The CDC recalled nearly 180 recently laid-off employees via an urgent email amid a measles outbreak and busy flu season, apologizing for the disruption caused by the layoffs.

Measles was declared eliminated in 2000 in the U.S., but it has been making a comeback in recent months amid rising anti-vaccine sentiment.

Robert F. Kennedy Jr, who oversees the health of more than 340 million Americans, says vitamin A can prevent the worst ...