Measles in the United States has reached a 20-year high and have doubled in the last month, the Centers for Disease Control and Prevention says.
Officials said the rise in cases is driven in part by travelers who bring the disease to the U.S. from Europe, Asia and Africa.
"Last year we had someone returning from Asia and they went and visited at a church and came in contact with a few people who were vulnerable. As a result we had 21 cases here in North Texas," said Russ Jones, with the Tarrant County Health Department.
Health officials are urging anyone with travel plans abroad to get the measles vaccine.