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Sadiq A, Khan T, Bostan N, Yinda CK, Matthijnssens J. Antigenic epitope analysis of Pakistani G3 and G9 rotavirus strains compared to vaccine strains revealed multiple amino acid differences. Diagn Microbiol Infect Dis 2024; 109:116346. [PMID: 38759540 DOI: 10.1016/j.diagmicrobio.2024.116346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/13/2023] [Accepted: 05/08/2024] [Indexed: 05/19/2024]
Abstract
Rotaviruses belong to genotype VP4-P[8] are a significant cause of severe loose diarrhea in infants and young children. In the present study, we characterised the complete genome of three of the Pakistani P[8]b RVA strains by Illumina HiSeq sequencing technology to determine the complete genotype constellation providing insight into the evolutionary dynamics of their genes using maximum likelihood analysis. The maximum genomic sequences of our study strains were similar to more recent human Wa-Like G1P[8]a, G3P[8]a, G4P[6], G4P[8], G9P[4], G9P[8]a, G11P[25],G12P[8]a and G12P[6] strains circulating around the world. Therefore, strains PAK274, PAK439 and PAK624 carry natively distinctive VP4 gene with universally common human Wa-Like genetic backbone. Comparing our study P[8]b strains with vaccines strains RotarixTM and RotaTeqTM, multiple amino acid differences were examined between vaccine virus antigenic epitopes and Pakistani isolates. Over time, these differences may result in the selection for strains that will escape the vaccine-induced RVA-neutralizing-antibody effect.
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Affiliation(s)
- Asma Sadiq
- Department of Microbiology, University of Jhang, Jhang, Pakistan
| | - Tariq Khan
- Department of Biosciences, COMSATS University (CUI), Park Road, Tarlai Kalan, Chak Shahzad, Islamabad,45550, Pakistan
| | - Nazish Bostan
- Department of Biosciences, COMSATS University (CUI), Park Road, Tarlai Kalan, Chak Shahzad, Islamabad,45550, Pakistan.
| | - Claude Kwe Yinda
- KU Leuven-University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Viral Metagenomics, Leuven, Belgium
| | - Jelle Matthijnssens
- KU Leuven-University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Viral Metagenomics, Leuven, Belgium
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2
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Hoa-Tran TN, Nakagomi T, Vu HM, Nguyen TTT, Dao ATH, Nguyen AT, Bines JE, Thomas S, Grabovac V, Kataoka-Nakamura C, Taichiro T, Hasebe F, Kodama T, Kaneko M, Dang HTT, Duong HT, Anh DD, Nakagomi O. Evolution of DS-1-like G8P[8] rotavirus A strains from Vietnamese children with acute gastroenteritis (2014-21): Adaptation and loss of animal rotavirus-derived genes during human-to-human spread. Virus Evol 2024; 10:veae045. [PMID: 38952820 PMCID: PMC11215986 DOI: 10.1093/ve/veae045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/27/2024] [Accepted: 06/21/2024] [Indexed: 07/03/2024] Open
Abstract
Animal rotaviruses A (RVAs) are considered the source of emerging, novel RVA strains that have the potential to cause global spread in humans. A case in point was the emergence of G8 bovine RVA consisting of the P[8] VP4 gene and the DS-1-like backbone genes that appeared to have jumped into humans recently. However, it was not well documented what evolutionary changes occurred on the animal RVA-derived genes during circulation in humans. Rotavirus surveillance in Vietnam found that DS-1-like G8P[8] strains emerged in 2014, circulated in two prevalent waves, and disappeared in 2021. This surveillance provided us with a unique opportunity to investigate the whole process of evolutionary changes, which occurred in an animal RVA that had jumped the host species barrier. Of the 843 G8P[8] samples collected from children with acute diarrhoea in Vietnam between 2014 and 2021, fifty-eight strains were selected based on their distinctive electropherotypes of the genomic RNA identified using polyacrylamide gel electrophoresis. Whole-genome sequence analysis of those fifty-eight strains showed that the strains dominant during the first wave of prevalence (2014-17) carried animal RVA-derived VP1, NSP2, and NSP4 genes. However, the strains from the second wave of prevalence (2018-21) lost these genes, which were replaced with cognate human RVA-derived genes, thus creating strain with G8P[8] on a fully DS-1-like human RVA gene backbone. The G8 VP7 and P[8] VP4 genes underwent some point mutations but the phylogenetic lineages to which they belonged remained unchanged. We, therefore, propose a hypothesis regarding the tendency for the animal RVA-derived genes to be expelled from the backbone genes of the progeny strains after crossing the host species barrier. This study underlines the importance of long-term surveillance of circulating wild-type strains in order to better understand the adaptation process and the fate of newly emerging, animal-derived RVA among the human population. Further studies are warranted to disclose the molecular mechanisms by which spillover animal RVAs become readily transmissible among humans, and the roles played by the expulsion of animal-derived genes and herd immunity formed in the local population.
