USA Today: The U.S. is experiencing a spike in measles, according to the Centers for Disease Control and Prevention.
That's about three times the usual number of cases of measles, CDC Director Thomas Frieden said Thursday. The USA has seen nine outbreaks this year, with the largest in New York, North Carolina and Texas.
More than 98% of measles patients were unvaccinated, Frieden said.
"This isn't the failure of a vaccine; it's the failure to vaccinate," Frieden said.