This nonsense at Huffpo from Jim Carrey attacking vaccines is the height of celebrities masquerading as experts. Usually its for harmless things, but in this case Carrey's advocacy (along with Jenny McCarthy) will likely lead to children getting sick and possibly dying.
This attitude caused a measles outbreak in San Diego and is basically child abuse.
Vaccinate your children. A lot of scientists worked hard on these medicines and as a result our generation is resistant to many ailments that shortened the lives of past generations. This stuff is so irresponsible.