The behind-the-scenes effort to contain the nation’s worst ongoing measles outbreak The Washington Post6-week-old infant died of measles, Pennsylvania county coroner says CNNLancaster County, PA infant confirmed to have died from measles The HillConfirmation of measles death gives Pennsylvania governor another chance to call out RFK Jr. politico.comEXCLUSIVE: Kennedy asked to remove Pennsylvania measles death from CDC tally, sources say Reuters