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Affiliation(s)
- Thi Nguyen Hoa-Tran
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Toyoko Nakagomi
- Department of Hygiene and Molecular Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
| | - Hung Manh Vu
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Trang Thu Thi Nguyen
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Anh Thi Hai Dao
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Anh The Nguyen
- Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Julie E Bines
- Enteric Diseases Group, Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria 3052, Australia
| | - Sarah Thomas
- Enteric Diseases Group, Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria 3052, Australia
| | - Varja Grabovac
- Vaccine-Preventable Diseases and Immunization Unit, Division of Programmes for Disease Control, World Health Organization Regional Office for the Western Pacific, Manila 1000, Philippines
| | - Chikako Kataoka-Nakamura
- Center Surveillance Division, The Research Foundation for Microbial Diseases of Osaka University, Osaka 768-0065, Japan
| | - Takemura Taichiro
- Vietnam Research Station, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
- Vietnam Research Station, National Institute of Hygiene and Epidemiology-Nagasaki University, Hanoi 100000, Vietnam
| | - Futoshi Hasebe
- Vietnam Research Station, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
- Vietnam Research Station, National Institute of Hygiene and Epidemiology-Nagasaki University, Hanoi 100000, Vietnam
| | - Toshio Kodama
- Department of Bacteriology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Miho Kaneko
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
| | - Huyen Thi Thanh Dang
- National office for Expanded Program on Immunization, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Hong Thi Duong
- National office for Expanded Program on Immunization, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Dang Duc Anh
- Department of Bacteriology, National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Osamu Nakagomi
- Department of Hygiene and Molecular Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
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Fukuda Y, Kusuhara H, Takai-Todaka R, Haga K, Katayama K, Tsugawa T. Human transmission and outbreaks of feline-like G6 rotavirus revealed with whole-genome analysis of G6P[9] feline rotavirus. J Med Virol 2024; 96:e29565. [PMID: 38558056 DOI: 10.1002/jmv.29565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 04/04/2024]
Abstract
Group A rotaviruses (RVAs) are generally highly species-specific; however, some strains infect across species. Feline RVAs sporadically infect humans, causing gastroenteritis. In 2012 and 2013, rectal swab samples were collected from 61 asymptomatic shelter cats at a public health center in Mie Prefecture, Japan, to investigate the presence of RVA and any association with human infections. The analysis identified G6P[9] strains in three cats and G3P[9] strains in two cats, although no feline RVA sequence data were available for the former. A whole-genome analysis of these G6P[9] strains identified the genotype constellation G6-P[9]-I2-R2-C2-M2-A3-N2-T3-E3-H3. The nucleotide identity among these G6P[9] strains exceeded 99.5% across all 11 gene segments, indicating the circulation of this G6P[9] strain among cats. Notably, strain RVA/Human-wt/JPN/KF17/2010/G6P[9], previously detected in a 3-year-old child with gastroenteritis, shares high nucleotide identity (>98%) with Mie20120017f, the representative G6P[9] strain in this study, across all 11 gene segments, confirming feline RVA infection and symptomatic presentation in this child. The VP7 gene of strain Mie20120017f also shares high nucleotide identity with other sporadically reported G6 RVA strains in humans. This suggests that feline-origin G6 strains as the probable source of these sporadic G6 RVA strains causing gastroenteritis in humans globally. Moreover, a feline-like human G6P[8] strain circulating in Brazil in 2022 was identified, emphasizing the importance of ongoing surveillance to monitor potential global human outbreaks of RVA.
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Affiliation(s)
- Yuya Fukuda
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
- Laboratory of Viral Infection, Department of Infection Control and Immunology, Ōmura Satoshi Memorial Institute & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Hajime Kusuhara
- Mie Prefecture Health and Environment Research Institute, Mie, Japan
| | - Reiko Takai-Todaka
- Laboratory of Viral Infection, Department of Infection Control and Immunology, Ōmura Satoshi Memorial Institute & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Kei Haga
- Laboratory of Viral Infection, Department of Infection Control and Immunology, Ōmura Satoshi Memorial Institute & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Kazuhiko Katayama
- Laboratory of Viral Infection, Department of Infection Control and Immunology, Ōmura Satoshi Memorial Institute & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Takeshi Tsugawa
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan
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4
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Peng R, Li D, Wang J, Xiong G, Wang M, Liu D, Wei Y, Pang L, Sun X, Li H, Kong X, Shahar S, Duan Z. Reassortment and genomic analysis of a G9P[8]-E2 rotavirus isolated in China. Virol J 2023; 20:135. [PMID: 37349792 PMCID: PMC10286334 DOI: 10.1186/s12985-023-02064-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/07/2023] [Indexed: 06/24/2023] Open
Abstract
OBJECTIVE To isolate a prevalent G9P[8] group A rotavirus (RVA) (N4006) in China and investigate its genomic and evolutionary characteristics, with the goal of facilitating the development of a new rotavirus vaccine. METHODS The RVA G9P[8] genotype from a diarrhea sample was passaged in MA104 cells. The virus was evaluated by TEM, polyacrylamide gel electrophoresis, and indirect immunofluorescence assay. The complete genome of virus was obtained by RT-PCR and sequencing. The genomic and evolutionary characteristics of the virus were evaluated by nucleic acid sequence analysis with MEGA ver. 5.0.5 and DNASTAR software. The neutralizing epitopes of VP7 and VP4 (VP5* and VP8*) were analyzed using BioEdit ver. 7.0.9.0 and PyMOL ver. 2.5.2. RESULTS The RVA N4006 (G9P[8] genotype) was adapted in MA104 cells with a high titer (105.5 PFU/mL). Whole-genome sequence analysis showed N4006 to be a reassortant rotavirus of Wa-like G9P[8] RVA and the NSP4 gene of DS-1-like G2P[4] RVA, with the genotype constellation G9-P[8]-I1-R1-C1-M1-A1-N1-T1-E2-H1 (G9P[8]-E2). Phylogenetic analysis indicated that N4006 had a common ancestor with Japanese G9P[8]-E2 rotavirus. Neutralizing epitope analysis showed that VP7, VP5*, and VP8* of N4006 had low homology with vaccine viruses of the same genotype and marked differences with vaccine viruses of other genotypes. CONCLUSION The RVA G9P[8] genotype with the G9-P[8]-I1-R1-C1-M1-A1-N1-T1-E2-H1 (G9P[8]-E2) constellation predominates in China and may originate from reassortment between Japanese G9P[8] with Japanese DS-1-like G2P[4] rotaviruses. The antigenic variation of N4006 with the vaccine virus necessitates an evaluation of the effect of the rotavirus vaccine on G9P[8]-E2 genotype rotavirus.
