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  |  Baby  |  Immunisation  |  Heaf test and BCG
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Heaf test and BCG

by Dr Howard Lee

question
What is the procedure for the Heaf test and BCG given at school when my child is over 10?

answer
The Heaf test is a skin test performed in order to determine whether or not a child is immune to tuberculosis. Small skin punctures are produced on the forearm, through which tuberculin is introduced. If the test is positive a reaction causes the skin to become red and raised, indicating that there is an immunity already. If the test is negative a BCG vaccine is then offered. It is not usual to have any major side effect to BCG vaccine, other than the small sore or blister at the injection site.
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