ENTEROVIRUSES ISOLATED FROM PATIENTS WITH ACUTE RESPIRATORY INFECTIONS DURING SEVEN YEARS IN RIO DE JANEIRO (1985-1991)

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...

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Bibliographic Details
Published in:Revista do Instituto de Medicina Tropical de São Paulo
Main Authors: Silvana A.R. PORTES, Edson E. DA SILVA, Marilda M. SIQUEIRA, Ana Maria B. DE FILIPPIS, Murilo M. KRAWCZUK, Jussara P. NASCIMENTO
Format: Article in Journal/Newspaper
Language:English
Published: Universidade de São Paulo (USP) 1998
Subjects:
Enteroviruses
Nasopharyngeal secretions
Acute respiratory infections
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
Aguda
Arctic
Ari
Online Access:https://doi.org/10.1590/S0036-46651998000600001
https://doaj.org/article/8e835b597aba48a7a447a0235e20a363
Description
Summary: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. Os enterovírus foram investigados em secreções respiratórias coletadas de pacientes com infecção respiratória aguda (IRA), durante um período de sete anos (1985-1991), dentro de um estudo longitudinal da etiologia das IRAs. Neste estudo foram encontrados todos os vírus que são mais comumente associados com IRA. Entre os vírus isolados, os enterovírus foram apenas menos frequentes que vírus respiratório sincicial, adenovírus e influenzavírus. Quarenta e cinco amostras de enterovirus foram isoladas de pacientes com infecção do trato respiratório superior ou inferior. Entre estes enterovírus isolados, trinta e uma amostras foram identificadas como poliovírus (n=18) e enterovírus não polio (n=13) pelo teste de soroneutralização. As amostras de poliovirus isoladas foram classificadas como amostras vacinais do tipo 1 e 2. Dos treze enterovírus não polio, doze foram identificados como echovírus sorotipos 1, 2, 7, 11, 19 e 31 e apenas um foi identificado como coxsackievírus B4.

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