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Aida S, Nahar S, Paul SK, Hossain MA, Kabir MR, Sarkar SR, Ahmed S, Ghosh S, Urushibara N, Kawaguchiya M, Aung MS, Sumi A, Kobayashi N. Whole genomic analysis of G2P[4] human Rotaviruses in Mymensingh, north-central Bangladesh. Heliyon 2016; 2:e00168. [PMID: 27722206 PMCID: PMC5047856 DOI: 10.1016/j.heliyon.2016.e00168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 08/25/2016] [Accepted: 09/21/2016] [Indexed: 12/16/2022] Open
Abstract
Rotavirus A (RVA) is a dominant causative agent of acute gastroenteritis in children worldwide. G2P[4] is one of the most common genotypes among human rotavirus (HRV) strains, and has been persistently prevalent in South Asia including Bangladesh. In the present study, whole genome sequences of a total of 16 G2P[4] HRV strains (8 strains each in 2010 and 2013) detected in Mymensingh, north-central Bangladesh were determined. These strains had typical DS-1-like genotype constellation. Most of gene segments from DS-1 genogroup exhibited high level sequence identities to each other (>98%), while slight diversity was observed for VP1, VP3, and NSP4 genes. By phylogenetic analysis, individual RNA segments were classified into one (V) or two-three lineages (V–VI or V–VII). In terms of lineages (sublineages) of 11 gene segments, the 16 Bangladeshi strains could be further classified into four clades (A-D) containing 8 lineage constellations, revealing the presence of three clades (A-C) with three lineage constellations in 2010, and a single clade (D) with four constellations in 2013. Therefore, co-existence of multiple G2P[4] HRV strains with different lineage constellations, and change in clades for the study period were demonstrated. Although amino acids in the antigenic regions on VP7 and VP4 were mostly identical to those of global G2P[4] strains after 2000, VP4 of clade D RVAs in 2013 had alanine and proline at positions 88 and 114, respectively, which are novel substitutions compared with recent global G2P[4] strains. Replacement of lineage constellations associated with unique amino acid changes in the antigenic region in VP4 suggested continuous genetic evolutionary state for emerging new G2P[4] rotavirus strains in Bangladesh.
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Affiliation(s)
- Satoru Aida
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
- Corresponding author at: Satoru Aida, Department of Hygiene, Sapporo Medical University School of Medicine, S-1 W-17, Chuo-ku, Sapporo 060–8556, Japan.Department of HygieneSapporo Medical University School of MedicineSapporoJapan
| | - Samsoon Nahar
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | - Shyamal Kumar Paul
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | | | | | - Santana Rani Sarkar
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | - Salma Ahmed
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | - Souvik Ghosh
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, St. Kitts, West Indies
| | - Noriko Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mitsuyo Kawaguchiya
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Ayako Sumi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Nobumichi Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
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152
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Wandera EA, Mohammad S, Komoto S, Maeno Y, Nyangao J, Ide T, Kathiiko C, Odoyo E, Tsuji T, Taniguchi K, Ichinose Y. Molecular epidemiology of rotavirus gastroenteritis in Central Kenya before vaccine introduction, 2009-2014. J Med Virol 2016; 89:809-817. [DOI: 10.1002/jmv.24691] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Ernest A. Wandera
- Institute of Tropical Medicine, Center for Microbiology Research, KEMRI; KEMRI-Nagasaki University; Nairobi Kenya
| | - Shah Mohammad
- Institute of Tropical Medicine, Center for Microbiology Research, KEMRI; KEMRI-Nagasaki University; Nairobi Kenya
| | - Satoshi Komoto
- Department of Virology and Parasitology, School of Medicine; Fujita Health University; Toyoake Japan
| | - Yoshimasa Maeno
- Department of Virology and Parasitology, School of Medicine; Fujita Health University; Toyoake Japan
| | | | - Tomihiko Ide
- Department of Virology and Parasitology, School of Medicine; Fujita Health University; Toyoake Japan
| | - Cyrus Kathiiko
- Institute of Tropical Medicine, Center for Microbiology Research, KEMRI; KEMRI-Nagasaki University; Nairobi Kenya
| | - Erick Odoyo
- Institute of Tropical Medicine, Center for Microbiology Research, KEMRI; KEMRI-Nagasaki University; Nairobi Kenya
| | - Takao Tsuji
- Department of Microbiology, School of Medicine; Fujita Health University; Toyoake Japan
| | - Koki Taniguchi
- Department of Virology and Parasitology, School of Medicine; Fujita Health University; Toyoake Japan
| | - Yoshio Ichinose
- Institute of Tropical Medicine, Center for Microbiology Research, KEMRI; KEMRI-Nagasaki University; Nairobi Kenya
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153
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Arana A, Montes M, Jere KC, Alkorta M, Iturriza-Gómara M, Cilla G. Emergence and spread of G3P[8] rotaviruses possessing an equine-like VP7 and a DS-1-like genetic backbone in the Basque Country (North of Spain), 2015. INFECTION GENETICS AND EVOLUTION 2016; 44:137-144. [PMID: 27370571 DOI: 10.1016/j.meegid.2016.06.048] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/07/2016] [Accepted: 06/25/2016] [Indexed: 11/30/2022]
Abstract
In March 2015, an atypical G3P[8] rotavirus with an equine-like VP7 gene was detected in Gipuzkoa (Basque Country, Spain) and spread contributing significantly to the seasonal epidemic. The strain was identified in fecal samples collected from 68 patients, mainly children from rural and urban settings with acute gastroenteritis, representing 14.9% of the 455 rotavirus strains genotyped between July 2014 and June 2015. Seven patients (10.3%) were hospitalized. Full genome analysis of six of these strains revealed a DS-1-like genotype constellation, G3-P[8]-I2-R2-C2-M2-A2-N2-T2-E2-H2, and showed that most genome segments shared the highest nucleotide sequence identity with strains isolated in Japan, Thailand, Australia and the Philippines. The strains of Gipuzkoa were similar to novel G3P[8] reassortant rotaviruses with an equine-like VP7 gene and a DS-1-like genetic backbone that emerged in the Asia-Pacific Region in 2013. The study highlights the circulation of these atypical rotaviruses outside the Asia-Pacific Region of origin, and their emergence in a European Region. Due to their unusual genotype constellation, these strains pose a challenge for the rotavirus strain surveillance, since G-/P-typing, the most commonly used classification system, cannot identify this type of intergenogroup reassortants.
