The measles outbreak in western Texas is continuing to grow, with 22 new cases confirmed over the last five days, bringing the total to 422 in the state, according to data published Tuesday.
Almost all of the cases are in unvaccinated individuals or in individuals whose vaccination status is unknown, according to the Texas Department of State Health Services (DSHS). At least 42 people have been hospitalized so far.
Just four cases have occurred in people fully vaccinated with the measles, mumps, rubella (MMR) vaccine and one case has occurred among someone vaccinated with one dose, health officials said.