| longitudinal study of acute respiratory diseases in rio de janeiro: occurrence of respiratory viruses during four consecutive years. | the occurrence of different viruses in nasopharyngeal secretions from children less than 5 years old with acute respiratory infections (ari) was investigated over a period of 4 years (1982-1985) in rio de janeiro. of the viruses known to be associated with ari, all but influenza c and parainfluenza types 1, 2 and 4 were found. viruses were found more frequently in children attending emergency or pediatric wards than in outpatients. this was clearly related to the high incidence of respiratory sy ... | 1991 | 1668974 |
| influenza surveillance in rio de janeiro between 1980-1981: a virological and serological study. | laboratory surveillance of influenza has shown a low virus activity in rio de janeiro during 1980 and 1981. a few influenza a (h3n2) viruses were isolated in both years during the winter months. serological investigations showed that this subtype has circulated mostly among children under 10 years of age. no h1n1 virus was isolated but an increase in the proportion of adults with antibody to this virus was noted in sera collected in 1981. influenza b virus was isolated from children in the sprin ... | 1984 | 6535914 |
| viral etiology of acute respiratory diseases in rio de janeiro: first two years of a longitudinal study. | a two-year study was undertaken to establish the incidence and possible viral etiology of acute respiratory diseases among the child population of a shanty town in rio de janeiro, brazil. the results demonstrated that nearly half of all the illnesses seen were respiratory infections, 10% of them affecting the lower respiratory tract. viruses were isolated from 20% of the throat swabs collected. of the viruses identified, 47% were adenoviruses, 25% were enteroviruses, 9% were influenza a, 8% herp ... | 1983 | 6606500 |