Two Texas universities and their surrounding communities have issued warnings about potential exposure to measles after giving campus tours to at least one person who tested positive for the virus. Experts have been tracking the measles outbreak in Gaines County since late January.

A warning has been issued for three Texas cities after someone with measles visited them while contagious. The Texas Department of State Health Services (DHSH) shared the warning on Monday "so unvaccinated people may monitor themselves for symptoms and seek testing if symptoms occur.

The Hays County Health Department alerted residents about possible exposure to a person who tested positive for measles.

The number of measles cases linked to an outbreak in West Texas has grown to 58, according to the Texas Department of State Health Services.

Measles exposures in Central Texas have been linked to visitors from Gaines County in West Texas, where a measles outbreak is reaching close to triple digits.

The measles outbreak in Texas has escalated sharply to 90 cases as health officials worry about the spread to more communities.