Viral etiology of acute respiratory infections among children in Porto Alegre, RS, Brazil
Rev. Soc. Bras. Med. Trop
;
35(4): 283-291, jul.-aug. 2002.
Artículo
en Inglés
| LILACS
| ID: lil-331755
RESUMO
Although acute respiratory infections (ARIs) are a major cause of child morbidity and mortality in Southern Brazil, little information is available on their seasonality and viral etiology. This study was conducted on children under 5 years of age with ARI to assess viral etiology in the State of Rio Grande do Sul, from 1990 to 1992. A total of 862 nasopharyngeal secretion (NPS) samples were tested using indirect immunofluorescence. The results showed that 316 (36.6) NPS samples were positive: 26.2 for RSV, 6 for adenovirus, 1.7 for influenza viruses, 1.5 for parainfluenza viruses, and 1.2 for mixed infection. The mean viral prevalence rates in out-patient services, emergency wards, and in-patient hospital wards were 26.7, 53 and 42.3, respectively. Respiratory syncytial virus (RSV) and adenovirus accounted for 91.4 of the viral diagnoses. RSV was more frequent in children under one year of age at the three levels of health care and was prevalent in infants under six months. Adenovirus was the most prevalent pathogen in hospitalized children, in 1992. Influenza A virus showed an increased prevalence with age among out-patient children. This study shows the annual occurrence of viral respiratory infections in the coldest months, with a significant annual variation in the frequency of RSV infection.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Infecciones del Sistema Respiratorio
/
Infecciones por Adenovirus Humanos
/
Infecciones por Virus Sincitial Respiratorio
Tipo de estudio:
Estudio de etiología
/
Estudio de prevalencia
/
Factores de riesgo
Límite:
Child, preschool
/
Femenino
/
Humanos
/
Lactante
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Masculino
/
Recién Nacido
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Rev. Soc. Bras. Med. Trop
Asunto de la revista:
Medicina Tropical
Año:
2002
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Fundação Estadual de Produção e Pesquisa em Saúde/BR
/
Fundação Oswaldo Cruz/BR
/
Hospital da Criança de Santo Antonio/BR
/
Universidade Federal do Rio Grande do Sul/BR
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