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Provedor de dados:  BJM
País:  Brazil
Título:  Diversity of group A rotavirus genes detected in the Triângulo Mineiro region, Minas Gerais, Brazil
Autores:  Dulgheroff,Ana Carolina Bernardes
Silva,George Allan Villarouco da
Naveca,Felipe Gomes
Oliveira,Adriana Gonçalves de
Domingues,André Luiz da Silva
Data:  2016-09-01
Ano:  2016
Palavras-chave:  Rotavirus
Infantile diarrhea
Genetic variation
Resumo:  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.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Sociedade Brasileira de Microbiologia
Relação:  10.1016/j.bjm.2016.04.012
Formato:  text/html
Fonte:  Brazilian Journal of Microbiology v.47 n.3 2016
Direitos:  info:eu-repo/semantics/openAccess

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