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Affiliation(s)
- Rui Peng
- Department of Biosciences, Faculty of Sciences, Universiti Teknologi Malaysia, Johor Bahru, 81310 Malaysia
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
- College of Life Science, Hengshui University, Hengshui, 053000 China
| | - Dandi Li
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Jindong Wang
- Department of Pathogenic Biology, Weifang Medical University, Weifang, 261053 China
| | - Guangping Xiong
- College of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000 China
| | - Mengxuan Wang
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Dan Liu
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Yuhang Wei
- College of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000 China
| | - Lili Pang
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Xiaoman Sun
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Huiying Li
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Xiangyu Kong
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
| | - Saleha Shahar
- Department of Biosciences, Faculty of Sciences, Universiti Teknologi Malaysia, Johor Bahru, 81310 Malaysia
| | - Zhaojun Duan
- NHC Key Laboratory of Medical Viruses and Viral Diseases, Institute of Viral Disease Prevention and Control, National Health Commission, Chinese Centre for Disease Control and Prevention, Beijing, 102206 China
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5
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Liu X, Wang M, Li S, Li J, Xiao J, Li H, Zhang Q, Kong X, Wang H, Li D, Duan Z. Genomic and evolutionary characteristics of G9P[8], the dominant group a rotavirus in China (2016–2018). Front Microbiol 2022; 13:997957. [PMID: 36187963 PMCID: PMC9522900 DOI: 10.3389/fmicb.2022.997957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/22/2022] [Indexed: 12/04/2022] Open
Abstract
G9P[8] became the predominant rotavirus A (RVA) genotype in China in 2012. To evaluate its genetic composition at the whole-genome level, 115 G9P[8] RVA strains isolated from children under 5 years old were sequenced and characterized. All 13 strains in 2016 and 2017 and an additional 54 strains in 2018 were genotyped as G9-P[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1. The other 48 strains in 2018 were all genotyped as G9-P[8]-I1-R1-C1-M1-A1-N1-T1-E2-H1, with the NSP4 gene characterized as a DS-1-like genotype. The time of the most recent common ancestor (tMRCA) and evolution rates of the VP7, VP4, and NSP4 (E1 and E2) genes of these strains were estimated by Bayesian evolutionary dynamics analysis. We estimated the evolution rates (nt substitutions per site per year) as 1.38 × 10–3 [the 95% highest posterior density (HPD) was 1.09–1.72 × 10–3] for VP7, 0.87 × 10–3 (95% HPD: 0.75–1.00 × 10–3) for VP4, 0.56 × 10–3 (95% HPD: 0.41–0.73 × 10–3) for NSP4-E1, and 1.35 × 10–3 (95% HPD: 0.92–1.86 × 10–3) for NSP4-E2. The tMRCA was estimated to be 1935.4 (95% HPD: 1892.4–1961.3) for VP7, 1894.3 (95% HPD: 1850.5–1937.8) for VP4, 1929.4 (95% HPD: 1892.4–1961.3) for NSP4-E1, and 1969.2 (95% HPD: 1942.2–1985.3) for NSP4-E2. The baseline genetic information in this study is expected to improve our understanding of the genomic and evolutionary characteristics of the rotavirus genome. Furthermore, it will provide a basis for the development of next-generation rotavirus vaccines for humans.
