Please use this identifier to cite or link to this item: http://ds.saudeindigena.icict.fiocruz.br/handle/bvs/1262
Title: Risk of tuberculous infection in an indigenous population from Amazonia, Brazil
Authors: Basta, Paulo Cesar
Coimbra Junior, Carlos E. A.
Camacho, L. A. B.
Santos, Ricardo Ventura
Affilliation: Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sérgio Arouca. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública. Rio de Janeiro, RJ, Brasil / Universidade Federal do Rio de Janeiro. Museu Nacional. Rio de Janeiro, RJ, Brasil
Abstract: To estimate the prevalence and the annual risk of infection (ARI) of tuberculosis (TB) in an indigenous population in Brazil. METHODS: We applied a method to estimate the prevalence of TB infection in populations with high bacille Calmette-Guérin (BCG) vaccine coverage. The method consisted of comparing levels of skin test reactivity in individuals tested with purified protein derivative (PPD) before and after stimulation with intradermal BCG. Fieldwork was carried out among the Suruí Indians (n 993) in two phases, 3 months apart. RESULTS: A total of 645 subjects were tested. In pre- BCG revaccination, tuberculin skin test (TST) indurations averaged 5.9 mm (33.5% 10 mm). In post-BCG revaccination TST, indurations averaged 9.4 mm (48.7% 10 mm). Conversion from non-reactor to reactor was 54.4%. The ARI ranged from 1.2% to 2.2%. In the logistic regression, age and history of TB were the strongest independent predictors of TB infection. BCG scar and the number of individuals per house were also associated with infection. CONCLUSION: Tuberculous transmission is very high in the Suruí, surpassing the ARI reported for Brazil (0.6%). The epidemiology of TB in this indigenous population is related to unfavourable social and economic conditions, as well as to deficient health care services.
Keywords: Brasil
Índios Sul-Americanos
Região Norte
Saúde de Populações Indígenas
Mato Grosso
Região Amazônica
Epidemiologia
Região Centro-Oeste
Amazônia
Suruí
Rondônia
Tuberculose
Morbidade
Serviços de Saúde
Vacina BCG
Mycobacterium tuberculosis
Doenças Infecciosas e Parasitárias
Condições Socioeconômicas
Suruí de Rondônia
Teste Tuberculínico
DeCS: Brasil
Saúde de Populações Indígenas
Índios Sul-Americanos
Ecossistema Amazônico
Epidemiologia
Tuberculose
Morbidade
Serviços de Saúde do Indígena
Vacina BCG
Mycobacterium tuberculosis
Condições Socioeconômicas
Teste Tuberculínico
Issue Date: 2006
Publisher: IJTLD
Citation: BASTA, P. C.. et al. Risk of tuberculous infection in an indigenous population from Amazonia, Brazil. Int J Tuber Lung Dis, v. 10, n. 12, p. 1354-1359, 2006.
Copyright: open access
Appears in Collections:EPI - Artigos de Periódicos

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