What does the BCG innoculate against?

The BCG vaccine, which stands for Bacillus Calmette-Guérin, is primarily used to protect against tuberculosis (TB). It is especially effective in preventing severe forms of TB, such as TB meningitis and miliary TB, in children. The vaccine is derived from a weakened strain of the bacterium Mycobacterium bovis and is commonly administered in countries with high rates of TB.