U.S. measles cases more than double what they were last year as outbreak spreads
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Measles cases in the United States have more than doubled compared to last year. Pennsylvania is the most affected state. The Pennsylvania Department of Health confirmed at least 1,338 cases across 44 counties this year.
Pennsylvania is the worst hit state, with at least 1,338 cases of measles confirmed in 44 counties so far this year, according to the Pennsylvania Department of Health.