Premium
Molecular epidemiology of group a rotavirus among children admitted to hospital in Salto, Uruguay, 2011‐2012: First detection of the emerging genotype G12
Author(s) -
Tort Luis Fernando López,
Victoria Matías,
Lizasoain A Andrés,
Castells Matías,
Maya Leticia,
Gómez Mariela Martínez,
Arreseigor Edit,
López Patricia,
Cristina Juan,
Leite Jose Paulo Gagliardi,
Colina Rodney
Publication year - 2015
Publication title -
journal of medical virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 121
eISSN - 1096-9071
pISSN - 0146-6615
DOI - 10.1002/jmv.24123
Subject(s) - epidemiology , genotype , virology , rotavirus , molecular epidemiology , medicine , pediatrics , virus , biology , genetics , gene
Group A rotavirus (RVA) is the most important etiologic agent of infant acute gastroenteritis (AGE) worldwide. Detection and molecular characterization of RVA in Salto department, Northwestern region of Uruguay, was conducted on 175 clinical samples, being 153 stool and 22 vomit samples, collected from hospitalized children with AGE, between 0–15 years old, from two hospitals of Salto city during 2011 and 2012. RVA was detected and genotyped by seminested multiplex RT‐PCR in order to determine G‐ and P‐genotypes. Positive samples were sequenced and phylogenetic analyses were carried out in order to determine lineages and sub‐lineages. RVA were detected in 64 (37%) of the samples and the G and P genotypes observed were: 6% G1P[8], 23% G2P[4]/G2P[X]/GXP[4], 23% G3P[8]/G3P[X], 14% G12P[8]/G12P[X], 16% GXP[8], 1,5% G12P[9], 3% G2P[4]/[8], and 16% non‐typeable. VP7 and VP4 genotypes related to DS‐1 like gene constellation were prevalent during 2011 and those VP7 and VP4 genotypes related to Wa‐like constellation were prevalent during 2012 (mainly represented by G3P[8]). Interestingly, RVA was detected in vomit samples in a high prevalence (41%). RVA was observed mainly in the age group between 1 and 5 years old (75% of the cases), and seasonality with a high detection rate in winter season was observed for the two consecutive years of surveillance. To our knowledge, this study represents the first detection and molecular characterization of RVA in Salto department, Northwestern region of Uruguay; and the first identification of the emerging genotype G12 in the country. J. Med. Virol. 87:754–763, 2015 . © 2015 Wiley Periodicals, Inc.