If babies and young children are exposed to TB germs, they are more likely to get sick compared to adults. Because their immune system is not strong, they are at high risk for infection with TB germs.
Before your child gets the TB test, your doctor may ask you some questions about your medical history as well as your child’s medical history to determine if he or she is at risk for TB. If your child is enrolled in school, the school may have additional requirements. Check with the school and with your doctor about other requirements.
The BCG vaccine is given in some countries where TB is common to protect young children from getting sick with TB.
The BCG vaccine may not protect children from getting TB when they get older. They could still be exposed to TB germs and get sick.