Question

ramu was suffering from measles.Two of his brothers and his sisters decided that their youngest brother shyam should look after ramu. there could be 2 possible reasons for them to have taken such decision,use the clues to think of reasons.
clues - immune, vaccination, public health programme, infected by microbes

Answer 1

My best answer would be that he is a doctor.
Hope this helps.

Answer 2

Vaccinated at 9th month along with mumps and rubella as mmr vaccine