Updated

An 18-year-old in Pennsylvania died from acute disseminated encephalomyelitis, a severe neurological complication of measles, while a 40-year-old unvaccinated woman also died from measles-related complications in the state, marking Pennsylvania's third measles death in under three weeks. The deaths are part of the worst U.S. measles outbreak in decades, occurring as flu season approaches. The CDC's questioning of two of the Pennsylvania measles deaths has stirred fears among public health experts about the reliability of federal health data and the agency's overall response, raising broader concerns about the nation's preparedness for the growing outbreak.