Sugita K, Kobayashi M, Islam MT, Okitsu S, Khamrin P, Maneekarn N, Hayakawa S, Ushijima H. Sapovirus infections in Japan before and after the emergence of the COVID-19 pandemic: An alarming update. J Med Virol 2023; 95:e29023. [PMID: 37543991 DOI: 10.1002/jmv.29023] [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: 01/17/2023] [Revised: 06/19/2023] [Accepted: 07/26/2023] [Indexed: 08/08/2023]
Abstract
An increasing trend of sapovirus (SaV) infections in Japanese children during 2009-2019, particularly after the introduction of the voluntary rotavirus (RV)-vaccination program has been observed. Herein, we investigated the epidemiological situation of SaV infections from 2019 to 2022 when people adopted a precautionary lifestyle due to the emergence of the COVID-19 pandemic, and RV vaccines had been implemented as routine vaccines. Stool samples were collected from children who attended outpatient clinics with acute gastroenteritis and analyzed by reverse transcriptase-polymerase chain reaction to determine viral etiology. Among 961 stool samples, 80 (8.3%) were positive for SaV: 2019-2020 (6.5%), 2020-2021 (0%), and 2021-2022 (12.8%). The trend of SaV infection in Japanese children yet remained upward with statistical significance (p = 0.000). The major genotype was GI.1 (75%) which caused a large outbreak in Kyoto between December 2021 and February 2022. Phylogenetic, gene sequence and deduced amino acid sequence analyses suggested that these GI.1 strains detected in the outbreak and other places during 2021-2022 or 2019-2020 remained genetically identical and widely spread. This study reveals that SaV infection is increasing among Japanese children which is a grave concern and demands immediate attention to be paid before SaV attains a serious public health problem.
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Affiliation(s)
- Sheikh Ariful Hoque
- Department of Pathology and Microbiology, Division of Microbiology, Nihon University School of Medicine, Tokyo, Japan
- Cell and Tissue Culture Research, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Ngan Thi Kim Pham
- Department of Pathology and Microbiology, Division of Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Yuko Onda-Shimizu
- Department of Pathology and Microbiology, Division of Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Shuichi Nishimura
- Cell and Tissue Culture Research, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Kumiko Sugita
- Division of Microbiology, Nihon University School of Medicine, Japanese Viral Gastritis Group, Tokyo, Japan
| | - Masaaki Kobayashi
- Division of Microbiology, Nihon University School of Medicine, Japanese Viral Gastritis Group, Tokyo, Japan
| | | | - Shoko Okitsu
- Department of Pathology and Microbiology, Division of Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Pattara Khamrin
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Thailand
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Thailand
| | - Satoshi Hayakawa
- Department of Pathology and Microbiology, Division of Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Ushijima
- Department of Pathology and Microbiology, Division of Microbiology, Nihon University School of Medicine, Tokyo, Japan
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Kim JS, Jeong HW, Park SH, Kim JA, Jin YH, Kim HS, Jung S, Lee JI, Lee JH. Genotypic shift in rotavirus associated with neonatal outbreaks in Seoul, Korea. J Clin Virol 2023; 164:105497. [PMID: 37253299 DOI: 10.1016/j.jcv.2023.105497] [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: 03/11/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/01/2023]
Abstract
BACKGROUND Rotavirus group A (RVA) is a causative agent of acute gastroenteritis among young children worldwide, despite the global expansion of rotavirus vaccination. In Korea, although the prevalence of RVA has been reduced among young children owing to vaccination, nosocomial infections still occur among neonates. OBJECTIVES The aim of this study was to investigate the molecular epidemiology of RVA strains associated with several neonatal outbreaks in Seoul from 2017 to 2020. STUDY DESIGN Clinical and environmental samples were collected and screened for the presence of RVA using ELISA and PCR targeting VP6, respectively. RVA-positive strains were genotyped via RT-PCR and subsequent sequencing of VP4 and VP7 and were phylogenetically compared with RVA strains from other countries. RESULTS During 2017-2020, a total of 15 RVA outbreaks occurred at neonatal facilities (six in hospital neonatal wards and nine in postpartum care centers) in Seoul, and only two RVA genotypes were detected: G4P[6] and G8P[6]. G8P[6] emerged in Seoul November 2018 and immediately became the predominant genotype among neonates, at least up to 2020. Phylogenetic analysis revealed that the G8P[6] genotype in this study was closely related to G8P[6] strains first identified in Korea in 2017, but differed from G8P[6] strains detected in Africa. CONCLUSIONS A novel G8P[6] genotype of RVA strains has emerged and caused outbreaks among neonates in Seoul. Continued surveillance for circulating RVA genotypes is imperative to monitor genotype changes and their potential risks to public health.
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Affiliation(s)
- Jin Seok Kim
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea.
| | - Hyo-Won Jeong
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
| | - Sook Hyun Park
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
| | - Jin-Ah Kim
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
| | - Young Hee Jin
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
| | - Hyun Soo Kim
- Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Gyeonggi-do, Republic of Korea
| | - Soyoung Jung
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
| | - Jae In Lee
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
| | - Jib-Ho Lee
- Emerging Infectious Diseases Team, Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Republic of Korea
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Hoque SA, Kotaki T, Pham NTK, Onda Y, Okitsu S, Sato S, Yuki Y, Kobayashi T, Maneekarn N, Kiyono H, Hayakawa S, Ushijima H. Genotype Diversity of Enteric Viruses in Wastewater Amid the COVID-19 Pandemic. FOOD AND ENVIRONMENTAL VIROLOGY 2023; 15:176-191. [PMID: 37058225 PMCID: PMC10103036 DOI: 10.1007/s12560-023-09553-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/15/2023] [Indexed: 06/13/2023]
Abstract
Viruses remain the leading cause of acute gastroenteritis (AGE) worldwide. Recently, we reported the abundance of AGE viruses in raw sewage water (SW) during the COVID-19 pandemic, when viral AGE patients decreased dramatically in clinics. Since clinical samples were not reflecting the actual state, it remained important to determine the circulating strains in the SW for preparedness against impending outbreaks. Raw SW was collected from a sewage treatment plant in Japan from August 2018 to March 2022, concentrated by polyethylene-glycol-precipitation method, and investigated for major gastroenteritis viruses by RT-PCR. Genotypes and evolutionary relationships were evaluated through sequence-based analyses. Major AGE viruses like rotavirus A (RVA), norovirus (NoV) GI and GII, and astrovirus (AstV) increased sharply (10-20%) in SW during the COVID-19 pandemic, though some AGE viruses like sapovirus (SV), adenovirus (AdV), and enterovirus (EV) decreased slightly (3-10%). The prevalence remained top in the winter. Importantly, several strains, including G1 and G3 of RVA, GI.1 and GII.2 of NoV, GI.1 of SV, MLB1 of AstV, and F41 of AdV, either emerged or increased amid the pandemic, suggesting that the normal phenomenon of genotype changing remained active over this time. This study crucially presents the molecular characteristics of circulating AGE viruses, explaining the importance of SW investigation during the pandemic when a clinical investigation may not produce the complete scenario.
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Affiliation(s)
- Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, 1000, Bangladesh
| | - Tomohiro Kotaki
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Ngan Thi Kim Pham
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Yuko Onda
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Shintaro Sato
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
- Department of Microbiology and Immunology, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama, 640-8156, Japan
| | - Yoshikazu Yuki
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Hiroshi Kiyono
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan
- Research Institute of Disaster Medicine, Institute for Global Prominent Research, Institute for Advanced Academic Research, Chiba University, Chiba, Japan
- CU-UCSD Center for Mucosal Immunology, Allergy and Vaccines (cMAV), Division of Gastroenterology, Department of Medicine, University of California, San Diego, USA
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 OyaguchiKamicho, Itabashi-Ku, Tokyo, 173-8610, Japan.
