Health authorities warned of further spread. Most U.S. measles cases this year involved people 19 and under and those without a confirmed vaccination.

Nearly 100 cases of measles have been reported across Texas and New Mexico. Measles was declared eliminated from the United States in 2000, making this outbreak a cause for concern. Health officials attribute the rise in cases to plummeting immunisation rates,

The U.S. Centers for Disease Control and Prevention on Friday reported that measles cases so far this year had jumped to 93 from 14 a week ago, mainly driven by an outbreak in Texas.