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1. BCG vaccine at birth causes :

  • A. Controlled primary infection
  • B. Controlled primary infection
  • C. Controlled primary infection
  • D. Controlled primary infection

Answer: Option A

Explanation:

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].

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