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Affiliation(s)
- Ainara Arana
- Microbiology Department, Donostia University Hospital - Biodonostia Health Research Institute, San Sebastián, Spain
| | - Milagrosa Montes
- Microbiology Department, Donostia University Hospital - Biodonostia Health Research Institute, San Sebastián, Spain; Biomedical Research Centre Network for Respiratory Diseases (CIBERES), San Sebastián, Spain
| | - Khuzwayo C Jere
- Institute of Infection & Global Health, University of Liverpool, Ronald Ross Building, Liverpool, UK; Malawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi, College of Medicine, Blantyre, Malawi
| | - Miriam Alkorta
- Microbiology Department, Donostia University Hospital - Biodonostia Health Research Institute, San Sebastián, Spain
| | - Miren Iturriza-Gómara
- Institute of Infection & Global Health, University of Liverpool, Ronald Ross Building, Liverpool, UK; NIHR Health Protection Research Unit in Gastrointestinal Infections, University of Liverpool, Liverpool, UK
| | - Gustavo Cilla
- Microbiology Department, Donostia University Hospital - Biodonostia Health Research Institute, San Sebastián, Spain; Biomedical Research Centre Network for Respiratory Diseases (CIBERES), San Sebastián, Spain.
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154
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Medici MC, Tummolo F, Martella V, Arcangeletti MC, De Conto F, Chezzi C, Magrì A, Fehér E, Marton S, Calderaro A, Bányai K. Whole genome sequencing reveals genetic heterogeneity of G3P[8] rotaviruses circulating in Italy. INFECTION GENETICS AND EVOLUTION 2016; 40:253-261. [DOI: 10.1016/j.meegid.2016.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/29/2016] [Accepted: 03/11/2016] [Indexed: 10/22/2022]
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155
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Hungerford D, Vivancos R, Read JM, Pitzer VE, Cunliffe N, French N, Iturriza-Gómara M. In-season and out-of-season variation of rotavirus genotype distribution and age of infection across 12 European countries before the introduction of routine vaccination, 2007/08 to 2012/13. ACTA ACUST UNITED AC 2016; 21:30106. [PMID: 26794258 DOI: 10.2807/1560-7917.es.2016.21.2.30106] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 09/14/2015] [Indexed: 12/21/2022]
Abstract
The EuroRotaNet surveillance network has conducted rotavirus genotype surveillance since 2007 in 16 European countries. Using epidemiological and microbiological data from 39,786 genotyped rotavirus-positive specimens collected between September 2007 and August 2013, we assessed genotype distribution and age distribution of rotavirus gastroenteritis (RVGE) cases in and out of peak season in 12 countries which were yet to implement routine rotavirus vaccination. In multinomial multivariate logistic regression, adjusting for year, country and age, the odds of infection caused by genotype-constellation 2 DS-1-like stains (adjusted multinomial odds ratio (aM-OR) = 1.25; 95% confidence interval (CI): 1.13-1.37; p < 0.001), mixed or untypable genotypes (aM-OR = 1.55; 95% CI: 1.40-1.72; p < 0.001) and less common genotypes (aM-OR = 2.11; 95% CI:1.78-2.51; p < 0.001) increased out of season relative to G1P[8]. Age varied significantly between seasons; the proportion of RVGE cases younger than 12 months in the United Kingdom increased from 34% in season to 39% out of season (aM-OR = 1.66; 95% CI: 1.20-2.30), and the proportion five years and older increased from 9% in season to 17% out of season (aM-OR = 2.53; 95% CI: 1.67-3.82). This study provides further understanding of the rotavirus ecology before vaccine introduction, which will help interpret epidemiological changes in countries introducing or expanding rotavirus vaccination programmes.
