Pennsylvania records a fifth measles death as the nation endures its worst year since 1991

Pennsylvania health officials confirmed a fifth measles-associated death on Wednesday, marking a significant development in the United States' worst year for the disease since 1991. The announcement comes as national case numbers have more than doubled since August, reflecting a broader surge in infections across the country.

While the state continues to report fatalities, the situation is complicated by an ongoing disagreement between Pennsylvania authorities and federal health officials regarding the official death count. This dispute highlights tensions in the reporting and classification of measles-related mortality during the current outbreak.