BCG vaccine at birth causes :
BCG vaccine at birth causes : Correct Answer Controlled primary infection
Bacillus Calmette Guérin (BCG), the only current tuberculosis (TB) vaccine, is a live attenuated strain of Mycobacterium bovis. Worldwide, more than 100 million children receive BCG each year [1]. BCG vaccination confers protection against severe forms of childhood as well as controll primery infactions TB, i.e. TB meningitis and miliary TB [1, 2].