The Centers for Disease Control and Prevention (CDC) is disputing two measles deaths reported by Pennsylvania and excluding them from its official weekly tally of deaths, a radical departure from the agency’s normal practice of accepting and inclu...


The Centers for Disease Control and Prevention (CDC) is disputing two measles deaths reported by Pennsylvania and excluding them from its official weekly tally of deaths, a radical departure from the agency’s normal practice of accepting and including a state’s data. The decision to question Pennsylvania’s classification of measles deaths represents a key test for...