The warning against measles parties comes days after an unvaccinated child died of measles in Lubbock County about month after an outbreak began in West Texas.

A child’s death this past week in Texas is the first U.S. death from measles, a highly contagious but preventable respiratory disease since 2015, according to the U.S. Centers for Disease

Officials at Legacy Traditional School – Cibolo said Thursday they had confirmed a measles case in a first-grade classroom. They later said the case was actually rubella.