BCG vaccine prevents tuberculosis in young children, but not adults: study

Amid longstanding debate on the effectiveness of the tuberculosis vaccine, a new study suggests that the vaccine is protective against TB in children under 5, but adolescents and adults in high-burden countries may need additional protection to maintain immunity beyond childhood.

source https://medicalxpress.com/news/2022-08-bcg-vaccine-tuberculosis-young-children.html