Risk of tuberculous infection in an indigenous population from Amazonia, Brazil
Copyright
open access
Type
Article
Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
IJTLD
Alternative Title
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
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
Advisor
Co-Advisor
Committee Member
Organizer
Coordinator(s)
Institutional author
Director
item.page.production
Screenplay
Producer
Recorder
Abstract
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.
Abstract in Spanish
Abstract in French
Description
Keywords in Portuguese
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
Keywords
Keywords in Spanish
Keywords in French
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
Event Date
Previous version
Related Document
Means of dissemination
Duration
Duration
Original color system
Target audience context
Audience occupation
Educational Description
Evaluation
Peer Reviewed
Publication Status
Sponsorship
Latest version
Version
Event Location
Event title
Event Type
Citation
BASTA, Paulo Cesar 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.