MedPage Today reports new measles-associated deaths in Wisconsin and Pennsylvania as U.S. cases top 5,412, with state health departments recording 10 deaths total and 97% of cases in unvaccinated people, per the CDC. The article says the outbreaks will likely end U.S. measles elimination status, first attained in 2000, and cites officials' vaccine skepticism as sowing doubt over the MMR shot.