Emergence of G9 P[6] human rotaviruses in Argentina: phylogenetic relationships among G9 strains.

ABSTRACT: Because rotavirus diarrhea can be reduced through vaccination and because current vaccine candidates provide protection against only the most common G antigenic types (G1 to G4), detection of uncommon G types is one of the main goals of rotavirus surveillance. After a 2-year nationwide rotavirus surveillance study in Argentina concluded, surveillance was continued and an increase of G9 prevalence in several Argentine cities was detected. During this period G9 strains predominated in the south, and a gradient of decreasing G9 prevalence was observed from south to north (41 to 0%). Sequence analysis of gene 9, encoding the G antigen, showed that Argentine strains cluster with most G9 isolates from other countries, showing less than 2% nucleotide divergence among them, but are distinctive fro

SUBMITTER: Bok K 

PROVIDER: S-EPMC88481 | biostudies-literature | 2001 Nov

REPOSITORIES: biostudies-literature