Other states with active outbreaks — which the CDC defines as three or more related cases — include Indiana, Michigan, ...

A 1-year-old boy from Ingham County who was thought to have had measles in April actually was not infected with the virus, ...

"It does worry us in the sense that here in West Michigan, we're at about 84% immunization status. The problem with that is ...

The U.S. has surpassed 1,000 measles cases for the first time in five years, according to new data from the CDC published ...

Measles cases have been reported in 31 jurisdictions, up from 30 on May 1. Cases have been reported in more than half of U.S.

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This is only the second year cases have been this high since the disease was declared eliminated in the US a quarter-century ...