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.

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.

HHS Secretary Robert F. Kennedy Jr., a noted vaccine skeptic, is voicing support for the measles vaccine amid a deadly outbreak, mainly in Texas.