Pennsylvania reports 5th measles-associated death as outbreak worsens

Pennsylvania reported its 5th measles-associated death, marking a new mortality milestone in the 2026 resurgence. The state applies a broad 'measles-associated' classification (any death with a positive measles test regardless of immediate cause), so this figure differs from coroner cause-of-death determinations and CDC's federal tally. The ongoing outbreak continues to expand across the northeastern US.