Nigeria, March 16 -- Receiving vaccine for tuberculosis (TB) during childhood does not totally cover an individual from getting infected with the disease, a health expert, Odume Betrand has said.

Bacilli Calmette-Guerin (BCG) is the vaccine for the prevention of TB and often administered to children at birth. However, there are some exceptional cases where people who had received the vaccines still get infected with the disease.

This could explain the reasons why there are TB cases recorded even among children or people who were given BCG vaccines at birth.

Mr Betrand, senior programme specialist, TB/HIV, United State Centre for Disease Control, said the vaccine would only reduce the severity of the disease, if contacted, because some ...