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Kozawa K, Higashimoto Y, Kawamura Y, Miura H, Negishi T, Hattori F, Ihira M, Komoto S, Taniguchi K, Yoshikawa T. Rotavirus genotypes and clinical outcome of natural infection based on vaccination status in the post-vaccine era. Hum Vaccin Immunother 2022; 18:2037983. [PMID: 35240934 PMCID: PMC9009920 DOI: 10.1080/21645515.2022.2037983] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Rotavirus (RV) is a leading cause of gastroenteritis in children. In Japan, Rotarix (RV1; GlaxoSmithKline), which is a monovalent vaccine derived from human RV (G1P[8]), has been introduced since November 2011, and RotaTeq (RV5; MSD) which is an pentavalent, human-bovine mono-reassortant vaccine (G1, G2, G3, G4, and P1A[8]), has been introduced since July 2012. Long-term follow-up on vaccine efficacy and RV genotypical change should be carried out in order to control RV infection. The RV gastroenteritis (RVGE) outbreak occurred during the 2018/2019 season in Aichi prefecture, Japan. Therefore, the molecular epidemiology of RV among three different groups of RVGE, which were outpatients who received RV1, those who received RV5, and those without vaccination, was explored. Clinical features of RVGE patients were compared among the three patient groups. Children less than 15 years of age with gastroenteritis who visited any of seven pediatric practices between January and June 2019 were enrolled in the study. G, P, and E genotypes were determined by direct sequencing of reverse transcription-polymerase chain reaction products amplified from stool samples. Among 110 patients, there were 27, 28, and 55 in the RV1-vaccinated, RV5-vaccinated, and unvaccinated groups, respectively. The most frequent genotype was G8P[8] (92/110 patients, 83.6%). Genotype distributions did not significantly differ among the three patient groups (P = .125). Mean Vesikari score was significantly lower among RV1-vaccinated (7.1) and RV5-vaccinated patients (6.4) than among unvaccinated patients (10.2) (P < .001). Even in RVGE patients treated in an outpatient clinic, RV vaccine reduced the severity of the disease in this cohort.
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Affiliation(s)
- Kei Kozawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Yuki Higashimoto
- Faculty of Medical Technology, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Yoshiki Kawamura
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hiroki Miura
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Takumi Negishi
- Department of Clinical Laboratory, Fujita Health University Hospital, Toyoake, Japan
| | - Fumihiko Hattori
- Department of Pediatrics, Kariya Toyota General Hospital, Kariya, Japan
| | - Masaru Ihira
- Faculty of Clinical Engineering, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Satoshi Komoto
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Koki Taniguchi
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Tetsushi Yoshikawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
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Abundance of viral gastroenteritis before and after the emergence of COVID-19: Molecular evidence on wastewater. J Infect 2022; 86:154-225. [PMID: 36402208 PMCID: PMC9671530 DOI: 10.1016/j.jinf.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/18/2022]
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Whole genome sequencing and evolutionary analysis of G8P [8] rotaviruses emerging in Japan. Virusdisease 2022; 33:215-218. [DOI: 10.1007/s13337-022-00765-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 04/03/2022] [Indexed: 10/18/2022] Open
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Hoque SA, Wakana A, Shimizu H, Takanashi S, Okitsu S, Anwar KS, Hayakawa S, Maneekarn N, Okabe N, Ushijima H. Detection of Rotavirus Strains in Freshwater Clams in Japan. FOOD AND ENVIRONMENTAL VIROLOGY 2022; 14:94-100. [PMID: 34981415 PMCID: PMC8722649 DOI: 10.1007/s12560-021-09505-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
Bivalve molluscan shellfish like clams and oysters, etc., are capable to bioaccumulate surrounding contaminants from waters into their digestive systems and posing serious threats of food poisoning. Detection of rotaviruses (RVs) in shellfish is of particular importance because RVs are prone to genome reassortment resulting in the emergence of new RV variants that may compromise vaccine safety. Herein, we have detected the wild-type RVs and Rotarix/RotaTeq vaccine strains in freshwater clams collected on the riverside, Kawasaki city, from July 2019 to January 2020 and correlated the detected genotypes with that of gastroenteritis cases of nearby clinics to understand the transmission of RVs in the environment. The wild-type RVs were detected in 62 (64.6%) out of 96 freshwater clams in every study month: July, September, November, and January that are considered as off-season for RV infections. The most frequent genotypes were G2 (42.9%), G8 (28.6%), G3 (14.3%), G1 (7.1%), and G10 (7.1%), which remained comparable with genotypic distribution found in the clinical samples over the last few years indicating that these RVs may accumulate in clams since a long time. However, G10 genotype was detected in clam but not in clinical samples suggesting the presence of asymptomatic infection or RVs could be carried out from a long distance. Importantly, vaccine strains, RotaTeq (1%) but not Rotarix (0%), were also detected in a clam. Attention must be paid to monitoring the potential transmission of wild-type and vaccine RV strains in the environment to prevent the emergence of new variants generated from genome reassortment with vaccine strains.
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Affiliation(s)
- Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Oyaguchi Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Azumi Wakana
- Kawasaki City Institute for Public Health, Kawasaki City, Kanagawa, Japan
| | - Hideaki Shimizu
- Kawasaki City Institute for Public Health, Kawasaki City, Kanagawa, Japan
| | - Sayaka Takanashi
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Shinjuku-Ku, Tokyo, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Oyaguchi Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Kazi Selim Anwar
- Ad-Din Women Medical College Hospital (AWMCH), Dhaka, Bangladesh
- Department of Public Health, Daffodil International University (DIU), Dhaka, Bangladesh
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Oyaguchi Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nobuhiko Okabe
- Kawasaki City Institute for Public Health, Kawasaki City, Kanagawa, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Oyaguchi Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
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10
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Hoque SA, Nishimura K, Thongprachum A, Khamrin P, Thi Kim Pham N, Islam MT, Khandoker N, Okitsu S, Onda-Shimizu Y, Dey SK, Maneekarn N, Kobayashi T, Hayakawa S, Ushijima H. An Increasing Trend of Human Sapovirus Infection in Japan, 2009 to 2019: An Emerging Public Health Concern. J Infect Public Health 2022; 15:315-320. [DOI: 10.1016/j.jiph.2022.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/21/2021] [Accepted: 01/27/2022] [Indexed: 11/16/2022] Open
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Abstract
BACKGROUND Rotavirus causes 215,000 deaths from severe childhood diarrhea annually. Concerns exist that a monovalent vaccine (RV1) and a pentavalent vaccine (RV5) may be less effective against rotavirus strains not contained in the vaccines. We estimated the vaccine effectiveness (VE) of RV1 and RV5 against severe rotavirus gastroenteritis caused by vaccine (homotypic) and nonvaccine (partially and fully heterotypic) strains. METHODS After conducting a systematic review, we meta-analyzed 31 case-control studies (N = 27,293) conducted between 2006 and 2020 using a random-effects regression model. RESULTS In high-income countries, RV1 VE was 10% lower against partially heterotypic (P = 0.04) and fully heterotypic (P = 0.10) compared with homotypic strains (homotypic VE: 90% [95% confidence intervals (CI): 82-94]; partially heterotypic VE: 79% [95% CI: 71-85]; fully heterotypic VE: 80% [95% CI: 65-88]). In middle-income countries, RV1 VE was 14-16% lower against partially heterotypic (P = 0.06) and fully heterotypic (P = 0.04) compared with homotypic strains (homotypic VE: 81% [95% CI: 69-88]; partially heterotypic VE: 67% [95% CI: 54-76]; fully heterotypic VE: 65% [95% CI: 51-75]). Strain-specific RV5 VE differences were less pronounced, and primarily derived from high-income countries. Limited data were available from low-income countries. CONCLUSIONS Vaccine effectiveness of RV1 and RV5 was somewhat lower against nonvaccine than vaccine strains. Ongoing surveillance is important to continue long-term monitoring for strain replacement, particularly in low-income settings where data are limited.
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12
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Amit LN, Mori D, John JL, Chin AZ, Mosiun AK, Jeffree MS, Ahmed K. Emergence of equine-like G3 strains as the dominant rotavirus among children under five with diarrhea in Sabah, Malaysia during 2018-2019. PLoS One 2021; 16:e0254784. [PMID: 34320003 PMCID: PMC8318246 DOI: 10.1371/journal.pone.0254784] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 07/03/2021] [Indexed: 12/12/2022] Open
Abstract
Rotavirus infection is a dilemma for developing countries, including Malaysia. Although commercial rotavirus vaccines are available, these are not included in Malaysia's national immunization program. A scarcity of data about rotavirus genotype distribution could be partially to blame for this policy decision, because there are no data for rotavirus genotype distribution in Malaysia over the past 20 years. From January 2018 to March 2019, we conducted a study to elucidate the rotavirus burden and genotype distribution in the Kota Kinabalu and Kunak districts of the state of Sabah. Stool specimens were collected from children under 5 years of age, and rotavirus antigen in these samples was detected using commercially available kit. Electropherotypes were determined by polyacrylamide gel electrophoresis of genomic RNA. G and P genotypes were determined by RT-PCR using type specific primers. The nucleotide sequence of the amplicons was determined by Sanger sequencing and phylogenetic analysis was performed by neighbor-joining method. Rotavirus was identified in 43 (15.1%) children with watery diarrhea. The male:female ratio (1.9:1) of the rotavirus-infected children clearly showed that it affected predominantly boys, and children 12-23 months of age. The genotypes identified were G3P[8] (74% n = 31), followed by G1P[8] (14% n = 6), G12P[6](7% n = 3), G8P[8](3% n = 1), and GxP[8] (3% n = 1). The predominant rotavirus circulating among the children was the equine-like G3P[8] (59.5% n = 25) with a short electropherotype. Eleven electropherotypes were identified among 34 strains, indicating substantial diversity among the circulating strains. The circulating genotypes were also phylogenetically diverse and related to strains from several different countries. The antigenic epitopes present on VP7 and VP4 of Sabahan G3 and equine-like G3 differed considerably from that of the RotaTeq vaccine strain. Our results also indicate that considerable genetic exchange is occurring in Sabahan strains. Sabah is home to a number of different ethnic groups, some of which culturally are in close contact with animals, which might contribute to the evolution of diverse rotavirus strains. Sabah is also a popular tourist destination, and a large number of tourists from different countries possibly contributes to the diversity of circulating rotavirus genotypes. Considering all these factors which are contributing rotavirus genotype diversity, continuous surveillance of rotavirus strains is of utmost importance to monitor the pre- and post-vaccination efficacy of rotavirus vaccines in Sabah.
