Measles and mumps return to the US

Children are at risk again from diseases we thought were wiped out long ago:

http://baltimore.cbslocal.com/2013/11/07/alarming-trend-more-people-coming-down-with-deadly-diseases-like-measles-and-mumps/

Why should this be happening? Could any of the following be some of the causes?

• illegal immigration
• human trafficking
• broken marriages
• lack of education
• poverty

Of course not. It's all because "some fear the vaccines can do more harm than good."

And of course such fears are irrational, because as everyone should now know, vaccines do not harm your children.

R-r-r-r-r i-i-i-g-g-g-g-h-h-h-h-t-t-t-t.