The U.S. has seen three measles outbreaks since the start of the year, including one in the South Plains region of Texas. Some 223 cases have been reported since late January, the Texas Department of State Health Services said Tuesday, including one fatality in a school-age girl who wasn’t vaccinated.

Health and Human Services Secretary Robert F. Kennedy Jr. appeared to suggest getting measles is the best defense against the disease, as a Texas outbreak spreads across the U.S. More than 220 people in the state have been diagnosed with the infectious virus,

In Texas specifically, a total of 223 people have contracted measles since the outbreak began in January, with at least 29 people, mostly children, requiring hospitalization. One child, who was unvaccinated, has died from measles, while a second unvaccinated person’s death is currently being investigated by health officials.