if you think it is absolutely safe get them the MMR shot, in my family .. one with autism, the other put the baby boy in the hospital for 2 days with an infection the docs never see anymore. By the way the insurance turned it over to the government for compensation since it is a known reported rare side effect. MMR today contains trace amounts of mercury still although most been removed. It is a drug company bs that says it never had it. Lots of university studies had it in all kinds of levels, they also use formaldehyde and aluminum ... people don't realize that either. Most newborns are under 8 lbs ... how great that is to put it right into the blood stream