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Affiliation(s)
- Lia Natasha Amit
- Faculty of Medicine and Health Sciences, Department of Pathobiology and Medical Diagnostics, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Daisuke Mori
- Faculty of Medicine and Health Sciences, Department of Pathobiology and Medical Diagnostics, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Jecelyn Leaslie John
- Faculty of Medicine and Health Sciences, Borneo Medical and Health Research Centre, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Abraham Zefong Chin
- Faculty of Medicine and Health Sciences, Department of Community and Family Medicine, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Andau Konodan Mosiun
- Kunak District Health Office, Ministry of Health Malaysia, Kunak, Sabah, Malaysia
| | - Mohammad Saffree Jeffree
- Faculty of Medicine and Health Sciences, Department of Community and Family Medicine, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Kamruddin Ahmed
- Faculty of Medicine and Health Sciences, Department of Pathobiology and Medical Diagnostics, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
- Faculty of Medicine and Health Sciences, Borneo Medical and Health Research Centre, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
- * E-mail:
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13
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Kawata K, Hoque SA, Nishimura S, Yagyu F, Islam MT, Sharmin LS, Pham NTK, Onda-Shimizu Y, Quang TD, Takanashi S, Okitsu S, Khamrin P, Maneekarn N, Hayakawa S, Ushijima H. Role of rotavirus vaccination on G9P[8] rotavirus strain during a seasonal outbreak in Japan. Hum Vaccin Immunother 2021; 17:3613-3618. [PMID: 34033735 DOI: 10.1080/21645515.2021.1925060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Although two live oral rotavirus (RV) vaccines, Rotarix and RotaTeq, play a critical role toward reducing disease severity, hospitalization, and death rate in RV infections, regular monitoring of vaccine effectiveness (VE) is yet necessary because the segmented genome structure and reassortment capability of RVs pose considerable threats toward waning VE. In this study, we examined the VE by a test-negative study design against G9P[8]I2 strain during a seasonal outbreak in February-May, 2018, in an outpatient clinic in Kyoto Prefecture, Japan. It remains important because G9P[8]I2 strain remains partially heterotypic to these vaccines and predominating in post-vaccination era. During year-long surveillance, RV infections were detected only from February to May. During this outbreak, 33 (42.3%) children out of 78 with acute gastroenteritis (AGE) remained RV-positive, of which 29 (87.8%) children were infected with G9P[8]I2. Two immunochromatographic (IC) assay kits exhibited 100% sensitivity and specificity to detect G9P[8]I2 strain. Only 23.2% children were found to be vaccinated. Yet, significant VE 69.7% (95% CI: 2.5%-90.6%) was recognized against all RV strains that increased with disease severity. Similar significant VE 71.8% (95% CI: 1%-92%) was determined against G9P[8]I2 strain. The severity score remained substantially low in vaccinated children. Our data reveal that vaccine-preventable G9P[8]I2 strain yet may cause outbreak where vaccination coverage remains low. Thus, this study emphasizes the necessity of global introduction of RV-vaccines in national immunization programs of every country.
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Affiliation(s)
- Kimiko Kawata
- Division on Nursing Sciences, Midwifery, Department of Health Sciences, Faculty of Medical Sciences, Kyushu University Faculty of Medical Sciences, Fukuoka, Japan
| | - Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.,Cell and Tissue Culture Research, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | | | - Fumihiro Yagyu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | | | | | - Ngan Thi Kim Pham
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Yuko Onda-Shimizu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Trinh Duy Quang
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Sayaka Takanashi
- Department of Developmental Medical Sciences, School of International Health, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Pattara Khamrin
- Department of Microbiology, Faculty of Medicine and Emerging and Re-emerging Diarrheal Viruses Research Center, Chiang Mai University, Chiang Mai, Thailand
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine and Emerging and Re-emerging Diarrheal Viruses Research Center, Chiang Mai University, Chiang Mai, Thailand
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
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14
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Lu Y, Xie H, Wang D, Lu J. Nosocomial infection caused by a rare G8P[8] rotavirus subtype in a pediatric unit in Guangzhou, Southern China. Hum Vaccin Immunother 2021; 17:3619-3622. [PMID: 33950783 DOI: 10.1080/21645515.2021.1920771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Ying Lu
- Department for Infectious Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China.,Institute of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Huaping Xie
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou, China.,Institute of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Dahu Wang
- Department for Infectious Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China.,Institute of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Jianyun Lu
- Department for Infectious Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China.,Institute of Public Health, Guangzhou Medical University, Guangzhou, China
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15
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Kadoya SS, Nishimura O, Kato H, Sano D. Predictive water virology using regularized regression analyses for projecting virus inactivation efficiency in ozone disinfection. WATER RESEARCH X 2021; 11:100093. [PMID: 33665597 PMCID: PMC7903012 DOI: 10.1016/j.wroa.2021.100093] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 05/26/2023]
Abstract
Wastewater reclamation and reuse have been practically applied to water-stressed regions, but waterborne pathogens remaining in insufficiently treated wastewater are of concern. Sanitation Safety Planning adopts the hazard analysis and critical control point (HACCP) approach to manage human health risks upon exposure to reclaimed wastewater. HACCP requires a predetermined reference value (critical limit: CL) at critical control points (CCPs), in which specific parameters are monitored and recorded in real time. A disinfection reactor of a wastewater treatment plant (WWTP) is regarded as a CCP, and one of the CCP parameters is the disinfection intensity (e.g., initial disinfectant concentration and contact time), which is proportional to the log reduction value (LRV) of waterborne pathogens. However, the achievable LRVs are not always stable because the disinfection intensity is affected by water quality parameters, which vary among WWTPs. In this study, we established models for projecting virus LRVs using ozone, in which water quality and operational parameters were used as explanatory variables. For the model construction, we used five machine learning algorithms and found that automatic relevance determination with interaction terms resulted in better prediction performances for norovirus and rotavirus LRVs. Poliovirus and coxsackievirus LRVs were predicted well by a Bayesian ridge with interaction terms and lasso with quadratic terms, respectively. The established models were relatively robust to predict LRV using new datasets that were out of the range of the training data used here, but it is important to collect LRV datasets further to make the models more predictable and flexible for newly obtained datasets. The modeling framework proposed here can help WWTP operators and risk assessors determine the appropriate CL to protect human health in wastewater reclamation and reuse.
