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frequency of group a rotavirus in diarrhoeic calves in brazilian cattle herds, 1998-2002.the frequency of group a bovine rotavirus (gpa brv) in calves from 1998 to 2002 was determined by the polyacrylamide gel electrophoresis technique in 2177 faecal samples, of which 1898 samples were diarrhoeic and 279 were of normal consistency (control group) that were collected from asymptomatic calves for comparative purposes. the animals were from beef and dairy cattle herds (n = 321) from 158 counties in seven states (paraná, são paulo, minas gerais, mato grosso do sul, mato grosso, goiás an ...200617265766
rotavirus diarrhea in children and adults in a southern city of brazil in 2003: distribution of g/p types and finding of a rare g12 strain.between may and august in 2003, a total of 251 fecal samples were collected from children and adults with diarrhea (5 inpatients and 246 outpatients) at a private hospital in the city of ponta grossa, the state of paraná, brazil. group a rotavirus was detected in 71 of 251 (28.3%) specimens: 55 (77.5%) from children under 5 years of age and 16 (22.5%) from individuals aged 6-72 years. all 71 strains exhibited a "long" rna pattern when analyzed by page. sixty-one positive samples that yielded eno ...200616847962
g and p genotypes of group a rotavirus strains circulating in calves in brazil, 1996-1999.fifty fecal samples from calves with diarrhea, positive for group a rotavirus by enzyme immunoassay (eia) and polyacrylamide gel electrophoresis (page) were analyzed by a nested multiplex reverse transcription/polymerase chain reaction (nested multiplex/rt-pcr) for identification of p and g genotypes. samples were collected between 1996 and 1999 from eight dairy and/or beef cattle herds located in the mato grosso do sul, são paulo, goiás and paraná states, brazil. complete genotyping was possibl ...200415066719
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