3. It helps children with weak immune systems.
Children with weak immune systems can get tuberculosis faster. Even if they get the vaccine, their TB test could come out positive. It is important to get the vaccine when the child is a baby to prevent the disease from getting into their body. The vaccine lasts for 15 years, but in certain cases, the BCG vaccine could be given again, especially since the child has a weak immune system. Skin tests will need to be given on a regular basis as well.
In foreign countries, people live in poor conditions and can transmit diseases to one another. Instead of getting treated for tuberculosis, they decided to let it stay in their bodies.
The vaccine is free in their country, so there is no excuse. With the BCG vaccine, the child at least won’t get tuberculosis from other people around him or her.