The disease can take three weeks to show symptoms.
A study suggests even a 5 percent decline in MMR vaccine adherence could spark a measles outbreak in the U.S.
“Herd immunity” still isn’t statistically achievable in small pockets of the country, according to a new report from the CDC.
Home-schooled children are still permitted to forgo immunization.
"It benefits everyone to do all that is possible to prevent anyone from requiring medical attention," writes Jae Won Joh, a doctor.
83 percent of Americans think the measles vaccine is safe.