Anti-Vaccine Reunion Tour
The event/issue is the vaccine debate.
Jenny McCarthy is in this cartoon.
The pink creature represents the measles. The fat creature represents the mumps.
The cartoonist's opinion is that if you or your children don't get vaccinated, they are at high risk for diseases like the measles, mumps, and whooping cough.
I agree with the cartoonist, because if you don't get vaccinated for something, you have a higher chance of getting that disease.