Add Yahoo as a preferred source to see more of our stories on Google. A health worker prepares a dose of the measles vaccine Feb. 27 at a health center in Lubbock, Texas. The debate over vaccines is ...

But obtaining a religious exemption is not as simple as producing a signed form. Measles outbreaks in schools over the past decade prompted some states to change their policies. Some now require an ...

A medical exemption requires a written statement from a physician that vaccination would be harmful to the student. But invoking a religious exemption in Maryland is simple. Parents can just sign a ...