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Affiliation(s)
- Syun-suke Kadoya
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
| | - Osamu Nishimura
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
| | - Hiroyuki Kato
- New Industry Creation Hatchery Center, Tohoku University, Sendai, Miyagi, Japan
| | - Daisuke Sano
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
- Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-06, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
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16
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Buchy P, Chen J, Zhang XH, Benninghoff B, Lee C, Bibera GL. A review of rotavirus vaccine use in Asia and the Pacific regions: challenges and future prospects. Expert Rev Vaccines 2021; 20:1499-1514. [PMID: 33275065 DOI: 10.1080/14760584.2020.1853532] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Rotavirus infection causes a significant proportion of diarrhea disease burden in children <5 years of age in Asia and the Pacific regions. The World Health Organization recommends that rotavirus vaccination should be included in national immunization programs to prevent rotavirus gastroenteritis (RVGE).Areas covered: A literature review was performed to identify and summarize published evidence on RVGE epidemiology and status of rotavirus vaccine use, including the impact and cost-effectiveness of rotavirus vaccination programs in Asia and the Pacific regions (49 countries) during the period 2000-2018.Expert opinion: Rotavirus vaccination programs have successfully reduced the burden of RVGE in many countries. However, such programs still do not exist in most Asia-Pacific countries, and therefore the burden of RVGE remains high in children <5 years of age. Challenges to vaccine implementation include a lack of surveillance data; safety concerns around intussusception; a general lack of awareness about RVGE disease epidemiology and vaccines among physicians, policy-makers, and parents; insufficient cost-effectiveness analyses; and potential issues with vaccine affordability including vaccination costs and lack of political will. Recommendations to overcome these challenges include developing cost-effectiveness analyses for more diverse national and regional settings, providing non-governmental support for low-income countries, and improving advocacy efforts.Plain language summaryWhat is the context?• Rotavirus (RV) infection causes acute gastroenteritis (GE) in children under 5 years of age.• Rotavirus vaccination (RVV) implementation has been slow in Asia and the Pacific (AP) regions, which could be responsible for the region falling behind in their fight against RVGE.What is new?• RVV via national immunization programs (NIPs) is available in 8/49 countries and through the private market or non-governmental support in other countries. Coverage rates vary between countries, possibly driven by the mechanism through which RVV is available.• A substantial positive impact of RVV on RVGE disease burden with a very low risk of intestinal intussusception for up to 7 days after RVV has been documented in the AP regions.• Economic evaluation studies, mainly cost-effectiveness analyses, predict a significant reduction in treatment costs related to RVGE and its complications showing that RVV is good value for money.What is the impact?• The prospect of continued safe and effective use of RVV in the AP regions is promising.• Challenges to RVV implementation include establishing evidence of burden of disease, poor awareness of rotavirus vaccines, limited evidence from cost-effectiveness analyses from several countries, issues of affordability of the vaccine and a lack of political will.• Recommendations for RVV implementation into the NIPs include conducting clinical and cost-effectiveness studies in countries where these are not available, establishing reliable surveillance mechanisms, providing non-governmental support for low-income countries and improving advocacy efforts.• Maintenance of high vaccination coverage is needed in countries that have implemented national RVV programs.Graphical abstract[Formula: see text].
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17
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Tsugawa T, Akane Y, Honjo S, Kondo K, Kawasaki Y. Rotavirus vaccination in Japan: Efficacy and safety of vaccines, changes in genotype, and surveillance efforts. J Infect Chemother 2021; 27:940-948. [PMID: 33867267 DOI: 10.1016/j.jiac.2021.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/25/2021] [Accepted: 04/02/2021] [Indexed: 10/21/2022]
Abstract
In Japan, a monovalent rotavirus vaccine (RV1) and a pentavalent rotavirus vaccine (RV5) were launched as voluntary vaccinations in November 2011 and July 2012, respectively. Rotavirus (RV) vaccine coverage in Japan increased from 30.0% in 2012 to 78.4% in 2019. The number of RV gastroenteritis hospitalizations decreased after 2014 in Japan, and is expected to decrease further following the introduction of RV vaccines into the national immunization program in October 2020. The incidence rates of intussusception (IS) among children aged <1 year were 102.8 and 94.0 per 100,000 person-years in the pre-vaccine (2007-2011) and post-vaccine (2012-September 2014) eras, respectively. IS incidence did not increase following RV vaccine introduction in Japan. The efficacy and safety of RV vaccination were both documented in Japan. To reduce the risk of IS following RV vaccination, it is important that children receive a first dose of RV vaccine at age <15 weeks, preferably at age 2 months. Some strains that have emerged since RV vaccine introduction, such as DS-1-like G1P[8], eG3, and G8P[8], have spread nationwide. These three emerging genotypes did not affect the severity of the RV infection. Continuous city-level surveillance, using analysis of all 11 RV genome segments, is necessary to elucidate the genetic characteristics of prevalent RV strains. These efforts would also clarify the influence of vaccination on genetic changes of RV strains and the emergence of new genotypes.
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Affiliation(s)
- Takeshi Tsugawa
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, 060-8543, Japan.
| | - Yusuke Akane
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, 060-8543, Japan
| | - Saho Honjo
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, 060-8543, Japan
| | - Kenji Kondo
- Department of Pediatrics, Sunagawa City Hospital, Sunagawa, 073-0196, Japan
| | - Yukihiko Kawasaki
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, 060-8543, Japan
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18
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Kim KG, Kee HY, Park HJ, Chung JK, Kim TS, Kim MJ. The Long-Term Impact of Rotavirus Vaccines in Korea, 2008-2020; Emergence of G8P[8] Strain. Vaccines (Basel) 2021; 9:406. [PMID: 33923945 PMCID: PMC8073504 DOI: 10.3390/vaccines9040406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 12/19/2022] Open
Abstract
This study evaluated the long-term impact of rotavirus vaccination on prevalence, seasonality, and genotype distribution in Gwangju, Korea for 13 seasons. Rotavirus was identified using ELISA and then sequenced for G and P genotypes by Reverse Transcription Polymerase Chain Reactions for diarrhoeagenic patient specimens from local hospitals between January 2008 and August2020. Of 26,902 fecal samples, 2919 samples (10.9%) were ELISA positive. The prevalence declined from 16.3% in pre-vaccine era to 5.4% in post-vaccine era. In the pre-vaccine period, G1P[8] was the most common genotype, followed by G2P[4], G3P[8], and G9P[8], etc. In the transitional period, the proportion of G2P[4] became the dominant genotype and G1P[8] was still commonly identified. In contrast, the novel genotype G8P[8] was predominant in the post-vaccine period. Meanwhile, G2P[4] and G8P[8] were major genotypes in both Rotarix and RotaTeq groups. The substantial decline of G1P[8] prevalence, reemergence of G1P[8], G3P[8], and G2P[4] rotavirus strains, and surge of the rare G8P[8] after vaccine introduction were interesting points to note. The continuous surveillance on the genotypes of RV will be needed to understand rotavirus epidemiology and their evolutionary patterns, as caution is required when interpreting temporal changes in RV genotype dynamic.
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Affiliation(s)
| | | | | | | | | | - Min Ji Kim
- Health and Environment Research Institute of Gwangju, Gwangju 61954, Korea; (K.g.K.); (H.-y.K.); (H.j.P.); (J.K.C.); (T.s.K.)
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19
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Pham NTK, Thongprachum A, Shimizu Y, Shiota I, Hoque SA, Khamrin P, Takano C, Trinh QD, Okitsu S, Komine-Aizawa S, Shimizu H, Maneekarn N, Hayakawa S, Ushijima H. Genetic diversity of Parechovirus A in infants and children with acute gastroenteritis in Japan during 2016-2018. INFECTION GENETICS AND EVOLUTION 2021; 90:104776. [PMID: 33621710 DOI: 10.1016/j.meegid.2021.104776] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 02/01/2021] [Accepted: 02/16/2021] [Indexed: 02/08/2023]
Abstract
Parechovirus A (PeV-A), previously known as human parechovirus, is a common pathogen in children that can cause respiratory and gastrointestinal diseases as well as severe neurological disease. Take advantage of our previous findings on the genetic diversity of PeV-A circulating in Japanese children with acute gastroenteritis (AGE), this study was conducted to investigate the genetic diversity of PeV-A isolated from children with AGE in Japan as well as their clinical symptoms. Of 1070 stool samples collected from Japanese infants and children with AGE during the 2-year period from July 2016 to June 2018, 76 were positive for PeV-A by multiplex reverse transcriptase-polymerase chain reaction (RT-PCR) and were subjected to genotyping based on viral protein 1 (VP1) sequences. Five different PeV-A genotypes including PeV-A1B, -A2, -A3, -A4, and -A6 were detected with predominant of PeV-A1 clade B genotype. This study revealed a high genetic diversity of PeV-A circulating in Japanese infants and children with AGE and the PeV-A2, a rare genotype, was detected for the first time in Japan in patients with AGE. The clinical symptoms observed in these patients included diarrhea, vomiting, fever, cough, rhinorrhea, and dehydration.
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Affiliation(s)
- Ngan Thi Kim Pham
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.
| | | | - Yuko Shimizu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Itoe Shiota
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Sheikh Ariful Hoque
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Pattara Khamrin
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Thailand
| | - Chika Takano
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Quang Duy Trinh
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Department of Developmental Medical Sciences, School of International Health, School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shihoko Komine-Aizawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroyuki Shimizu
- Department of Virology II, National Institute of Infectious Disease, Tokyo, Japan
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Thailand
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Department of Developmental Medical Sciences, School of International Health, School of Medicine, The University of Tokyo, Tokyo, Japan.
