Surveillance of rotavirus strains in Rio de Janeiro, Brazil, from 1997 to 1999.
One hundred fifty-seven (23%; n = 678) rotavirus-positive stool samples were collected between March 1997 and December 1999 in the cites of Rio de Janeiro and Niterói. Rotaviruses in 143 (91%) samples were genotyped by reverse transcription-PCR for G and/or P specificity. Rotaviruses in the majority of G-P-typeable samples (73.3%; 74 of 101) were identified as having globally common genotypes G1P[8], G2P[4], G3P[8], and G4P[8]. Unusual strains such as G1P[9], G2[P8], G3P[9], and G9P[4] strains were detected in 8.9% (9 of 101) of the samples. Genotypes G9P[8], G9P[6], and a mixture of G9 and other G or P types represented 15.9% (25 of 157) of the isolates. Mixed infections were detected in 25 (15.9%) samples, and rotaviruses in 15 samples (9.6%) were not typed.
Santos
Norma
N
Departamento de Virologia, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ 21.941-590, Brazil. nsantos@micro.ufrj.br
Soares
Caroline C
CC
Volotão
Eduardo M
EM
Albuquerque
Maria Carolina M
MC
Hoshino
Yasutaka
Y
D000818:Animals; D001938:Brazil / Q000453:epidemiology; D002460:Cell Line; D002675:Child, Preschool; D005243:Feces / Q000821:virology; D005838:Genotype; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011159:Population Surveillance; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012401:Rotavirus / Q000145:classification* / Q000235:genetics* / Q000254:growth & development; D012400:Rotavirus Infections / Q000453:epidemiology* / Q000821:virology