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Affiliation(s)
- Xiafei Liu
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Mengxuan Wang
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Shan Li
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jingxin Li
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Jinbo Xiao
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Huiying Li
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Qing Zhang
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Xiangyu Kong
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Hong Wang
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
| | - Dandi Li
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
- *Correspondence: Dandi Li,
| | - Zhaojun Duan
- Chinese Center for Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention, Beijing, China
- Zhaojun Duan,
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Chen Y, Wu R, Mi W, Ghonaim AH, Ren W, Yang L, Ruan S, He Q, Chen H, Jiang Y. Molecular evolution and genetic characteristics of G3P[3] group A canine rotavirus isolated in Wuhan, China. J Gen Virol 2022; 103. [PMID: 36125243 DOI: 10.1099/jgv.0.001784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Rotaviruses can infect multiple animal species and have the potential for cross-recombination based on the segmented genome characteristics. To study the intra-host recombination and zoonotic potential of group A canine rotavirus (CRV), 438 samples were collected from domestic dogs in six animal hospitals and from stray dogs from October 2019 to May 2021 in Wuhan, China. Seven of the samples were positive (7/438) for group A CRV from which a CRV strain was successfully isolated in MA-104 cells. The genotype of the isolated strain was characterized by whole-genome sequencing showing that the genotype was group A CRV G3P[3]. According to the Rotavirus Classification Working Group (RCWG), the genomic constellation of the isolated CRV was G3-P[3]-I3-R3-C3-M3-A9-N2-T3-E3-H6, which belongs to the AU-1-like group with gene segments of AU-1-like and Cat 97-like strains. Based on the phylogenetic analysis of the 11 gene segments, we found that the different segments of the isolated group A CRV were closely related to several reassortment rotaviruses from different animal sources and bat strains. Based on the analysis of the molecular evolution and genetic characteristics, we concluded that the isolated strain might be a reassortment strain. These data further enrich our understanding of rotavirus molecular evolution and genetic characteristics in China.
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Affiliation(s)
- Yue Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, PR China
| | - Renwei Wu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Wenqin Mi
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, Hubei 430070, PR China
| | - Ahmed H Ghonaim
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, PR China.,International Research Center for Animal Disease, Ministry of Science and Technology of the People's Republic of China, Wuhan, Hubei 430070, PR China
| | - Wenhui Ren
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, PR China
| | - Lijun Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, PR China
| | - Shennan Ruan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, PR China
| | - Qigai He
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, PR China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, Hubei 430070, PR China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, Hubei 430070, PR China.,International Research Center for Animal Disease, Ministry of Science and Technology of the People's Republic of China, Wuhan, Hubei 430070, PR China
| | - Yunbo Jiang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
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7
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Liu X, Wang M, Wang M, Xiao J, Mao T, Li H, Zhang Q, Kong X, Wang H, Li D, Duan Z. Genomic and evolutionary characteristics of G3P[8] group a rotavirus strains in China, 2016 to 2018. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 101:105287. [PMID: 35487436 DOI: 10.1016/j.meegid.2022.105287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Rotavirus A (RVA) G3P[8] is sporadically detected in China, although G9P[8] predominates. To evaluate their genetic composition at the whole-genome level, 24 G3P[8] RVA strains isolated from children under five years were sequenced and characterized. The 24 strains were genotyped as G3-P[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1, indicating the Wa-like genotype constellation. A maximum clade credibility (MCC) tree for VP7 indicated that G3 had an estimated mean evolutionary rate of 7.279 × 10-4 substitutions/site/year; thus, 3-5 years would pass from the generation of an ancestor virus to the epidemic spread of that virus throughout China. Considering the ongoing prevalence as well as rapid evolution, it is important to monitor G3P[8] RVA epidemics; continuous nationwide surveillance is essential.
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Affiliation(s)
- Xiafei Liu
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Mengxuan Wang
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Mingwen Wang
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Jinbo Xiao
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Tongyao Mao
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Huiying Li
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Qing Zhang
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Xiangyu Kong
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Hong Wang
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Dandi Li
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China.
| | - Zhaojun Duan
- National Institute for Viral Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China.
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8
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Okitsu S, Khamrin P, Hikita T, Thongprachum A, Pham NTK, Hoque SA, Hayakawa S, Maneekarn N, Ushijima H. Changing distribution of rotavirus A genotypes circulating in Japanese children with acute gastroenteritis in outpatient clinic, 2014-2020. J Infect Public Health 2022; 15:816-825. [PMID: 35759807 DOI: 10.1016/j.jiph.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Rotavirus A (RVA) is a major cause of severe acute gastroenteritis (AGE) in infants and children worldwide. In Japan, two kinds of rotavirus vaccines have been introduced as voluntary vaccines in 2011 and 2012, respectively, and launched into the national vaccine program in October 2020. METHODS In this study, we investigated prevalence of RVA and their molecular characterization in the stool samples collected from infants and children with AGE who visited one outpatient clinic in Japan, from July 2014 to June 2020, during voluntary vaccination with two kinds of rotavirus vaccines. RESULTS The RVA detection rates decreased from 44.7 % in 2014-2015 to 35.4 % in 2018-2019, whereas in 2019-2020 the numbers of samples collected were dramatically decreased and none of RVA was detected. During this study period, rotavirus vaccination rates in this area increased from 32.4 % to 62.2 %. Distribution of RVA VP7 (G), VP4 (P), and VP6 (I) genotypes in this area had changed year by year; the major genotype combinations were G1P[8]I1 and G1P[8]I2 in 2014-2015, G2P[4]I2 and G9P[8]I1 in 2015-2016, G1P[8]I1 and G8P[8]I2 in 2017-2018, and G8P[8]I2 in 2018-2019. Phylogenetic analysis demonstrated that VP7 nucleotide sequences of G1 were genetically diverse compared with those of other G genotypes in this study. Meanwhile, predominance of unusual G2P[8]I1, G2P[8]I2 and mixed P genotypes were observed only in 2016-2017, but did not carry on in 2017-2019. The equine-like G3 was detected only in 2016-2017. CONCLUSIONS The results revealed diversity of RVA genotypes and the genotype combinations have changed year by year in Japan, during the study period of 2016-2020.