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20
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Akane Y, Tsugawa T, Fujii Y, Honjo S, Kondo K, Nakata S, Fujibayashi S, Ohara T, Mori T, Higashidate Y, Nagai K, Kikuchi M, Sato T, Kato S, Tahara Y, Kubo N, Katayama K, Kimura H, Tsutsumi H, Kawasaki Y. Molecular and clinical characterization of the equine-like G3 rotavirus that caused the first outbreak in Japan, 2016. J Gen Virol 2021; 102. [PMID: 33587029 DOI: 10.1099/jgv.0.001548] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Since 2013, equine-like G3 rotavirus (eG3) strains have been detected throughout the world, including in Japan, and the strains were found to be dominant in some countries. In 2016, the first eG3 outbreak in Japan occurred in Tomakomai, Hokkaido prefecture, and the strains became dominant in other Hokkaido areas the following year. There were no significant differences in the clinical characteristics of eG3 and non-eG3 rotavirus infections. The eG3 strains detected in Hokkaido across 2 years from 2016 to 2017 had DS-1-like constellations (i.e. G3-P[8]-I2-R2-C2-M2-A2-N2-T2-E2-H2), and the genes were highly conserved (97.5-100 %). One strain, designated as To16-12 was selected as the representative strain for these strains, and all 11 genes of this strain (To16-12) exhibited the closest identity to one foreign eG3 strain (STM050) seen in Indonesia in 2015 and two eG3 strains (IS1090 and MI1125) in another Japanese prefecture in 2016, suggesting that this strain might be introduced into Japan from Indonesia. Sequence analyses of VP7 genes from animal and human G3 strains found worldwide did not identify any with close identity (>92 %) to eG3 strains, including equine RV Erv105. Analysis of another ten genes indicated that the eG3 strain had low similarity to G2P[4] strains, which are considered traditional DS-1-like strains, but high similarity to DS-1-like G1P[8] strains, which first appeared in Asia in 2012. These data suggest that eG3 strains were recently generated in Asia as mono-reassortant strain between DS-1-like G1P[8] strains and unspecified animal G3 strains. Our results indicate that rotavirus surveillance in the postvaccine era requires whole-genome analyses.
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Affiliation(s)
- Yusuke Akane
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takeshi Tsugawa
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yoshiki Fujii
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Saho Honjo
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kenji Kondo
- Department of Pediatrics, Sunagawa City Hospital, Sunagawa, Japan
| | - Shuji Nakata
- Department of Pediatrics, Nakata Pediatric Clinic, Sapporo, Japan
| | | | - Toshio Ohara
- Department of Pediatrics, Tomakomai City Hospital, Tomakomai, Japan
| | - Toshihiko Mori
- Department of Pediatrics, NTT East Sapporo Hospital, Sapporo, Japan
| | - Yoshihito Higashidate
- Department of Pediatrics, Japan Community Health Care Organization (JCHO) Sapporo Hokushin Hospital, Sapporo, Japan
| | - Kazushige Nagai
- Department of Pediatrics, Takikawa Municipal Hospital, Takikawa, Japan
| | | | - Toshiya Sato
- Department of Pediatrics, Iwamizawa Municipal General Hospital, Iwamizawa, Japan
| | - Shinsuke Kato
- Department of Pediatrics, Rumoi City Hospital, Rumoi, Japan
| | - Yasuo Tahara
- Department of Pediatrics, Steel Memorial Muroran Hospital, Muroran, Japan
| | - Noriaki Kubo
- Department of Pediatrics, Japanese Red Cross Urakawa Hospital, Urakawa, Japan
| | - Kazuhiko Katayama
- Laboratory of Viral Infection I, Department of Infection Control and Immunology, Ōmura Satoshi Memorial Institute & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.,Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hirokazu Kimura
- Graduate School of Health Science, Gunma Paz University, Gunma, Japan.,Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroyuki Tsutsumi
- Present address: Midorinosato, Saiseikai Otaru Hospital, Otaru, Japan.,Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yukihiko Kawasaki
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
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21
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Reverse Genetics Approach for Developing Rotavirus Vaccine Candidates Carrying VP4 and VP7 Genes Cloned from Clinical Isolates of Human Rotavirus. J Virol 2020; 95:JVI.01374-20. [PMID: 33087468 DOI: 10.1128/jvi.01374-20] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/15/2020] [Indexed: 12/21/2022] Open
Abstract
Species A rotaviruses (RVs) are a leading cause of severe acute gastroenteritis in infants and children younger than 5 years. Currently available RV vaccines were adapted from wild-type RV strains by serial passage of cultured cells or by reassortment between human and animal RV strains. These traditional methods require large-scale screening and genotyping to obtain vaccine candidates. Reverse genetics is a tractable, rapid, and reproducible approach to generating recombinant RV vaccine candidates carrying any VP4 and VP7 genes that provide selected antigenicity. Here, we developed a vaccine platform by generating recombinant RVs carrying VP4 (P[4] and P[8]), VP7 (G1, G2, G3, G8, and G9), and/or VP6 genes cloned from human RV clinical samples using the simian RV SA11 strain (G3P[2]) as a backbone. Neutralization assays using monoclonal antibodies and murine antisera revealed that recombinant VP4 and VP7 monoreassortant viruses exhibited altered antigenicity. However, replication of VP4 monoreassortant viruses was severely impaired. Generation of recombinant RVs harboring a chimeric VP4 protein for SA11 and human RV gene components revealed that the VP8* fragment was responsible for efficient infectivity of recombinant RVs. Although this system must be improved because the yield of vaccine viruses directly affects vaccine manufacturing costs, reverse genetics requires less time than traditional methods and enables rapid production of safe and effective vaccine candidates.IMPORTANCE Although vaccines have reduced global RV-associated hospitalization and mortality over the past decade, the multisegmented genome of RVs allows reassortment of VP4 and VP7 genes from different RV species and strains. The evolutionary dynamics of novel RV genotypes and their constellations have led to great genomic and antigenic diversity. The reverse genetics system is a powerful tool for manipulating RV genes, thereby controlling viral antigenicity, growth capacity, and pathogenicity. Here, we generated recombinant simian RVs (strain SA11) carrying heterologous VP4 and VP7 genes cloned from clinical isolates and showed that VP4- or VP7-substituted chimeric viruses can be used for antigenic characterization of RV outer capsid proteins and as improved seed viruses for vaccine production.
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22
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Kim JH, Yi DY, Lim I, Ward AC, Kim W. Detection of an unusual G8P[8] rotavirus in a Rotarix-vaccinated child with acute gastroenteritis using Nanopore MinION sequencing: A case report. Medicine (Baltimore) 2020; 99:e22641. [PMID: 33019489 PMCID: PMC7535698 DOI: 10.1097/md.0000000000022641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
RATIONALE Rotavirus is routinely diagnosed by the detection of antigens or the viral genome. However, these tests have limitations, in that they do not detect all rotavirus strains. PATIENT CONCERNS We present a case of a 27-month-old girl who was hospitalized for 4 days with severe gastroenteritis, including high fever, vomiting, diarrhea, mild dehydration, and periumbilical pain. Notably, the patient previously received the Rotarix vaccine. DIAGNOSES The laboratory tests were negative for rotavirus, astrovirus, adenovirus, and norovirus as well as common diarrhea-causing bacteria. Human-bovine recombinant rotavirus was detected by MinION sequencing. INTERVENTIONS To investigate the cause agents from the unexplained severe gastroenteritis infant, the stool sample was prepared by random amplification for Nanopore MinION sequencing. OUTCOMES Treatment through the administration of ORS solution and galtase powder with probiotics was successful after the diagnosis of unusual rotavirus infection. LESSONS This case report is the first detection of an unusual human-bovine recombinant rotavirus in an idiopathic gastroenteritis using Nanopore MinION sequencing.
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Affiliation(s)
| | - Dae Yong Yi
- Department of Pediatrics, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Inseok Lim
- Department of Pediatrics, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Alan C. Ward
- School of Biology, Newcastle University, Newcastle upon Tyne, UK
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23
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Donato CM, Roczo-Farkas S, Kirkwood CD, Barnes GL, Bines JE. Rotavirus disease and genotype diversity in older children and adults in Australia. J Infect Dis 2020; 225:2116-2126. [PMID: 32692812 PMCID: PMC9200153 DOI: 10.1093/infdis/jiaa430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/13/2020] [Indexed: 11/14/2022] Open
Abstract
Background Rotavirus is a major cause of gastroenteritis in children <5 years of age. The disease burden in older children, adults, and the elderly is underappreciated. This study describes rotavirus disease and genotypic diversity in the Australian population comprising children ≥5 years of age and adults. Methods Rotavirus positive fecal samples were collected from laboratories Australia-wide participating in the Australian Rotavirus Surveillance Program between 2010 and 2018. Rotavirus samples were genotyped using a heminested multiplex reverse-transcription polymerase chain reaction. Notification data from the National Notifiable Diseases Surveillance System were also analyzed. Results Rotavirus disease was highest in children aged 5–9 years and adults ≥85 years. G2P[4] was the dominant genotype in the population ≥5 years of age. Genotype distribution fluctuated annually and genotypic diversity varied among different age groups. Geographical differences in genotype distribution were observed based on the rotavirus vaccine administered to infants <1 year of age. Conclusions This study revealed a substantial burden of rotavirus disease in the population ≥5 years of age, particularly in children 5–9 years and the elderly. This study highlights the continued need for rotavirus surveillance across the population, despite the implementation of efficacious vaccines.
