Enteroviruses isolated from patients with acute respiratory infections during seven years in Rio de Janeiro (1985-1991)
Portes, S.A.; Da Silva, E.E.; Siqueira, M.M.; De Filippis, A.M.; Krawczuk, M.M.; Nascimento, J.P.
Revista do Instituto de Medicina Tropical de Sao Paulo 40(6): 337-342
1998
ISSN/ISBN: 0036-4665 PMID: 10436652 Document Number: 493160
Enteroviruses were investigated in respiratory secretions collected from patients with acute respiratory infections (ARI) over a seven year period (1985-1991), as part of a longitudinal study of ARI aetiology. All the viruses that are most commonly associated with ARI were found in this study. Among the virus isolates, enteroviruses were only less frequent than respiratory syncytial viruses, adenoviruses and influenzaviruses. Forty five enterovirus samples were isolated from patients with either upper respiratory tract infections (URTI) or lower respiratory tract infections (LRTI). From these enterovirus isolates, thirty one samples were identified as poliovirus (n = 18) and non polio enterovirus (n = 13) by serum neutralization. Poliovirus were identified as type 1 and 2 and all of them were vaccinal strains. From thirteen non polio enterovirus, twelve were identified as echovirus serotypes 1, 2, 7, 11, 19 and 31. The remainder was identified as coxsackievirus B4.