Vaccination eliminated measles from the U.S. 25 years ago. But it can still spread in pockets where vaccination rates are low, like the west Texas county with a current outbreak. Here's how fast.

The latest update comes two days after the first death was reported in a school-aged child who lived in the outbreak area.

The Houston Health Department is hosting a free vaccination clinic on Saturday amid a measles outbreak in northwest Texas. The clinic will offer the measles, mumps and rubella vaccine to eligible children and adults from 10 a.