Neonatal BCG has no effect on allergic sensitization and suspected food allergy until 13 months

Background Vaccination with Bacillus Calmette‐Guérin (BCG) is used in many countries as protection against tuberculosis. Studies have suggested that BCG may also have non‐specific effects, reducing non‐tuberculosis mortality, morbidity, and atopic manifestations. In this study, we evaluated the effect of neonatal BCG vaccination on allergic sensitization and suspected food allergy at 13 months of age. Methods The Danish Calmette Study was conducted from 2012 to 2015 at three Danish hospitals. Within 7 days of birth, the 4262 newborns of 4184 included mothers were randomized 1:1 to BCG or to a no‐intervention control group. Exclusion criteria were gestational age