Yahoo News answers some of the most frequently asked questions about measles amid the Texas and New Mexico outbreaks.

A child hospitalized with measles in West Texas has died. It's the first death in an outbreak that began last month.

A person who was hospitalized has died from measles in West Texas. It's the first since the outbreak began late last month.

A child who was not vaccinated has died from measles in West Texas, the first death in an outbreak that began late last month and the first from measles in the U.S. since 2015.