This episode discusses four MMWR reports. First, there was a rapid increase in the number of reported measles cases during the first quarter of 2024. Almost all cases occurred in people who were unvaccinated or with unknown vaccination status. Second, backyard poultry might increase the risk of Salmonella in infants and newborns, even in the absence of direct exposure. Third, new data show COVID-19 vaccines did not cause cardiac death in teens and young adults in Oregon. Finally, a cluster of central nervous infections at the Rhode Island Hospital was associated with a medical device commonly used in neurosurgery.