Updated

A fifth unvaccinated person has died from measles in the U.S., even as the CDC is reportedly not counting all measles-related deaths. State health officials have scrambled to contain spread, administering more than 8,500 vaccine doses. Separately, measles exposures have been reported on trains and at sporting events, with active outbreaks spanning Pennsylvania, Ohio, and New York, prompting health officials to issue travel guidance. The expanding outbreak underscores growing concern among public health experts about declining vaccination rates and gaps in federal tracking of outbreak severity.