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Affiliation(s)
- 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, Chiang Mai University, Chiang Mai, Thailand; Center of Excellence in Emerging and Re-emerging Diarrheal Viruses, Chiang Mai University, Chiang Mai, Thailand
| | | | - Aksara Thongprachum
- Center of Excellence in Emerging and Re-emerging Diarrheal Viruses, Chiang Mai University, Chiang Mai, Thailand; Faculty of Public Health, Chiang Mai University, Chiang Mai, Thailand
| | - Ngan Thi Kim Pham
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Sheikh Ariful Hoque
- 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
| | - Niwat Maneekarn
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Center of Excellence in Emerging and Re-emerging Diarrheal Viruses, Chiang Mai University, Chiang Mai, Thailand
| | - Hiroshi Ushijima
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
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9
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Fukuda S, Akari Y, Hatazawa R, Negoro M, Tanaka T, Asada K, Nakamura H, Sugiura K, Umemoto M, Kuroki H, Ito H, Tanaka S, Ito M, Ide T, Murata T, Taniguchi K, Suga S, Kamiya H, Nakano T, Taniguchi K, Komoto S. Rapid spread of unusual G9P[8] human rotavirus strains possessing NSP4 genes of the E2 genotype in Japan. Jpn J Infect Dis 2022; 75:466-475. [DOI: 10.7883/yoken.jjid.2022.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Saori Fukuda
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
| | - Yuki Akari
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
| | - Riona Hatazawa
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
| | - Manami Negoro
- Institute for Clinical Research, National Mie Hospital, Japan
| | - Takaaki Tanaka
- Department of Pediatrics, Kawasaki Medical School, Japan
| | | | | | | | | | | | - Hiroaki Ito
- Department of Pediatrics, Kameda Medical Center, Japan
| | - Shigeki Tanaka
- Department of Pediatrics, Mie Chuo Medical Center, Japan
| | - Mitsue Ito
- Department of Pediatrics, Japanese Red Cross Ise Hospital, Japan
| | - Tomihiko Ide
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
| | - Takayuki Murata
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
| | | | - Shigeru Suga
- Department of Pediatrics, National Mie Hospital, Japan
| | - Hajime Kamiya
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Japan
| | - Takashi Nakano
- Department of Pediatrics, Kawasaki Medical School, Japan
| | - Koki Taniguchi
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
| | - Satoshi Komoto
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Japan
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10
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Hasan H, Nasirudeen NA, Ruzlan MAF, Mohd Jamil MA, Ismail NAS, Wahab AA, Ali A. Acute Infectious Gastroenteritis: The Causative Agents, Omics-Based Detection of Antigens and Novel Biomarkers. CHILDREN (BASEL, SWITZERLAND) 2021; 8:1112. [PMID: 34943308 PMCID: PMC8700514 DOI: 10.3390/children8121112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/25/2022]
Abstract
Acute infectious gastroenteritis (AGE) is among the leading causes of mortality in children less than 5 years of age worldwide. There are many causative agents that lead to this infection, with rotavirus being the commonest pathogen in the past decade. However, this trend is now being progressively replaced by another agent, which is the norovirus. Apart from the viruses, bacteria such as Salmonella and Escherichia coli and parasites such as Entamoeba histolytica also contribute to AGE. These agents can be recognised by their respective biological markers, which are mainly the specific antigens or genes to determine the causative pathogen. In conjunction to that, omics technologies are currently providing crucial insights into the diagnosis of acute infectious gastroenteritis at the molecular level. Recent advancement in omics technologies could be an important tool to further elucidate the potential causative agents for AGE. This review will explore the current available biomarkers and antigens available for the diagnosis and management of the different causative agents of AGE. Despite the high-priced multi-omics approaches, the idea for utilization of these technologies is to allow more robust discovery of novel antigens and biomarkers related to management AGE, which eventually can be developed using easier and cheaper detection methods for future clinical setting. Thus, prediction of prognosis, virulence and drug susceptibility for active infections can be obtained. Case management, risk prediction for hospital-acquired infections, outbreak detection, and antimicrobial accountability are aimed for further improvement by integrating these capabilities into a new clinical workflow.
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Affiliation(s)
- Haziqah Hasan
- Department of Pediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (H.H.); (N.A.N.); (M.A.F.R.); (M.A.M.J.)
| | - Nor Ashika Nasirudeen
- Department of Pediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (H.H.); (N.A.N.); (M.A.F.R.); (M.A.M.J.)
| | - Muhammad Alif Farhan Ruzlan
- Department of Pediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (H.H.); (N.A.N.); (M.A.F.R.); (M.A.M.J.)
| | - Muhammad Aiman Mohd Jamil
- Department of Pediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (H.H.); (N.A.N.); (M.A.F.R.); (M.A.M.J.)
| | - Noor Akmal Shareela Ismail
- Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia;
| | - Asrul Abdul Wahab
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia;
| | - Adli Ali
- Department of Pediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia; (H.H.); (N.A.N.); (M.A.F.R.); (M.A.M.J.)