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Affiliation(s)
- Celeste M Donato
- Enteric Diseases Group, Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, The University of Melbourne, Parkville, Australia.,Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Australia
| | - Susie Roczo-Farkas
- Enteric Diseases Group, Murdoch Children's Research Institute, Parkville, Australia
| | - Carl D Kirkwood
- Enteric Diseases Group, Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, The University of Melbourne, Parkville, Australia.,Enteric and Diarrheal Diseases, Global Health, Bill and Melinda Gates Foundation, Seattle, Washington, United States of America
| | - Graeme L Barnes
- Enteric Diseases Group, Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, The University of Melbourne, Parkville, Australia.,Department of Gastroenterology and Clinical Nutrition, Royal Children's Hospital, Parkville, Australia
| | - Julie E Bines
- Enteric Diseases Group, Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, The University of Melbourne, Parkville, Australia.,Department of Gastroenterology and Clinical Nutrition, Royal Children's Hospital, Parkville, Australia
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24
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Rotavirus outbreak among adults in a university hospital in Germany. J Clin Virol 2020; 129:104532. [PMID: 32650277 DOI: 10.1016/j.jcv.2020.104532] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/23/2020] [Accepted: 07/02/2020] [Indexed: 01/28/2023]
Abstract
BACKGROUND Rotaviruses are the main cause of acute viral gastroenteritis in children under five years of age. Adults seem to be less frequently affected by rotaviruses most likely due to partial immunity resulting from prior infections. OBJECTIVES To describe a hospital-associated outbreak of rotavirus infections among adults. STUDY DESIGN Routine diagnostics and contact screening of symptomatic patients hospitalized at the university hospital of Freiburg. For rotavirus-positive patients, we performed rotavirus genotyping of all rotavirus RT-PCR positive samples and phylogenetic analysis. RESULTS Between December 2016 and April 2017 routine diagnostics showed an unexpectedly high number of rotavirus infections among adults with the exception of one pediatric case. In total, 32 temporal-associated cases were identified. Among these, two asymptomatic cases were detected. Genotyping showed that all isolates belonged to rotavirus G2P[4]. Phylogenetic analysis confirmed an outbreak. Infection prevention and control successfully contained further spread. CONCLUSIONS Infections with rotavirus are rare among adults but may spread between patients making timely recognition of rotavirus infections important for infection control. Rapid phylogenetic analysis is crucial for proactive infection control.
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Distribution of rotavirus genotypes in Japan from 2015 to 2018: Diversity in genotypes before and after introduction of rotavirus vaccines. Vaccine 2020; 38:3980-3986. [PMID: 32307276 DOI: 10.1016/j.vaccine.2020.03.061] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/18/2020] [Accepted: 03/05/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND Diversity in group A rotavirus (RVA) strains after introduction of RV-vaccines remains an emerging concern worldwide. In this study, we investigated the prevalence and distribution of RVA genotypes in Japanese children with acute gastroenteritis (AGE) from 2015 to 2018. In addition, a comparison of the genotypes in pre-vaccination (2006-2012) and post-vaccination (2012-2018) periods was conducted to understand the impact of these vaccines on genotype distribution. METHODS Fecal samples were collected regularly from outpatient clinics in six localities: Hokkaido, Tokyo, Shizuoka, Osaka, Kyoto, and Saga. RVA were screened and genotyped by RT-PCR and sequence-based genotyping. RESULTS During the period 2015-2018, RVA was detected in 307 (19.7%) samples out of 1557 specimens: 29.9% (95% CI: 25.8% to 34.3%), 17.9% (95% CI: 14.7% to 21.5%), and 13% (95% CI: 10.3% to 16.0%) were detected RVA-positive in 2015-2016, 2016-2017 and 2017-2018, respectively. The average detection of RVA in pre-vaccination (2006-2012) and post-vaccination (2012-2018) era remained almost similar (18%-20%). The G2P[4]I2 (52.1%, 95% CI: 43.5%-60.6%) remained the most common genotype in 2015-2016, whereas G8P[8]I2 (55.9%, 95% CI: 45.2%-66.2%) dominated in 2016-2017. In 2017-2018, G9P[8]I2 (42.0%, 95% CI: 30.5%-53.9%) prevailed, followed by G9P[8]I1 (23.0%, 95% CI: 14.0%-34.2%). The detection rate of some common genotypes of pre-vaccination era like G1P[8] and G3P[8] has been reduced after introduction of RV-vaccine, whereas genotypes that were sporadic before the introduction of vaccines like G2P[4], G2P[8], G9P[8] and G8P[8] were emerged/reemerged in post-vaccination period. CONCLUSIONS Our study presented the diversity in circulating RVA genotypes in Japan before and after introduction of RV-vaccines. Sudden emergence of DS-1-like (I2) unusual strains in post-vaccination era remains alarming. Continuous monitoring of RVA genotypes is therefore indispensable to refine future vaccine strategy.
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Kawata K, Hikita T, Takanashi S, Hikita H, Ogita K, Okitsu S, Hoque SA, Phan TG, Ushijima H. Diagnosis of Acute Gastroenteritis with Immunochromatography and Effectiveness of Rotavirus Vaccine in a Japanese Clinic. Access Microbiol 2019; 2:acmi000085. [PMID: 32974566 PMCID: PMC7470309 DOI: 10.1099/acmi.0.000085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 01/13/2023] Open
Abstract
Despite the well known effectiveness of two licensed live attenuated oral rotavirus (RV)-vaccines, Rotarix and RotaTeq, constant monitoring of vaccine effectiveness (VE) is essential considering the evolving power and reassortment capability of RVs. In this study, we detected RV, norovirus (NV) and adenovirus (AV) infections using immunochromatography (IC)-based kits in children with acute gastroenteritis (AGE) who attended a pediatric clinic in Kiryu city, Gunma, Japan during June, 2014-September, 2018. VEs were determined using a test-negative study design. Among 1658 AGE-children, RV, NV and AV were detected in 96 (5.8 %), 146 (8.8 %) and 46 (2.8 %) children, respectively. Interestingly, the distributions of infections were found to be associated with age and sex. Namely, RV infections were significantly higher in female (P=0.02) and in the 19-30 month age group children, while NV and AV infections predominated in the 13-24 month and 7-18 month age groups, respectively. The disease severity for RV and NV infections remained similar and significantly higher than that of AV infections. The VE of RV-vaccines was 49.8 % (95 % CI: 22.7 to 67.3 %) against all RV infections, which was increased up to 67.2 % (95 % CI: 35.3 to 83.4 %) against severe RV infections. RV-vaccinated children experienced less severe symptoms in RV-infections while non-RV AGE remained less serious for both RV-vaccinated and unvaccinated children. Finally, the prevalence of RV infection remained minimized (≤5.4 %) in this population since 2015. Thus, this study provided important information on distribution of major AGEs in young children and exhibited the effective role of RV vaccines in post-vaccine era.
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Affiliation(s)
- Kimiko Kawata
- Division on Nursing Sciences, Midwifery, Department of Health Sciences, Faculty of Medical Sciences, Kyushu University Faculty of Medical Sciences, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Toshiyuki Hikita
- Hikita Pediatric Clinic, 2-7-20 Nakamchi, Kiryu city, Gunma, 376-0035, Japan
| | - Sayaka Takanashi
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Bunkyo, Tokyo, Japan
| | - Hiroyuki Hikita
- Hikita Pediatric Clinic, 2-7-20 Nakamchi, Kiryu city, Gunma, 376-0035, Japan
| | - Kaori Ogita
- Hikita Pediatric Clinic, 2-7-20 Nakamchi, Kiryu city, Gunma, 376-0035, Japan
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiolgy, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, Japan
| | - Sheikh Ariful Hoque
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka-1000, Bangladesh
| | - Tung Gia Phan
- Division of Clinical Microbiology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiolgy, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, Japan
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27
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Hoque SA, Iizuka I, Kobayashi M, Takanashi S, Anwar KS, Islam MT, Hoque SA, Khamrin P, Okitsu S, Hayakawa S, Ushijima H. Determining effectiveness of rotavirus vaccine by immunochromatography and reverse transcriptase polymerase chain reaction: A comparison. Vaccine 2019; 37:5886-5890. [PMID: 31451325 DOI: 10.1016/j.vaccine.2019.07.091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/07/2019] [Accepted: 07/26/2019] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Because of the large animal reservoirs and reassortment capacity of rotaviruses (RVs) that pose the possibilities of waning the effectiveness of RV-vaccines, it remains essential to monitor vaccine effectiveness (VE) regularly. Although reverse transcription polymerase chain reaction (RT-PCR) remains sensitive for RV detection, physicians, especially in Japan, frequently use immunochromatography (IC)-based kits for RV diagnosis. Recently, IC is being used to calculate VE also. Herein, we investigated the validity of VEs determined by IC compared to that by RT-PCR during an outbreak in Shizuoka Prefecture, Japan. METHODS RVs in the stool or rectal swabs from children with acute gastroenteritis (AGE) were tested first by IC in the clinic and then by RT-PCR in the laboratory. A test-negative study design was used to examine VE. RESULTS Although the specificity of IC assay revealed 100%, its sensitivity remained weaker (67%) than that of RT-PCR that increased up to 88% depending on disease severity. VE assessed by IC remained stronger than that by RT-PCR: 79% (95% CI: 39-93%) by IC, and 58% (95% CI: -20% to 90%) by RT-PCR. However, VEs by IC and RT-PCR appeared almost similar in higher disease severity: 81.5% (95% CI: 40-94%) by IC and 72% (95% CI: 7-92%) by RT-PCR at severity ≥7, while 97.5% (95% CI: 77-99.7%) by IC and 92% (95% CI: 58-98%) by RT-PCR at severity ≥11. We showed that RV-vaccinated children had 80% [OR = 0.192 (95% CI: 0.052-0.709) less chance to be detected by IC. CONCLUSION Although the sensitivity and specificity of IC differ by brand type, generally, IC is not as sensitive as RT-PCR. Despite the VEs remain higher by IC, it looks comparable with that of RT-PCR in severe cases implying that VEs evaluated by IC against severe illness remain useful for VE-monitoring.
