Q: Morn Doc, please help me clear out something. A new born baby that was given a first time injection (BCG).Is it a must that it must bring out pus. She is 3 weeks now. Again, is it normal she didn’t poo for some days now? Should I be worried?

A: The full meaning of BCG is Bacille Calmette-Guerin, named after scientists, Drs Calmette and Guerin who developed the vaccines. It was used for the first time in human beings in 1921. This is a freeze-dried live but weakened strain of Mycobacterium Bovis (very similar to the bacteria that cause tuberculosis), a bacterium found in cattle which can cause tuberculosis in man. This vaccine is part of the compulsory immunization schedule in countries with a high incidence of tuberculosis. It provides protection over a range of 10-20 years and so is not particularly useful in adults…sorry 😀

This vaccine usually…