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[Continuing or discontinuing BCG revaccination in adolescents]
Paulo A M Camargos1, Maurício L Barreto, Cristina Alvim
1Departamento de Pediatria, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Alfredo Balena 190 sala 4061, 30130-100 Belo Horizonte, MG, Brasil. pcamargs@medicina.ufmg.br
Revista De Saude Publica
|April 4, 2006
Summary
BCG revaccination coverage in Brazilian adolescents was 64.3%. Direct scar assessment suggests reevaluating this public health strategy due to limited effectiveness evidence.
Area of Science:
- Public Health
- Vaccinology
- Epidemiology
Context:
- The Bacillus Calmette-Guérin (BCG) revaccination program was implemented in Brazil in the mid-1990s.
- No prior studies had directly assessed BCG vaccine coverage via scar examination in this population.
Purpose:
- To evaluate the prevalence of BCG revaccination coverage among adolescents in Southeastern Brazil using direct scar assessment.
- To provide data for public health authorities to reevaluate the effectiveness of the BCG revaccination policy.
Summary:
- A study assessed BCG scars in 2,785 adolescents (13-14 years old) in Southeastern Brazil from September 2001 to May 2002.
- The prevalence rate of BCG revaccination, indicated by the presence of a scar, was found to be 64.3% (95% CI: 62.5-66.0).
Impact:
- The findings indicate a significant gap in BCG revaccination coverage despite program implementation.
- Results challenge the continued practice of BCG revaccination, urging a reevaluation based on the lack of demonstrated effectiveness.
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