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11
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Tsugawa T, Fujii Y, Akane Y, Honjo S, Kondo K, Nihira H, Kimura H, Kawasaki Y. Molecular characterization of the first human G15 rotavirus strain of zoonotic origin from the bovine species. J Gen Virol 2021; 102. [PMID: 33847554 DOI: 10.1099/jgv.0.001581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Group A rotaviruses (RVAs) infect a wide variety of mammalian and avian species. Animals act as a potential reservoir to RVA human infections by direct virion transmission or by contributing genes to reassortants. Here, we report the molecular characterization of a rare human RVA strain Ni17-46 with a genotype G15P[14], isolated in Japan in 2017 during rotavirus surveillance in a paediatric outpatient clinic. The genome constellation of this strain was G15-P[14]-I2-R2-C2-M2-A13-N2-T9-E2-H3. This is the first report of an RVA with G15 genotype in humans, and sequencing and phylogenetic analysis results suggest that human infection with this strain has zoonotic origin from the bovine species. Given the fact that this strain was isolated from a patient with gastroenteritis and dehydration symptoms, we must take into account the virulence of this strain in humans.
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Affiliation(s)
- Takeshi Tsugawa
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Yoshiki Fujii
- Department of Virology Ⅱ, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
| | - Yusuke Akane
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Saho Honjo
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Kenji Kondo
- Department of Pediatrics, Sunagawa City Hospital, Sunagawa, Hokkaido, Japan
| | | | - Hirokazu Kimura
- Graduate School of Health Science, Gunma Paz University, Takasaki, Gunma, Japan
| | - Yukihiko Kawasaki
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
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12
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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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13
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Kyo K, Takano C, Kasuga Y, Ogawa E, Ishige M, Pham NTK, Okitsu S, Ushijima H, Urakami T, Fuchigami T, Hayakawa S, Morioka I. Severe rotavirus gastroenteritis in children older than 5 years after vaccine introduction. J Infect Chemother 2020; 27:598-603. [PMID: 33386258 DOI: 10.1016/j.jiac.2020.11.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/29/2020] [Accepted: 11/11/2020] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Rotavirus (RV) is the major pathogen responsible for acute gastroenteritis in infants. Since RV vaccines were introduced, a substantial decline in the incidence of severe RV infection has been reported. However, some burden still exists, even in developed countries, including Japan. METHODS We retrospectively surveyed 380 patients hospitalized for acute gastroenteritis from 2015 to 2019. In 2019, additional detailed clinical information of 21 patients with RV gastroenteritis was obtained to evaluate the efficacy of the RV vaccine. Nine fecal samples from those patients were collected to detect the RV genotypes. RESULTS Our data showed an increasing trend in hospitalizations for severe RV gastroenteritis in children older than 5 years. According to the Vesikari clinical severity scores in the older group (≥5 years), the gastrointestinal symptoms in vaccinated patients were less severe than those in unvaccinated patients (p = 0.014). The genotype analysis revealed that G9P[8]I1 was the major genotype in the recruited patients in 2019. CONCLUSIONS This report warns that children older than 5 years could be affected by severe RV infection and suggests prompt intervention for this age group, similar to that in infants. In the new period in which the RV vaccine is included in Japanese national immunization programs beginning October 2020, continuous monitoring of patient clinical characteristics and RV epidemiology is required to determine the role of vaccines.
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Affiliation(s)
- Kiyoshi Kyo
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Chika Takano
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan; Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Yuki Kasuga
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Erika Ogawa
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Mika Ishige
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, 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
| | - Shoko Okitsu
- 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
| | - Tatsuhiko Urakami
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Tatsuo Fuchigami
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan; Department of Pediatrics, IMS Fujimi General Hospital, 1967-1, Tsuruma, Fujimi-shi, Saitama, 354-0021, Japan
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Ichiro Morioka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
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14
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Charoenkul K, Janetanakit T, Bunpapong N, Boonyapisitsopa S, Tangwangvivat R, Suwannakarn K, Theamboonlers A, Poovorawan Y, Amonsin A. Molecular characterization identifies intra-host recombination and zoonotic potential of canine rotavirus among dogs from Thailand. Transbound Emerg Dis 2020; 68:1240-1252. [PMID: 32772501 DOI: 10.1111/tbed.13778] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/13/2020] [Accepted: 08/04/2020] [Indexed: 12/01/2022]
Abstract
From September 2016 to January 2019, we collected 710 rectal swabs from both healthy and sick dogs from small animal hospitals in 5 provinces of Thailand. The samples were tested for canine rotavirus group A (CRV) by using one-step RT-PCR specific to the VP6 gene. Our results showed that 0.70% (5/710) were positive for CRV. The five CRVs were then characterized by whole-genome sequencing. Our results showed that the genotype of Thai CRVs is G3P[3], which is the predominant genotype reported in dogs. The Thai CRVs posed a novel genetic constellation 'G3-P[3]-I3-R3-C3-M3-A9-N2-T3-E3-H6', which has never been reported in CRVs from dogs but has been reported in rotaviruses from humans. Based on phylogenetic analysis, the Thai CRVs are the result of multiple reassortments in which gene segments might have originated from human and bat rotaviruses and suggests the zoonotic potential of the virus.