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Affiliation(s)
- Daniel Hungerford
- Department of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
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156
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Dulgheroff ACB, Silva GAVD, Naveca FG, Oliveira AGD, Domingues ALDS. Diversity of group A rotavirus genes detected in the Triângulo Mineiro region, Minas Gerais, Brazil. Braz J Microbiol 2016; 47:731-40. [PMID: 27266629 PMCID: PMC4927641 DOI: 10.1016/j.bjm.2016.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 12/08/2015] [Indexed: 12/15/2022] Open
Abstract
Group A rotaviruses are the main causative agent of infantile gastroenteritis. The segmented nature of the viral genome allows reassortment of genome segments, which can generate genetic variants. In this study, we characterized the diversity of the VP7, VP4 (VP8*), VP6, NSP4, and NSP5 genes of the rotaviruses that circulated from 2005 to 2011 in the Triângulo Mineiro (TM) region of Brazil. Samples with genotypes G2 (sublineages IVa-1 and IVa-3), G1 (sublineage I-A), G9 (lineage III), G12 (lineages II and III), G8 (lineage II), G3 (lineage III), P[4] (sublineages IVa and IVb), P[8] (sublineages P[8]-3.6, P[8]-3.3, and P[8]-3.1), I2 (lineage VII), E2 (lineages VI, XII, and X), and H2 (lineage III) were identified. The associations found in the samples were G1, G9, or G12 with P[8]-I1-E1-H1; G2 or G8 with P[4]-I2-E2-H2; G12 with I3-E3-H6; and G3 with P[4]-I2-E3-H3 (previously unreported combination). Reassortment events in G2P[4] strains and an apparent pattern of temporal segregation within the lineages were observed. Five TM samples contained genes that exhibited high nucleotide and amino acid identities with strains of animal origin. The present study includes a period of pre- and post-introduction of rotavirus vaccination in all Brazilian territories, thereby serving as a basis for monitoring changes in the genetic constitution of rotaviruses. The results also contribute to the understanding of the diversity and evolution of rotaviruses in a global context.
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Affiliation(s)
- Ana Carolina Bernardes Dulgheroff
- Laboratory of Microbiology, Institute of Biological and Natural Science, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil; Health Technical School, Health Science Center, Federal University of Paraíba, João Pessoa, Paraíba, Brazil.
| | - George Allan Villarouco da Silva
- Laboratory of Infectious Disease Ecology in the Amazon, Leonidas e Maria Deane Institute, Oswaldo Cruz Foundation, Manaus, Amazonas, Brazil
| | - Felipe Gomes Naveca
- Laboratory of Infectious Disease Ecology in the Amazon, Leonidas e Maria Deane Institute, Oswaldo Cruz Foundation, Manaus, Amazonas, Brazil
| | - Adriana Gonçalves de Oliveira
- Laboratory of Microbiology, Institute of Biological and Natural Science, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - André Luiz da Silva Domingues
- Laboratory of Microbiology, Institute of Biological and Natural Science, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
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157
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Li K, Lin XD, Huang KY, Zhang B, Shi M, Guo WP, Wang MR, Wang W, Xing JG, Li MH, Hong WS, Holmes EC, Zhang YZ. Identification of novel and diverse rotaviruses in rodents and insectivores, and evidence of cross-species transmission into humans. Virology 2016; 494:168-77. [PMID: 27115729 PMCID: PMC7173014 DOI: 10.1016/j.virol.2016.04.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/13/2016] [Accepted: 04/15/2016] [Indexed: 01/08/2023]
Abstract
Rotaviruses are an important cause of severe diarrheal illness in children globally. We characterized rotaviruses sampled in humans, insectivores (shrews) and rodents from urban and rural regions of Zhejiang province, China. Phylogenetic analyses revealed seven genotypic constellations of human rotaviruses with six different combinations of G and P genotypes – G3P[8] (50.06%), G9P[8] (36.16%), G1P[8] (8.92%), G2P[4] (4.63%), G3P[3] (0.12%), and G3P[9] (0.12%). In rodents and shrews sampled from the same locality we identified a novel genotype constellation (G32-P[46]-I24-R18-C17-M17-A28-N17-T19-E24-H19), a novel P genotype (P[45]), and two different AU-1-like rotaviruses associated with a G3P[3] genotype combination. Of particular note was a novel rotavirus from a human patient that was closely related to viruses sampled from rodents in the same region, indicative of a local species jump. In sum, these data are suggestive of the cross-species transmission of rodent rotaviruses into humans and for reassortment among human and animal rotaviruses. Rotaviruses are an important cause of severe diarrheal illness. Although rotaviruses are associated with a diverse range of animals, relatively little attention has been directed toward rotaviruses in rodents. However, as rodents often live in close proximity to humans and domestic animals, rodents may play an important role in the cross-species transmission of rotaviruses among animals and perhaps directly or indirectly to humans. Our data suggest the direct spill-over of rodent rotaviruses in human populations, as well as the reassortment between human and zoonotic rotaviruses.
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Affiliation(s)
- Kun Li
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang Province, China
| | - Xian-Dan Lin
- Wenzhou Center for Disease Control and Prevention, Wenzhou, Zhejiang Province, China
| | - Kai-Yu Huang
- The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Bing Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China
| | - Mang Shi
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Marie Bashir Institute for Infectious Diseases and Biosecurity, Charles Perkins Centre, School of Life and Environmental Sciences and Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Wen-Ping Guo
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang Province, China
| | - Miao-Ruo Wang
- Longquan Center for Disease Control and Prevention, Longquan, Zhejiang Province, China
| | - Wen Wang
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang Province, China
| | - Jian-Guang Xing
- Wencheng Center for Disease Control and Prevention, Wencheng, Zhejiang Province, China
| | - Ming-Hui Li
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang Province, China
| | - Wang-Sheng Hong
- Ruian Center for Disease Control and Prevention, Ruian, Zhejiang Province, China
| | - Edward C Holmes
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Marie Bashir Institute for Infectious Diseases and Biosecurity, Charles Perkins Centre, School of Life and Environmental Sciences and Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Yong-Zhen Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Changping, Beijing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang Province, China.
