State health officials said 55 new cases had been reported since Wednesday. In all, 890 measles cases have been reported across 39 counties so far this year.
State health officials said 55 new cases had been reported since Wednesday. In all, 890 measles cases have been reported across 39 counties so far this year.
A vaccine clinic in New Holland, Pa. An outbreak of measles in Pennsylvania has led to four deaths so far this year, according to the State Health Department.