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Affiliation(s)
- Kamonpan Charoenkul
- Center of Excellence for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Taveesak Janetanakit
- Center of Excellence for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Napawan Bunpapong
- Center of Excellence for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Supanat Boonyapisitsopa
- Center of Excellence for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Ratanaporn Tangwangvivat
- Center of Excellence for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Kamol Suwannakarn
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Apiradee Theamboonlers
- Center of Excellence for Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence for Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Alongkorn Amonsin
- Center of Excellence for Emerging and Re-emerging Infectious Diseases in Animals, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
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15
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Zhou N, Zhou L, Wang B. Genetic Characterizations and Molecular Evolution of VP7 Gene in Human Group A Rotavirus G1. Viruses 2020; 12:v12080831. [PMID: 32751603 PMCID: PMC7472278 DOI: 10.3390/v12080831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/20/2020] [Accepted: 07/29/2020] [Indexed: 01/01/2023] Open
Abstract
Rotavirus group A (RVA) G1 is one leading genotype circulating in humans worldwide, and related molecular information from a global perspective is still limited. Here, we present a comprehensive description of the genetic characterizations and molecular evolution of the RVA G1 VP7 gene. Our results show that RVA G1 can be divided into two lineages and multiple sub-lineages with a relatively high genetic diversity. Vaccine strains are phylogenetic, closer to lineage I. The evolutionary rate of the RVA G1 VP7 gene is 8.869 × 10-4 substitutions/site/year, and its most recent common ancestor was in 1933. The RVA G1 VP7 gene shows a linear evolution at the nucleotide level and a linear accumulation of difference at the amino acid level. Sub-lineage replacement of G1 VP7 gene is also observed and the effective population size of the G1 VP7 gene has had great change in the past decades and has remained stable in recent years. Altogether, the RVA G1 VP7 gene constantly evolves and there is no clear evidence that the evolution of the RVA G1 VP7 gene was influenced by vaccines. Continuous surveillance is still indispensable to evaluate the molecular epidemiology of RVA, especially in the post-vaccination era.
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Affiliation(s)
- Nan Zhou
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Statistics, School of Public Health, Southeast University, Nanjing 210009, China;
| | - Lu Zhou
- Department of Acute Infectious Diseases, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China;
| | - Bei Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Statistics, School of Public Health, Southeast University, Nanjing 210009, China;
- Correspondence: ; Tel.: +86-25-83272569
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16
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Hoa-Tran TN, Nakagomi T, Vu HM, Nguyen TTT, Takemura T, Hasebe F, Dao ATH, Anh PHQ, Nguyen AT, Dang AD, Nakagomi O. Detection of three independently-generated DS-1-like G9P[8] reassortant rotavirus A strains during the G9P[8] dominance in Vietnam, 2016–2018. INFECTION GENETICS AND EVOLUTION 2020; 80:104194. [DOI: 10.1016/j.meegid.2020.104194] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 12/26/2019] [Accepted: 01/09/2020] [Indexed: 10/25/2022]
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17
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Phylodynamics of G4P[8] and G2P[4] strains of rotavirus A isolated in Russia in 2017 based on full-genome analyses. Virus Genes 2020; 56:537-545. [PMID: 32472472 DOI: 10.1007/s11262-020-01771-3] [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: 02/11/2020] [Accepted: 05/22/2020] [Indexed: 01/08/2023]
Abstract
Rotavirus A is a dynamically evolving pathogen causing acute gastroenteritis in children during the first years of life. In the present study, we conducted a phylodynamic analysis based on the complete sequences of 11 segments of rotaviruses with the G4P[8] and G2P[4] genotypes isolated in Russia in 2017. Since rotavirus has a segmented genome, our analysis was performed using the Bayesian approach based on separate samples of nucleotide sequences for each gene of the strains studied. For the strain with the genotype G4P[8], the most likely geographical locations of the nearest common ancestor were Russia (VP7, VP4, VP6), China (VP1), Thailand (VP3), Belgium (NSP1), Hungary (VP2, NSP2, NSP3), Italy (NSP4) and Japan (NSP5). For the strain with the G2P[4] genotype, India (VP7, VP4, VP6, NSP1, NSP4), Malawi (VP2, NSP2, NSP3), Australia (VP1), Italy (NSP5) and Bangladesh (VP3). The closest common ancestor of the strain with the genotype G4P[8] circulated in 2001-2012, depending on the gene being analyzed. For the strain with the G2P[4] genotype, the closest common ancestor dates from 2006 to 2013.
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Utsumi T, Wahyuni RM, Dinana Z, Gunawan E, Putra ASD, Mubawadi T, Soetjipto, Lusida MI, Shoji I. G2P[4] rotavirus outbreak in Belu, East Nusa Tenggara Province, Indonesia, 2018. J Infect Public Health 2020; 13:1592-1594. [PMID: 32475806 DOI: 10.1016/j.jiph.2020.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 11/29/2022] Open
Abstract
Rotavirus is a major cause of acute gastroenteritis (AGE) in children worldwide. However, rotavirus outbreak has rarely been reported in Indonesia. This study aims to identify the causative agent for AGE outbreak among children in Belu, East Nusa Tenggara, Indonesia in 2018. All the samples were negative for bacteria (Salmonella, V. cholera) and Norovirus. Ten out of 11 stool samples were rotavirus-positive by immunochromatography testing. Reverse-transcription polymerase chain reaction (RT-PCR) and phylogenetic analyses revealed that rotavirus G2P[4] was the possible causative agent for the AGE outbreak, although sample size was limited. These findings suggest that the AGE outbreak was caused by rotavirus G2P[4], highlighting the importance of rotavirus surveillance.