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158
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Luchs A, Cilli A, Morillo SG, Gregório DDS, de Souza KAF, Vieira HR, Fernandes ADM, Carmona RDCC, Timenetsky MDCST. Detection of the emerging rotavirus G12P[8] genotype at high frequency in brazil in 2014: Successive replacement of predominant strains after vaccine introduction. Acta Trop 2016; 156:87-94. [PMID: 26748357 DOI: 10.1016/j.actatropica.2015.12.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 12/14/2015] [Accepted: 12/19/2015] [Indexed: 12/12/2022]
Abstract
The continuum characterization of rotavirus (RVA) genotypes is essential to understand how vaccine introduction could impact virus epidemiology. In the present study, an unexpected rapid changing pattern of RVA genotypes distribution in Brazilian population during three followed seasons is described. From January/2012 to December/2014, a total of 3441 fecal specimens were collected from collaborating centers across Southern, Southeastern and Midwest of Brazil. All specimens were screened for RVA using ELISA, and genotyped by RT-PCR. Differences in proportions were tested using Chi-Squares. A p-value of less than 0.05 was considered statistically significant. RVA was detected in 19.7% (677/3441). Among RVA positive cases (n=677), a total of 652 (96.3%) samples were successfully amplified by RT-PCR. G3P[8] remained prevalent in 2012 (37.6%, 69/185) and 2013 (40.1%, 74/186) (χ(2)=0.107, p=0.743), but declined markedly in 2014 (3.5%, 10/281) (χ(2)=71.770, p=0.000). G12P[8] was second highest strain in 2012 (22.7%, 42/185), decrease rapidly in 2013 (2.7%, 5/186) (χ(2)=26.224, p=0.000) and re-emerged as the predominant genotype in 2014 (86.6%, 243/281) (χ(2)=118.299, p=0.000). From July/2014, G12P[8] was the single genotype detected in all regions studied. The sudden emergence, spread and predominance of G12P[8] strain in Brazil, raised the hypothesis of a possible G12 outbreak being in progress. Nationally, the long term decline in gastroenteritis hospitalization observed in the country after RVA vaccine introduction was confirmed. Nevertheless, the sharp increase in diarrhea hospitalization prevalence from 2013 to 2014 observed in Southern and Southeastern regions is consistent with what appears to be an outbreak of G12P[8]. Continued surveillance is needed to verify the effectiveness of the RotarixTM vaccine in Brazil together with potential emergence of unusual genotypes.
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Affiliation(s)
- Adriana Luchs
- Enteric Disease Laboratory, Virology Centre, Adolfo Lutz Institute, São Paulo, Brazil.
| | - Audrey Cilli
- Enteric Disease Laboratory, Virology Centre, Adolfo Lutz Institute, São Paulo, Brazil
| | | | | | | | - Heloísa Rosa Vieira
- Enteric Disease Laboratory, Virology Centre, Adolfo Lutz Institute, São Paulo, Brazil
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159
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Jin HI, Lee YM, Choi YJ, Jeong SJ. Recent viral pathogen in acute gastroenteritis: a retrospective study at a tertiary hospital for 1 year. KOREAN JOURNAL OF PEDIATRICS 2016; 59:120-5. [PMID: 27186218 PMCID: PMC4865622 DOI: 10.3345/kjp.2016.59.3.120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/12/2015] [Accepted: 10/28/2015] [Indexed: 11/27/2022]
Abstract
PURPOSE Viral gastroenteritis among children is mainly caused by rotavirus, norovirus, astrovirus, or adenovirus strains. However, changing socioeconomic conditions and a rotavirus vaccination program may be affecting the prevalence of these viral infections. Therefore, we aimed to elucidate the season-specific trends in viral infections for facilitating prophylaxis and surveillance in our region. METHODS We evaluated 345 pediatric patients (203 males, 142 females; age, 1 month to 16 years) who visited the CHA Bundang Medical Center because of gastroenteric symptoms between June 2014 and May 2015. The specimens were simultaneously tested for norovirus, rotavirus, astrovirus, and adenovirus via multiplex reverse transcription polymerase chain reaction. Clinical characteristics of patients were analyzed retrospectively. RESULTS The most common virus was norovirus, followed by rotavirus, adenovirus, and astrovirus. Of all viral infections, 45.2% occurred mainly between 6 and 24 months of age; in particular, norovirus infection mostly occurred in all age groups except those below 6 months of age, when rotavirus was most prevalent. In addition, seasonal variation was observed, such as norovirus infection from December to February, rotavirus infection from February to April, and adenovirus infection from July to October. CONCLUSION Our results showed that the most common cause of acute pediatric viral gastroenteritis had changed from rotavirus to norovirus in our patients, because of effective rotaviral vaccination. We recommend the management of food and personal hygiene in accordance with age or seasons as well as active vaccination for preventing viral gastroenteritis.