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Affiliation(s)
- Sheikh Ariful Hoque
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Itoe Iizuka
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | | | - Sayaka Takanashi
- Department of Developmental Medical Sciences, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazi Selim Anwar
- Department of Infectious Diseases, School of Medicine, International University of Health and Welfare (IUHW), Narita Campus, Chiba, Japan
| | | | - Sk Azimul Hoque
- National Institute Neuroscience and Hospital, Agargaon, Dhaka, Bangladesh
| | - Pattara Khamrin
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Department of Microbiology, Faculty of Medicine, Chiang Mai University, Thailand
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.
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Owor BE, Mwanga MJ, Njeru R, Mugo R, Ngama M, Otieno GP, Nokes DJ, Agoti CN. Molecular characterization of rotavirus group A strains circulating prior to vaccine introduction in rural coastal Kenya, 2002-2013. Wellcome Open Res 2019; 3:150. [PMID: 31020048 PMCID: PMC6464063 DOI: 10.12688/wellcomeopenres.14908.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2019] [Indexed: 11/25/2022] Open
Abstract
Background: Kenya introduced the monovalent Rotarix® rotavirus group A (RVA) vaccine nationally in mid-2014. Long-term surveillance data is important prior to wide-scale vaccine use to assess the impact on disease and to investigate the occurrence of heterotypic strains arising through immune selection. This report presents baseline data on RVA genotype circulation patterns and intra-genotype genetic diversity over a 7-year period in the pre-vaccine era in Kilifi, Kenya, from 2002 to 2004 and from 2010 to 2013. Methods: A total of 745 RVA strains identified in children admitted with acute gastroenteritis to a referral hospital in Coastal Kenya, were sequenced using the di-deoxy sequencing method in the VP4 and VP7 genomic segments (encoding P and G proteins, respectively). Sequencing successfully generated 569 (76%) and 572 (77%) consensus sequences for the VP4 and VP7 genes respectively. G and P genotypes were determined by use of BLAST and the online RotaC v2 RVA classification tool. Results: The most common GP combination was G1P[8] (51%), similar to the Rotarix® strain, followed by G9P[8] (15%) , G8P[4] (14%) and G2P[4] (5%). Unusual GP combinations—G1P[4], G2P[8], G3P[4,6], G8P[8,14], and G12P[4,6,8]—were observed at frequencies of <5%. Phylogenetic analysis showed that the infections were caused by both locally persistent strains as evidenced by divergence of local strains occurring over multiple seasons from the global ones, and newly introduced strains, which were closely related to global strains. The circulating RVA diversity showed temporal fluctuations both season by season and over the longer-term. None of the unusual strains increased in frequency over the observation period. Conclusions: The circulating RVA diversity showed temporal fluctuations with several unusual strains recorded, which rarely caused major outbreaks. These data will be useful in interpreting genotype patterns observed in the region during the vaccine era.
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Affiliation(s)
- Betty E Owor
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya
| | - Mike J Mwanga
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya
| | - Regina Njeru
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya
| | - Robert Mugo
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya
| | - Mwanajuma Ngama
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya
| | - Grieven P Otieno
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya
| | - D J Nokes
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya.,School of Life Sciences and Zeeman Institute for Systems Biology and Infectious Disease Epidemiology, Warwick University, Coventry, Coventry, CV4 7AL, Kenya
| | - C N Agoti
- Epidemiology and Demography, KEMRI Wellcome Trust Research Program, Kilifi, Kilifi, 80108, Kenya.,School of Health and Human Sciences, Pwani University, Kilifi, Kilifi, 80108, Kenya
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Athiyyah AF, Utsumi T, Wahyuni RM, Dinana Z, Yamani LN, Soetjipto, Sudarmo SM, Ranuh RG, Darma A, Juniastuti, Raharjo D, Matsui C, Deng L, Abe T, Doan YH, Fujii Y, Shimizu H, Katayama K, Lusida MI, Shoji I. Molecular Epidemiology and Clinical Features of Rotavirus Infection Among Pediatric Patients in East Java, Indonesia During 2015-2018: Dynamic Changes in Rotavirus Genotypes From Equine-Like G3 to Typical Human G1/G3. Front Microbiol 2019; 10:940. [PMID: 31130934 PMCID: PMC6510320 DOI: 10.3389/fmicb.2019.00940] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 04/12/2019] [Indexed: 11/13/2022] Open
Abstract
Group A rotavirus (RVA) is the most important cause of severe gastroenteritis among children worldwide, and effective RVA vaccines have been introduced in many countries. Here we performed a molecular epidemiological analysis of RVA infection among pediatric patients in East Java, Indonesia, during 2015-2018. A total of 432 stool samples were collected from hospitalized pediatric patients with acute gastroenteritis. None of the patients in this cohort had been immunized with an RVA vaccine. The overall prevalence of RVA infection was 31.7% (137/432), and RVA infection was significantly more prevalent in the 6- to 11-month age group than in the other age groups (P < 0.05). Multiplex reverse transcription-PCR (RT-PCR) revealed that the most common G-P combination was equine-like G3P[8] (70.8%), followed by equine-like G3P[6] (12.4%), human G1P[8] (8.8%), G3P[6] (1.5%), and G1P[6] (0.7%). Interestingly, the equine-like strains were exclusively detected until May 2017, but in July 2017 they were completely replaced by a typical human genotype (G1 and G3), suggesting that the dynamic changes in RVA genotypes from equine-like G3 to typical human G1/G3 in Indonesia can occur even in the country with low RVA vaccine coverage rate. The mechanism of the dynamic changes in RVA genotypes needs to be explored. Infants and children with RVA-associated gastroenteritis presented more frequently with some dehydration, vomiting, and watery diarrhea, indicating a greater severity of RVA infection compared to those with non-RVA gastroenteritis. In conclusion, a dynamic change was found in the RVA genotype from equine-like G3 to a typical human genotype. Since severe cases of RVA infection were prevalent, especially in children aged 6 to 11 months or more generally in those less than 2 years old, RVA vaccination should be included in Indonesia's national immunization program.
