Nothing Lasts Forever, Including Infant BCG Vaccine Protection
Infants who received BCG [bacille Calmette-Guérin] vaccination at birth had protection against tuberculosis into early childhood, but that protection largely disappeared in only a few years, according to a meta-analysis. Effectiveness of the BCG vaccination against tuberculosis in all age groups was 18%. However, when the results were stratified by age, only in children younger […]