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Affiliation(s)
- Hye Il Jin
- Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Yoo Mi Lee
- Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - You Jin Choi
- Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Su Jin Jeong
- Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea
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160
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Langa JS, Thompson R, Arnaldo P, Resque HR, Rose T, Enosse SM, Fialho A, de Assis RMS, da Silva MFM, Leite JPG. Epidemiology of rotavirus A diarrhea in Chókwè, Southern Mozambique, from February to September, 2011. J Med Virol 2016; 88:1751-8. [PMID: 27003797 DOI: 10.1002/jmv.24531] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2016] [Indexed: 11/12/2022]
Abstract
Acute diarrhea disease caused by Rotaviruses A (RVA) is still the leading cause of morbidity and mortality in children ≤5 years old in developing countries. An exploratory cross-sectional study was conducted between February and September, 2011 to determine the proportion of acute diarrhea caused by RVA. A total of 254 stool specimens were collected from children ≤5 years old with acute diarrhea, including outpatients (222 children) and inpatients (32 children), in three local health centers in Chókwè District, Gaza Province, South of Mozambique. RVA antigens were detected using enzyme immunoassay (EIA); the RVA G (VP7) and P (VP4) genotypes were determined by RT-PCR or analysis sequencing. Sixty (24%) out of 254 fecal specimens were positive for RVA by EIA; being 58 (97%) from children ≤2 years of age. RVA prevalence peaks in June and July (coldest and drier months) and the G[P] binary combination observed were G12P[8] (57%); G1P[8] (9%); G12P[6] (6%); and 2% for each of the following genotypes: G1P[6], G2P[6] G4P[6], and G9P[8]. Non-Typeable (NT) G and/or P genotypes were observed as follows: G12P [NT] (6%); G1P [NT], G3P[NT] and GNTP[NT] (4%). Considering the different GP combinations, G12 represented 67% of the genotypes. This is the first data showing the diversity of RVA genotypes in Mozambique highlighting the epidemiological importance of these viruses in acute diarrhea cases in children ≤2 years old. In addition, these findings will provide a baseline data before the introduction of the RVA monovalent (Rotarix(®) ) vaccine in the National Immunization Program in September 2015. J. Med. Virol. 88:1751-1758, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jerónimo S Langa
- Chokwe Health Research and Training Centre (CITSC), National Institute of Health, Maputo, Mozambique.,Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - Ricardo Thompson
- Chokwe Health Research and Training Centre (CITSC), National Institute of Health, Maputo, Mozambique
| | - Paulo Arnaldo
- Chokwe Health Research and Training Centre (CITSC), National Institute of Health, Maputo, Mozambique
| | - Hugo Reis Resque
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil.,Virology Section, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | - Tatiana Rose
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - Sonia M Enosse
- Chokwe Health Research and Training Centre (CITSC), National Institute of Health, Maputo, Mozambique
| | - Alexandre Fialho
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | | | - Marcelle Figueira Marques da Silva
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil.,Faculty of Biology, Laboratory of Virus Contaminants of Water and Food, University of Barcelona, Barcelona, Spain
| | - José Paulo Gagliardi Leite
- Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
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161
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Esteves A, Nordgren J, Pereira J, Fortes F, Dimbu R, Saraiva N, Mendes C, Istrate C. Molecular epidemiology of rotavirus in four provinces of Angola before vaccine introduction. J Med Virol 2016; 88:1511-20. [DOI: 10.1002/jmv.24510] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/29/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Aida Esteves
- Global Health and Tropical Medicine (GHTM), Medical Microbiology Unit, Institute of Hygiene and Tropical Medicine; NOVA University of Lisbon; Lisbon Portugal
| | - Johan Nordgren
- Medical Faculty, Division of Molecular Virology, Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
| | - Joana Pereira
- Global Health and Tropical Medicine (GHTM), Medical Microbiology Unit, Institute of Hygiene and Tropical Medicine; NOVA University of Lisbon; Lisbon Portugal
| | - Filomeno Fortes
- Department of Disease Control, National Institute of Public Health; National Program for Malaria Control; Luanda Angola
| | - Rafael Dimbu
- Department of Disease Control, National Institute of Public Health; National Program for Malaria Control; Luanda Angola
| | - Nilton Saraiva
- Department of Disease Control, National Institute of Public Health; National Program for Malaria Control; Luanda Angola
| | - Cristina Mendes
- Global Health and Tropical Medicine (GHTM), Medical Microbiology Unit, Institute of Hygiene and Tropical Medicine; NOVA University of Lisbon; Lisbon Portugal
| | - Claudia Istrate
- Global Health and Tropical Medicine (GHTM), Medical Microbiology Unit, Institute of Hygiene and Tropical Medicine; NOVA University of Lisbon; Lisbon Portugal
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162
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Do LP, Nakagomi T, Otaki H, Agbemabiese CA, Nakagomi O, Tsunemitsu H. Phylogenetic inference of the porcine Rotavirus A origin of the human G1 VP7 gene. INFECTION GENETICS AND EVOLUTION 2016; 40:205-213. [PMID: 26961591 DOI: 10.1016/j.meegid.2016.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 02/25/2016] [Accepted: 03/01/2016] [Indexed: 01/15/2023]
Abstract
Rotavirus A (RVA) is an important cause of acute gastroenteritis in children worldwide. The most common VP7 genotype of human RVA is G1, but G1 is rarely detected in porcine strains. To understand the evolutionary relationships between human and porcine G1 VP7 genes, we sequenced the VP7 genes of three Japanese G1 porcine strains; the first two (PRV2, S80B) were isolated in 1980 and the third (Kyusyu-14) was isolated in 2001. Then, we performed phylogenetic and in-silico structural analyses. All three VP7 sequences clustered into lineage VI, and the mean nucleotide sequence identity between any pair of porcine G1 VP7 sequences belonging to lineage VI was 91.9%. In contrast, the mean nucleotide sequence identity between any pair of human G1 VP7 sequences belonging to lineages I-V was 95.5%. While the mean nucleotide sequence identity between any pair of porcine lineage VI strain and human lineage I-V strain was 85.4%, the VP7 genes of PRV2 and a rare porcine-like human G1P[6] strain (AU19) were 98% identical, strengthening the porcine RVA origin of AU19. The phylogenetic tree suggests that human G1 VP7 genes originated from porcine G1 VP7 genes. The time of their most recent common ancestor was estimated to be 1948, and human and porcine RVA strains evolved along independent pathways. In-silico structural analyses identified 7 amino acid residues within the known neutralisation epitopes that show differences in electric charges and shape between different porcine and human G1 strains. When compared with much divergent porcine G1 VP7 lineages, monophyletic, less divergent human G1 VP7 lineages support the hypothesis that all human G1 VP7 genes included in this study originated from a rare event of a porcine RVA transmitting to humans that was followed by successful adaptation to the human host. By contrast, AU19 represents interspecies transmission that terminated in dead-end infection.
