[semperfaux]

Sad doesn't even begin to describe how people should feel. People should feel irate.

Of course, that assumes people are or become informed about the nature of and reason for vaccination. Which should (and, at least as of my education, was) be a trivial part of US education.

Granted: The fact that many people apparently considered Jenny McCarthy a reliable source of scientific information points to a far more basic stupidity than a failure to understand high school microbiology. It's hard to educate people in general; it's way harder to educate people who have left the compulsory school system and decided that Twitter and celebrity are reliable sources of valid health advice.