Autor(es): Santos, Norma ; Volotão, Eduardo de Mello ; Soares, Caroline Cordeiro ; Campos, Gubio Soares ; Sardi, Silvia Inês ; Hoshino, Yasutaka ; Santos, Norma ; Volotão, Eduardo de Mello ; Soares, Caroline Cordeiro ; Campos, Gubio Soares ; Sardi, Silvia Inês ; Hoshino, Yasutaka
Data: 2011
Origem: Oasisbr
p. 4064–4069
Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2011-10-06T13:15:52Z No. of bitstreams: 1 0164-05.pdf: 133068 bytes, checksum: e402fac305525880f31683e48711b96a (MD5)
Made available in DSpace on 2011-10-06T13:15:52Z (GMT). No. of bitstreams: 1 0164-05.pdf: 133068 bytes, checksum: e402fac305525880f31683e48711b96a (MD5) Previous issue date: 2005-08
Two hundred eight of 648 (32%) diarrheal stool samples collected from hospitalized children under 5 years of age during a 3-year period (1999, 2000, and 2002) in the city of Salvador, in the state of Bahia, Brazil, were rotavirus positive. One hundred sixty-four of 208 (78.8%) rotavirus-positive samples had genotype G9 specificity, predominantly in association with P[8]. Other specificities detected were G1 (12.0%) and G4 (1.4%). Viruses with G2, G3, or P[4] specificity were not detected. Rotavirus genotype G9 predominated during each of the three seasons studied; it represented 89.2% of rotavirus strains detected in 1999, 85.3% in 2000, and 74.5% in 2002. G1 viruses (the globally most common G type) have a unique epidemiological characteristic of maintaining predominance during multiple consecutive rotavirus seasons. We have shown in this study for the first time that the G9 viruses also have a similar epidemiological characteristic, albeit for a shorter period of surveillance. The next generation of rotavirus vaccines will need to provide adequate protection against disease caused by G9 viruses.