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Affiliation(s)
- Loan Phuong Do
- Department of Hygiene and Molecular Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; Department of Virology, National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Toyoko Nakagomi
- Department of Hygiene and Molecular Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; Centre for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Hiroki Otaki
- Centre for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Chantal Ama Agbemabiese
- Department of Hygiene and Molecular Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Osamu Nakagomi
- Department of Hygiene and Molecular Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; Centre for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
| | - Hiroshi Tsunemitsu
- Dairy Hygiene Research Division, Hokkaido Research Station, National Institute of Animal Health, Sapporo, Hokkaido, Japan
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163
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Pitzer VE, Bilcke J, Heylen E, Crawford FW, Callens M, De Smet F, Van Ranst M, Zeller M, Matthijnssens J. Did Large-Scale Vaccination Drive Changes in the Circulating Rotavirus Population in Belgium? Sci Rep 2015; 5:18585. [PMID: 26687288 PMCID: PMC4685644 DOI: 10.1038/srep18585] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 11/20/2015] [Indexed: 12/13/2022] Open
Abstract
Vaccination can place selective pressures on viral populations, leading to changes in the distribution of strains as viruses evolve to escape immunity from the vaccine. Vaccine-driven strain replacement is a major concern after nationwide rotavirus vaccine introductions. However, the distribution of the predominant rotavirus genotypes varies from year to year in the absence of vaccination, making it difficult to determine what changes can be attributed to the vaccines. To gain insight in the underlying dynamics driving changes in the rotavirus population, we fitted a hierarchy of mathematical models to national and local genotype-specific hospitalization data from Belgium, where large-scale vaccination was introduced in 2006. We estimated that natural- and vaccine-derived immunity was strongest against completely homotypic strains and weakest against fully heterotypic strains, with an intermediate immunity amongst partially heterotypic strains. The predominance of G2P[4] infections in Belgium after vaccine introduction can be explained by a combination of natural genotype fluctuations and weaker natural and vaccine-induced immunity against infection with strains heterotypic to the vaccine, in the absence of significant variation in strain-specific vaccine effectiveness against disease. However, the incidence of rotavirus gastroenteritis is predicted to remain low despite vaccine-driven changes in the distribution of genotypes.
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Affiliation(s)
- Virginia E Pitzer
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, United States of America.,Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Joke Bilcke
- Centre for Health Economics Research &Modeling of Infectious Diseases (CHERMID), Vaccine and Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Antwerp, Belgium
| | - Elisabeth Heylen
- KU Leuven - University of Leuven, Department of Microbiology and Immunology, Laboratory for Clinical and Epidemiological virology, Rega Institute for Medical Research, Leuven, Belgium
| | - Forrest W Crawford
- Department of Biostatistics, Yale School of Public Health, and Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, United States of America
| | - Michael Callens
- National Alliance of Christian Sickness Funds, Brussels, Belgium
| | - Frank De Smet
- National Alliance of Christian Sickness Funds, Brussels, Belgium.,KU Leuven - University of Leuven, Department of Public Health and Primary Care, Environment and Health, Leuven, Belgium
| | - Marc Van Ranst
- KU Leuven - University of Leuven, Department of Microbiology and Immunology, Laboratory for Clinical and Epidemiological virology, Rega Institute for Medical Research, Leuven, Belgium
| | - Mark Zeller
- KU Leuven - University of Leuven, Department of Microbiology and Immunology, Laboratory for Clinical and Epidemiological virology, Rega Institute for Medical Research, Leuven, Belgium
| | - Jelle Matthijnssens
- KU Leuven - University of Leuven, Department of Microbiology and Immunology, Laboratory for Clinical and Epidemiological virology, Rega Institute for Medical Research, Leuven, Belgium
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164
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Neves MAO, Pinheiro HHC, Silva RSU, Linhares AC, Silva LD, Gabbay YB, Silva MCM, Loureiro ECB, Soares LS, Mascarenhas JDP. High prevalence of G12P[8] rotavirus strains in Rio Branco, Acre, Western Amazon, in the post-rotavirus vaccine introduction period. J Med Virol 2015; 88:782-9. [PMID: 26466923 DOI: 10.1002/jmv.24404] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2015] [Indexed: 12/11/2022]
Abstract
The present study aimed to provide a molecular characterization of circulating rotavirus (RVA) strains in Rio Branco, Acre, in the post-rotavirus vaccination period, particularly with regard to the emerging, increasingly prevalent G12P[8] genotype. A total of 488 fecal specimens from diarrheic and non-diarrheic children were obtained between January and December 2012. RVA detection was initially performed using enzyme-linked immunosorbent assay (ELISA) method, followed by reverse-transcription polymerase chain reaction (RT-PCR) using specific primers. RVA was detected in 18.3% (44/241) of the children with acute diarrhea and in 1.2% (3/247) of the non-diarrheic children (P < 0.001), with overall RVA-positivity of 9.6% (47/488). The most common genotype was G2P[4] with 43.2% (19/44) of the diarrheic cases, followed by G12P[8] (27.3%, 12/44), G3P[6] (18.2%, 8/44), G3P[8] (4.5%, 2/44), and G12P[6] (2.3%, 1/44). G12 samples belonged to lineage III and were from children aged 4-52 months. All of these children had acute diarrhea associated with fever (83.3%, 10/12) and vomiting (66.7%, 8/12). Most of the cases occurred in August (58.3%, 7/12), 75% (9/12) of which having received the full vaccination scheme with Rotarix™. For the first time G12 was reported at relative high prevalence in Brazil. Our findings warrant further monitoring studies on the molecular characterization of circulating RVA strains after rotavirus vaccine introduction in Brazil and elsewhere, since the occurrence of either unusual our emerging genotypes may pose a challenge to vaccination strategies.
