Hmmm, Could it be tied to 3rd world immigration? Just a thought.
Mark Steyn recently wrote an article about how if the mainstream press expresses to be "baffled" by some social trend - you can nearly always attribute it to Muslims/Immigration. As with residents of the former Soviet Union, Americans now need to read between the lines of their controlled media..
Could be anti-vaccine types. They don’t realize how much they are putting their children in jeopardy. I guess when they see the kid in a casket, maybe they will wake up.
Even if that is the primary cause, you must keep searching until some other cause can be reported. Doing otherwise would be racist. Global Warming (Equals White Males) would probably be an acceptable alternative.