U.S. Health Secretary Robert F. Kennedy Jr. said last week he would send Texas 2,000 doses of the measles, mumps and rubella vaccine through its immunization program. Kennedy founded the anti-vaccine group Children’s Health Defense, but has said he would not prevent Americans from getting vaccinated.

Texas health officials are issuing a stern warning against the dangerous practice of “measles parties” as the state grapples with a growing measles outbreak.

A school-aged child has died as Texas battles a measles outbreak with over 135 cases. Learn who's at risk and how to check your vaccination status.