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Affiliation(s)
- Mayara A O Neves
- Center for Biological and Health Sciences, University of State of Pará, Pará, Brazil
| | | | - Rita S U Silva
- Municipality Secretary of Health of Rio Branco, Acre, Brazil
| | - Alexandre C Linhares
- Evandro Chagas Institute, Health Surveilance Secretariat, Ministry of Health, Pará, Brazil
| | - Luciana D Silva
- Evandro Chagas Institute, Health Surveilance Secretariat, Ministry of Health, Pará, Brazil
| | - Yvone B Gabbay
- Evandro Chagas Institute, Health Surveilance Secretariat, Ministry of Health, Pará, Brazil
| | - Mônica C M Silva
- Evandro Chagas Institute, Health Surveilance Secretariat, Ministry of Health, Pará, Brazil
| | - Edvaldo C B Loureiro
- Evandro Chagas Institute, Health Surveilance Secretariat, Ministry of Health, Pará, Brazil
| | - Luana S Soares
- Evandro Chagas Institute, Health Surveilance Secretariat, Ministry of Health, Pará, Brazil
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165
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Dóró R, Farkas SL, Martella V, Bányai K. Zoonotic transmission of rotavirus: surveillance and control. Expert Rev Anti Infect Ther 2015; 13:1337-50. [DOI: 10.1586/14787210.2015.1089171] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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166
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Bányai K, Gentsch J. Special issue on 'genetic diversity and evolution of rotavirus strains: possible impact of global immunization programs'. INFECTION GENETICS AND EVOLUTION 2015; 28:375-6. [PMID: 25471676 DOI: 10.1016/j.meegid.2014.11.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Krisztián Bányai
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Jon Gentsch
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
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167
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Rotavirus vaccines: a story of success. Clin Microbiol Infect 2015; 21:735-43. [DOI: 10.1016/j.cmi.2015.01.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 01/28/2015] [Accepted: 01/29/2015] [Indexed: 11/19/2022]
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168
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Nyaga MM, Jere KC, Esona MD, Seheri ML, Stucker KM, Halpin RA, Akopov A, Stockwell TB, Peenze I, Diop A, Ndiaye K, Boula A, Maphalala G, Berejena C, Mwenda JM, Steele AD, Wentworth DE, Mphahlele MJ. Whole genome detection of rotavirus mixed infections in human, porcine and bovine samples co-infected with various rotavirus strains collected from sub-Saharan Africa. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2015; 31:321-34. [PMID: 25701122 PMCID: PMC4361293 DOI: 10.1016/j.meegid.2015.02.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 01/27/2015] [Accepted: 02/10/2015] [Indexed: 01/13/2023]
Abstract
Group A rotaviruses (RVA) are among the main global causes of severe diarrhea in children under the age of 5years. Strain diversity, mixed infections and untypeable RVA strains are frequently reported in Africa. We analysed rotavirus-positive human stool samples (n=13) obtained from hospitalised children under the age of 5years who presented with acute gastroenteritis at sentinel hospital sites in six African countries, as well as bovine and porcine stool samples (n=1 each), to gain insights into rotavirus diversity and evolution. Polyacrylamide gel electrophoresis (PAGE) analysis and genotyping with G-(VP7) and P-specific (VP4) typing primers suggested that 13 of the 15 samples contained more than 11 segments and/or mixed G/P genotypes. Full-length amplicons for each segment were generated using RVA-specific primers and sequenced using the Ion Torrent and/or Illumina MiSeq next-generation sequencing platforms. Sequencing detected at least one segment in each sample for which duplicate sequences, often having distinct genotypes, existed. This supported and extended the PAGE and RT-PCR genotyping findings that suggested these samples were collected from individuals that had mixed rotavirus infections. The study reports the first porcine (MRC-DPRU1567) and bovine (MRC-DPRU3010) mixed infections. We also report a unique genome segment 9 (VP7), whose G9 genotype belongs to lineage VI and clusters with porcine reference strains. Previously, African G9 strains have all been in lineage III. Furthermore, additional RVA segments isolated from humans have a clear evolutionary relationship with porcine, bovine and ovine rotavirus sequences, indicating relatively recent interspecies transmission and reassortment. Thus, multiple RVA strains from sub-Saharan Africa are infecting mammalian hosts with unpredictable variations in their gene segment combinations. Whole-genome sequence analyses of mixed RVA strains underscore the considerable diversity of rotavirus sequences and genome segment combinations that result from a complex evolutionary history involving multiple host species.
