Measles parties echo chicken pox parties from decades ago, when people would deliberately expose themselves or others to someone with a confirmed case in an attempt to spread the virus in a controlled environment. The chicken pox vaccine was introduced to the public in 1995, largely ending the practice.

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.

When the local hospital warned of a brewing measles outbreak, Kaleigh Brantner urged fellow residents of this rural West Texas community to beware of vaccinating their children. Two weeks later, her unvaccinated 7-year-old son came home from school with a fever.