The news on Wednesday that a Texas child died from the measles is a sign the outbreak that has already infected 124 is dangerous, Dr. Peter Hotez said.

LUBBOCK, Texas — 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.

Watch for measles symptoms like high fever, ear infections, runny nose, pink eye, and a rash that can go from head to toe. If you have any, call your doctor immediately.