RESUMO
Group A rotavirus infections were detected in 93 of 410 fecal samples from children with acute diarrhea, admitted in three main hospitals of Asunción, Paraguay, from August 1998 to August 2000. Most of the rotavirus-infected patients were admitted during the winter season in the three epidemic years. The rotavirus infection rate was highest in infants from 6 to 23 months of age. In the 93 samples examined, 10 different rotavirus electropherotypes were recognized, but two of them largely predominated. Only one sample showed a short electropherotype pattern, thus indicating a minor involvement of the rotavirus subgroup I in rotaviral acute diarrhea in the area and the time during which the survey was carried out.
Assuntos
Diarreia/epidemiologia , Surtos de Doenças , Infecções por Rotavirus/epidemiologia , Rotavirus/classificação , Doença Aguda , Pré-Escolar , Diarreia/virologia , Eletroforese em Gel de Poliacrilamida/métodos , Fezes/virologia , Humanos , Lactente , Paraguai/epidemiologia , RNA Viral/análise , Rotavirus/isolamento & purificação , Infecções por Rotavirus/virologiaRESUMO
Electropherotypes of human rotavirus isolates from infants with acute diarrhea belonging to two populations with different clinical features were determined. Thirteen electropherotypes were identified in total 69 isolates; 46 (66.6%) isolates had long RNA migration patterns and 23 (33.3%) isolates had short migration pattern. One of the long-pattern electropherotypes (47.82% of the total electropherotypes) was predominant. It was detected in both populations almost throughout the whole period of the study, while other electropherotypes were found only occasionally. The co-circulation of long and short electropherotypes was not frequent.