First of all the illness with fever and rash does not appear to be due to measles. As diagnosed by the doctors at Melbourne, it appears to be a viral exanthema similar to rubella. Follow the advice given to you for the management by the treating physician. Second, it is prudent to follow the immunization program of the country where you reside rather than follow the schedule in India. Early immunization against measles is advised in India primarily because measles is very common in India and is a major cause of childhood mortality and morbidity. However, it is not so in Australia and hence their pediatric society advises a late immunization for measles with mumps and rubella (MMR) at 15 months like in rest of the developed world. I advise you to follow that schedule.