A growing measles outbreak in Texas, where one unvaccinated child died and nearly 20 others have been hospitalized with serious complications, marks the first major test for U.S. Health Secretary Robert F.

Rates of measles in the US have climbed significantly over the past 20 years, as vaccine skepticism has grown.

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