An outbreak of measles in Texas has infected 124 people so far — 18 of whom have subsequently been hospitalized and one who has died.

According to the society, the last US measles death was in 2015. A measles infection can have particularly devastating complications for pregnant women and young children, including pneumonia, neurological impairment, hearing loss and death.

One death has been reported from a measles outbreak in the US state of Texas with 124 cases confirmed as of Wednesday, mostly among unvaccinated children. The Texas Department of State Health Services (DSHS) said 18 people have been hospitalized and the majority of cases are among unvaccinated children: 62 cases of children between 5 and 17 and 39 among children 4 and under.