Measles

Some counties have very low rates, and all that's needed in those unvaccinated pockets is a spark — an infected person traveling — to spread measles like wildfire.

Misinformation coupled with a parental rights movement that shifts decision-making away from public health expertise has contributed to the lowest childhood vaccine rates in a decade.

Measles is on the rise in the United States. It’s going to get worse, largely because a growing number of parents are deciding not to get their children vaccinated against measles, as well as diseases like polio and pertussis.