Decreasing household contribution to TB transmission with age: a retrospective geographic analysis of young people in a South African township

Tuberculosis (TB) transmission rates are exceptionally high in endemic TB settings. Adolescence represents a period of increasing TB infection and disease but little is known as to where adolescents acquire TB infection. We explored the relationship between residential exposure to adult TB cases and infection in children and adolescents in a South African community with high burdens of TB and HIV. TB infection data were obtained from community,...