After a second measles death in West Texas, the health secretary is expected to begin a tour through the Southwest to showcase nutrition legislation, among other priorities.

© Annie Rice/Associated Press

The health secretary has faced harsh criticism for his handling of the outbreak, embrace of alternative treatments and tepid endorsement of vaccination.

© Desiree Rios for The New York Times

Recent Trump administration actions are setting the stage for a measles resurgence, experts fear.

© Desiree Rios for The New York Times

Providers are getting a crash course in how to recognize and treat an infection as the virus tears through Texas and New Mexico.

© Claire Merchlinsky/The New York Times; Photographs by Getty Images

The outbreak in Texas could become much, much worse.

An important lesson amid a measles outbreak in America.

Why is it so hard to discuss the idea that vaccines have both risks and benefits?

Cases have now popped up in at least 19 states, including Kentucky and Georgia. That’s near enough to home for me to start worrying.