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Affiliation(s)
- Alpha Fardah Athiyyah
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia.,Department of Child Health, Soetomo Hospital, Airlangga University, Surabaya, Indonesia
| | - Takako Utsumi
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia.,Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Rury Mega Wahyuni
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Zayyin Dinana
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Laura Navika Yamani
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Soetjipto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Subijanto Marto Sudarmo
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia.,Department of Child Health, Soetomo Hospital, Airlangga University, Surabaya, Indonesia
| | - Reza Gunadi Ranuh
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia.,Department of Child Health, Soetomo Hospital, Airlangga University, Surabaya, Indonesia
| | - Andy Darma
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia.,Department of Child Health, Soetomo Hospital, Airlangga University, Surabaya, Indonesia
| | - Juniastuti
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Dadik Raharjo
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Chieko Matsui
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Lin Deng
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takayuki Abe
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yen Hai Doan
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshiki Fujii
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroyuki Shimizu
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazuhiko Katayama
- Laboratory of Viral Infection I, Department of Infection Control and Immunology, Kitasato Institute for Life Sciences and Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Maria Inge Lusida
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Ikuo Shoji
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
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Hoque SA, Thongprachum A, Takanashi S, Mostafa SM, Saito H, Anwar KS, Nomura A, Hoque SA, Begum R, Sultana UN, Hossain T, Khamrin P, Okitsu S, Hayakawa S, Ushijima H. Alarming Situation of Spreading Enteric Viruses Through Sewage Water in Dhaka City: Molecular Epidemiological Evidences. FOOD AND ENVIRONMENTAL VIROLOGY 2019; 11:65-75. [PMID: 30607905 DOI: 10.1007/s12560-018-09363-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
Global burden of acute viral gastroenteritis remains high, particularly in developing countries including Bangladesh. Sewage water (SW) is an important node to monitor enteric pathogens both in the environment and among the population. Analysis of SW in Dhaka city deems crucially important because a large number of urban-city dwellers live in Dhaka city, the capital of Bangladesh, under a constant threat of precarious sewerage system. In this study, we collected raw SW from five locations of Dhaka city every month from June 2016 to May 2017. It was concentrated with polyethylene glycol (PEG) and investigated for three major enteric viruses, rotavirus A (RVA), norovirus GII (NoV GII) and adenovirus (AdV) using polymerase chain reaction (PCR). Most of these SW samples collected from both hospitals and non-hospital areas yielded enteric viruses: 76% samples were positive for AdV, followed by 53% NoV GII and 38% RVA. Viral load was determined as much as 1 × 107 copies/ml for RVA and 3.5 × 103 copies/ml for NoV GII. Importantly, NoV GII and AdV that can affect people of all ages were predominated during monsoon also when SW overflows and spreads over a wide and crowded area. Genotypes G1, G2, G3, G8, and G9 for RVA, GII.4 for NoV, and type 41 for AdV were detected representing the current profile of circulating genotypes in the population. This study provides the first evidence of distribution of major diarrheal viruses in SW in Dhaka city which is alarming showing grave risk of impending outbreaks through exposure.
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Affiliation(s)
- Sheikh Ariful Hoque
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh.
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.
| | - Aksara Thongprachum
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
- Faculty of Public Health, Chiang Mai University, Chiang Mai, Thailand
| | - Sayaka Takanashi
- Department of Developmental Medical Sciences, School of International Health, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Salwa Mohd Mostafa
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Hiroyuki Saito
- Akita Prefectural Research Center for Public Health and Environment, Akita, Japan
| | - Kazi Selim Anwar
- Department of Infectious Diseases, International University of Health and Welfare (IUHW), Narita Campus, Narita, Chiba, Japan
| | - Akiko Nomura
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Sk Azimul Hoque
- National Institute Neuroscience and Hospital, Agargaon, Dhaka, Bangladesh
| | - Rokeya Begum
- Genetic Engineering and Biotechnology Research Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Ummay Nasrin Sultana
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Tania Hossain
- Cell and Tissue Culture Laboratory, Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Pattara Khamrin
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Shoko Okitsu
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
- Faculty of Public Health, Chiang Mai University, Chiang Mai, Thailand
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
- Faculty of Public Health, Chiang Mai University, Chiang Mai, Thailand
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Kamiya H, Tacharoenmuang R, Ide T, Negoro M, Tanaka T, Asada K, Nakamura H, Sugiura K, Umemoto M, Kuroki H, Ito H, Tanaka S, Ito M, Fukuda S, Hatazawa R, Hara Y, Guntapong R, Murata T, Taniguchi K, Suga S, Nakano T, Taniguchi K, Komoto S. Characterization of an Unusual DS-1-Like G8P[8] Rotavirus Strain from Japan in 2017: Evolution of Emerging DS-1-Like G8P[8] Strains through Reassortment. Jpn J Infect Dis 2019; 72:256-260. [PMID: 30814461 DOI: 10.7883/yoken.jjid.2018.484] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The emergence of unusual DS-1-like intergenogroup reassortant rotaviruses with a bovine-like G8 genotype (DS-1-like G8P[8] strains) has been reported in several Asian countries. During the rotavirus surveillance program in Japan in 2017, a DS-1-like G8P[8] strain (RVA/Human-wt/JPN/SO1162/2017/G8P[8]) was identified in 43 rotavirus-positive stool samples. Strain SO1162 was shown to have a unique genotype constellation, including genes from both genogroup 1 and 2: G8-P[8]-I2-R2-C2-M2-A2-N2-T2-E2-H2. Phylogenetic analysis revealed that the VP1 gene of strain SO1162 appeared to have originated from DS-1-like G1P[8] strains from Thailand and Vietnam, while the remaining 10 genes were closely related to those of previously reported DS-1-like G8P[8] strains. Thus, SO1162 was suggested to be a reassortant strain that acquired the VP1 gene from Southeast Asian DS-1-like G1P[8] strains on the genetic background of co-circulating DS-1-like G8P[8] strains. Our findings provide important insights into the evolutionary dynamics of emerging DS-1-like G8P[8] strains.
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Affiliation(s)
- Hajime Kamiya
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases
| | - Ratana Tacharoenmuang
- Department of Virology and Parasitology, Fujita Health University School of Medicine.,National Institute of Health, Department of Medical Sciences
| | - Tomihiko Ide
- Department of Virology and Parasitology, Fujita Health University School of Medicine
| | - Manami Negoro
- Institute for Clinical Research, National Mie Hospital
| | | | | | | | | | | | | | - Hiroaki Ito
- Department of Pediatrics, Kameda Medical Center
| | | | - Mitsue Ito
- Department of Pediatrics, Japanese Red Cross Ise Hospital
| | - Saori Fukuda
- Department of Virology and Parasitology, Fujita Health University School of Medicine
| | - Riona Hatazawa
- Department of Virology and Parasitology, Fujita Health University School of Medicine
| | - Yuya Hara
- Department of Virology and Parasitology, Fujita Health University School of Medicine
| | | | - Takayuki Murata
- Department of Virology and Parasitology, Fujita Health University School of Medicine
| | | | | | | | - Koki Taniguchi
- Department of Virology and Parasitology, Fujita Health University School of Medicine
| | - Satoshi Komoto
- Department of Virology and Parasitology, Fujita Health University School of Medicine
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Owor BE, Mwanga MJ, Njeru R, Mugo R, Ngama M, Otieno GP, Nokes D, Agoti C. Molecular characterization of rotavirus group A strains circulating prior to vaccine introduction in rural coastal Kenya, 2002-2013. Wellcome Open Res 2018; 3:150. [DOI: 10.12688/wellcomeopenres.14908.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2018] [Indexed: 11/20/2022] Open
Abstract
Background: Kenya introduced the monovalent Rotarix® rotavirus group A (RVA) vaccine nationally in mid-2014. Long-term surveillance data is important prior to wide-scale vaccine use to assess the impact on disease and to investigate the occurrence of heterotypic strains arising through immune selection. This report presents baseline data on RVA genotype circulation patterns and intra-genotype genetic diversity over a 7-year period in the pre-vaccine era in Kilifi, Kenya, from 2002 to 2004 and from 2010 to 2013. Methods: A total of 745 RVA strains identified in children admitted with acute gastroenteritis to a referral hospital in Coastal Kenya, were sequenced using the di-deoxy sequencing method in the VP4 and VP7 genomic segments (encoding P and G proteins, respectively). Sequencing successfully generated 569 (76%) and 572 (77%) consensus sequences for the VP4 and VP7 genes respectively. G and P genotypes were determined by use of BLAST and the online RotaC v2 RVA classification tool. Results: The most common GP combination was G1P[8] (51%), similar to the Rotarix® strain, followed by G9P[8] (15%) , G8P[4] (14%) and G2P[4] (5%). Unusual GP combinations—G1P[4], G2P[8], G3P[4,6], G8P[8,14], and G12P[4,6,8]—were observed at frequencies of <5%. Phylogenetic analysis showed that the infections were caused by both locally persistent strains as evidenced by divergence of local strains occurring over multiple seasons from the global ones, and newly introduced strains, which were closely related to global strains. The circulating RVA diversity showed temporal fluctuations both season by season and over the longer-term. None of the unusual strains increased in frequency over the observation period. Conclusions: The circulating RVA diversity showed temporal fluctuations with several unusual strains recorded, which rarely caused major outbreaks. These data will be useful in interpreting genotype patterns observed in the region during the vaccine era.
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Hara M, Nakagomi O. Role of rotavirus vaccination on an emerging G8P[8] rotavirus strain causing an outbreak in central Japan. Vaccine 2018; 36:5109. [DOI: 10.1016/j.vaccine.2018.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 05/01/2018] [Indexed: 10/28/2022]
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Our response to the letter to the editor. Vaccine 2018; 36:5110-5111. [DOI: 10.1016/j.vaccine.2018.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/23/2018] [Accepted: 05/01/2018] [Indexed: 11/17/2022]
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