Rotavirus subgroups, G serotypes, and electrophoretypes in cases of nosocomial infantile diarrhea in Belém, Brazil
Gusmão, Rosa Helena P
Mascarenhas, Joana D'Arc Pereira
Gabbay, Yvone Benchimol
Lins-Lainson, Zéa Constante
Ramos, Francisco Lúzio de Paula
Monteiro, Talita Antonia Furtado
Valente, Sebastião Aldo da Silva
Fagundes Neto, Ulysses
Linhares, Alexandre da Costa
From November 1992 to November 1994 stool samples were obtained from 237 children admitted to a public hospital in Belém. Rotaviruses were detected in 19.3 per cent (60/310) of faecal samples. Of these, 32.1 per cent (18/56), 20.9 per cent (38/181), and 5.4 per cent (4/73) were recorded in cases of nosocomial diarrhoea, community-acquired diarrhoea, and controls, respectively. Fifty-two (86.7 per cent) of the 60 rotavirus-positive specimens were subgrouped and the G serotypes of 55 (91.7 per cent) of them were determined. Subgroups I and II were detected in 50 per cent each of the 52 subgrouped strains. G type 2 was present in 46 (83.6 per cent) of the 55 serotyped samples; serotypes G1 and (mixed) G1 and G4 were found in 14.5 per cent and 1.8 per cent, respectively, of these specimens. Viral RNA electrophoresis showed 14 distinct patterns, including 56.7 per cent (34/60) and 43.3 per cent (26/60) of long and short profiles, respectively. In 40 (66.6 per cent) of the 60 rotavirus-positive faecal samples no enteropathogens other than rotavirus were detected. There was an increased incidence of rotavirus infection from July 1993 to February 1994. The rotavirus-related episodes of diarrhoea were more severe than those of other aetiology and greater clinical severity was not related to a specific G type, subgroup, or electrophoretype.
xmlui.dri2xhtml.METS-1.0.item-citationGUSMÃO, Rosa Helen P. et al. Rotavirus subgroups, G serotypes, and electrophoretypes in cases of nosocomial infantile diarrhea in Belém, Brazil. Journal of Tropical Pediatrics, v. 45, p. 81-86, Apr. 1999.
Infecções por Rotavirus / epidemiologia
Rotavirus / isolamento & purificação
Diarréia Infantil / diagnóstico