Measles cases are making a comeback in the U.S., with outbreaks in multiple states. Measles is one of the most contagious viruses out there.
Measles cases are surging and public health officials are urging parents to take precautions.
Back in the day, one shot was the standard protocol, but one shot of the MMR vaccine isn't as effective as two.
There is a state of emergency in Rockland County, but no nation-wide outbreak in America right now.