Lower prevalence of tuberculosis infection in BCG vaccinees: a cross-sectional study in adult prison inmates

Abstract

Our results suggest that BCG vaccine seems to have a protective effect in adults decades after vaccination according to the number of recent infections (QFT-IT ≥0.7 IU/ml). This finding has important implications for national policy of BCG vaccination. Further prospective cohort studies on the protective effect of BCG vaccination against TB infection in adults are warranted.