U.S. reports biggest measles outbreak since 2001

WASHINGTON (Reuters) - The biggest U.S. outbreak of measles since 2001 is unfolding in 10 states, with at least 64 people ranging from infants to the elderly becoming ill -- most of them unvaccinated, U.S. health officials said on Thursday.

None of those who contracted the highly contagious viral illness has died, although 14 people have been hospitalized, the U.S. Centers for Disease Control and Prevention said.