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Affiliation(s)
- Martin M Nyaga
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa.
| | - Khuzwayo C Jere
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa; Institute of Infection and Global Health, Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, United Kingdom.
| | - Mathew D Esona
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa; Gastroenteritis and Respiratory Viruses Laboratory Branch, Division of Viral Diseases, NCIRD, CDC, Atlanta, GA, USA.
| | - Mapaseka L Seheri
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa.
| | | | | | | | | | - Ina Peenze
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa.
| | - Amadou Diop
- Albert Royer National Paediatric Hospital Laboratory, Dakar, Senegal.
| | - Kader Ndiaye
- Unite de Virologie Medicale Institut Pasteur, Dakar, Senegal.
| | - Angeline Boula
- Mother and Child Center, Chantal Biya Foundation, Yaoundé, Cameroon.
| | - Gugu Maphalala
- The National Clinical Laboratory Service, Mbabane, Swaziland.
| | - Chipo Berejena
- University of Zimbabwe, Department of Medical Microbiology, Virology Section, Harare, Zimbabwe.
| | - Jason M Mwenda
- World Health Organization, Regional Office for Africa, Brazzaville, People's Republic of Congo.
| | - A Duncan Steele
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa; Enteric and Diarrhoeal Diseases Programme, Global Health Program, Bill and Melinda Gates Foundation, Seattle, WA, USA.
| | | | - M Jeffrey Mphahlele
- South African Medical Research Council/Diarrhoeal Pathogens Research Unit, Faculty of Health Sciences, Sefako Makgatho Health Sciences University, Medunsa, Pretoria, South Africa.
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169
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Ndze VN, Esona MD, Achidi EA, Gonsu KH, Dóró R, Marton S, Farkas S, Ngeng MB, Ngu AF, Obama-Abena MT, Bányai K. Full genome characterization of human Rotavirus A strains isolated in Cameroon, 2010–2011: Diverse combinations of the G and P genes and lack of reassortment of the backbone genes. INFECTION GENETICS AND EVOLUTION 2014; 28:537-60. [DOI: 10.1016/j.meegid.2014.10.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 10/09/2014] [Accepted: 10/11/2014] [Indexed: 12/17/2022]
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170
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Dóró R, Mihalov-Kovács E, Marton S, László B, Deák J, Jakab F, Juhász Á, Kisfali P, Martella V, Melegh B, Molnár P, Sántha I, Schneider F, Bányai K. Large-scale whole genome sequencing identifies country-wide spread of an emerging G9P[8] rotavirus strain in Hungary, 2012. INFECTION GENETICS AND EVOLUTION 2014; 28:495-512. [PMID: 25239526 DOI: 10.1016/j.meegid.2014.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 09/03/2014] [Accepted: 09/11/2014] [Indexed: 11/19/2022]
Abstract
With the availability of rotavirus vaccines routine strain surveillance has been launched or continued in many countries worldwide. In this study relevant information is provided from Hungary in order to extend knowledge about circulating rotavirus strains. Direct sequencing of the RT-PCR products obtained by VP7 and VP4 genes specific primer sets was utilized as routine laboratory method. In addition we explored the advantage of random primed RT-PCR and semiconductor sequencing of the whole genome of selected strains. During the study year, 2012, we identified an increase in the prevalence of G9P[8] strains across the country. This genotype combination predominated in seven out of nine study sites (detection rates, 45-83%). In addition to G9P[8]s, epidemiologically major strains included genotypes G1P[8] (34.2%), G2P[4] (13.5%), and G4P[8] (7.4%), whereas unusual and rare strains were G3P[8] (1%), G2P[8] (0.5%), G1P[4] (0.2%), G3P[4] (0.2%), and G3P[9] (0.2%). Whole genome analysis of 125 Hungarian human rotaviruses identified nine major genotype constellations and uncovered both intra- and intergenogroup reassortment events in circulating strains. Intergenogroup reassortment resulted in several unusual genotype constellations, including mono-reassortant G1P[8] and G9P[8] strains whose genotype 1 (Wa-like) backbone gene constellations contained DS1-like NSP2 and VP3 genes, respectively, as well as, a putative bovine-feline G3P[9] reassortant strain. The conserved genomic constellations of epidemiologically major genotypes suggested the clonal spread of the re-emerging G9P[8] genotype and several co-circulating strains (e.g., G1P[8] and G2P[4]) in many study sites during 2012. Of interest, medically important G2P[4] strains carried bovine-like VP1 and VP6 genes in their genotype constellation. No evidence for vaccine associated selection, or, interaction between wild-type and vaccine strains was obtained. In conclusion, this study reports the reemergence of G9P[8] strains across the country and indicates the robustness of whole genome sequencing in routine rotavirus strain surveillance.
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Affiliation(s)
- Renáta Dóró
- Hungarian Academy of Sciences, Budapest, Hungary
| | | | | | | | | | | | | | | | | | | | - Péter Molnár
- Combined Szent István and Szent László Hospital, Budapest, Hungary
| | - Ildikó Sántha
- Hungarian National Public Health and Medical Officer Service, Miskolc, Hungary
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