Fifty-three rotavirus-positive fecal specimens from children with diarrhea admitted to a Rio de Janeiro, Brazil, children's hospital between January 1997 and December 1998 were characterized for P and G types by using reverse transcription-PCR. Genotype P[4]G2 accounted for 21% of isolates, while uncommon genotypes P[8]G9, P[6]G9, and P[4]G9 accounted for 13% of the isolates
: Our data demonstrate the reemergence of RV-A genotype G2P[4] in Brazil from 2005 to 2008, and that the rate of G2P[4] detection decreased in 2009, probably reflecting natural oscillations of RV-A genotypes.
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