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Affiliation(s)
- 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, Hyogo, Japan.
| | - Rury M 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
| | - Emily Gunawan
- Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Arga S D Putra
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Teguh Mubawadi
- Surveillance team from Regional Center for Environmental Health and Disease Control of Surabaya, Indonesia
| | - Soetjipto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Maria I 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, Hyogo, Japan
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19
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Fujii Y, Oda M, Somura Y, Shinkai T. Molecular Characteristics of Novel Mono-Reassortant G9P[8] Rotavirus A Strains Possessing the NSP4 Gene of the E2 Genotype Detected in Tokyo, Japan. Jpn J Infect Dis 2019; 73:26-35. [PMID: 31564695 DOI: 10.7883/yoken.jjid.2019.211] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Rotavirus A (RVA) has been detected in patients with gastroenteritis even after vaccine introduction in Japan. To investigate circulating RVA strains, RVA-positive stool specimens obtained in Tokyo in 2017 and 2018 were analyzed using next-generation sequencing. A total of 50 and 21 RVA samples were obtained in 2017 and 2018, respectively. In 2017, G2P[4] (40.0%) was the most prevalent strain, followed by G3P[8] (DS-1-like) (28.0%), G8P[8] (10.0%), G3P[8] (Wa-like) (8.0%), G9P[8]-E1 (8.0%), and mixed infection (6.0%). In 2018, G3P[8] (DS-1-like) (28.6%) and G9P[8]-E2 (28.6%) were the most prevalent strains, followed by G9P[8]-E1 (19.0%), G2P[4] (9.5%), G8P[8] (9.5%), and mixed infection (4.8%). Six G9P[8]-E2 strains detected in 2018 showed an atypical genotype constellation (G9P[8]-I1-R1-C1-M1-A1-N1-T1-E2-H1), which had not been reported previously. Phylogenetic analyses suggested that the RVA virus was generated by inter-genogroup reassortment between commonly circulating G9P[8] and G2P[4] strains in Japan. The G9P[8] strain seemed to be reassorted with only the NSP4 gene of the E2 genotype of the G2P[4] strain. Since this newly-emerged G9P[8]-E2 virus was detected in different locations in Tokyo, the virus appears to have already begun to spread to a wider area.
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Affiliation(s)
- Yoshiki Fujii
- Department of Virology II, National Institute of Infectious Diseases
| | - Mayuko Oda
- Division of Virology, Department of Microbiology, Tokyo Metropolitan Institute of Public Health
| | - Yoshiko Somura
- Division of Virology, Department of Microbiology, Tokyo Metropolitan Institute of Public Health
| | - Takayuki Shinkai
- Division of Virology, Department of Microbiology, Tokyo Metropolitan Institute of Public Health
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20
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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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21
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Fujii Y, Doan YH, Wahyuni RM, Lusida MI, Utsumi T, Shoji I, Katayama K. Improvement of Rotavirus Genotyping Method by Using the Semi-Nested Multiplex-PCR With New Primer Set. Front Microbiol 2019; 10:647. [PMID: 30984154 PMCID: PMC6449864 DOI: 10.3389/fmicb.2019.00647] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 03/14/2019] [Indexed: 12/24/2022] Open
Abstract
Rotavirus A (RVA) is a major cause of gastroenteritis in infants and young children. After vaccine introduction, RVA surveillance has become more important for monitoring changes in genotype distribution, and the semi-nested multiplex-PCR is a popular method for RVA genotyping. In particular, the VP7 primer set reported by Gouvea and colleagues in 1990 is still widely used worldwide as the recommended WHO primer set in regional and national reference RVA surveillance laboratories. However, this primer set yielded some mistakes with recent epidemic strains. The newly emerged equine-like G3 strains were mistyped as G1, G8 strains were mistyped as G3, the G9 lineage 3 strains showed very weak band, and the G9 lineage 6 strains showed a G9-specific band and a non-specific band. Gouvea’s standard protocol has become relatively unreliable for identifying genotypes correctly. To overcome this limitation, we redesigned the primer set to include recent epidemic strains. Our new primer set enabled us to correctly identify the VP7 genotypes of representative epidemic strains by agarose gel electrophoresis (G1, G2, human typical G3, equine-like G3, G4, G8, G9, and G12). We believe that the multiplex-PCR method with our new primer set is a useful and valuable tool for surveillance of RVA epidemics.
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Affiliation(s)
- Yoshiki Fujii
- 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.,Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yen Hai Doan
- 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.,Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Rury Mega Wahyuni
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Surabaya, Indonesia
| | - Maria Inge Lusida
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, 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
| | - Ikuo Shoji
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, 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.,Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
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