<prompt> Measles shows age distribution. It is found most commonly in which age group?9 months to 3 years6 months to 2 years9 months to 2 years6 months to 3 years  <response>: Impoant diseases their age distribution: Measles - 6 months to 3 years Mumps - 5-9yrs Chicken pox - 5-9yrs Rheumatic fever - 5 to 15 years Cancers, Cataract - 50 years Rota virus - younger infants Diabetes , HTN, CHD - 40yrs 