There's fear the deadly Ebola virus will spread to the U.S. and Houston's UT Health Science Center is on the front lines.
Dr. Robert Emery is vice president of UT Health Safety. He says employees routinely travel internationally, but they only track business travel.
"We're not capturing that personal travel as well; that's why we've gone out with this notice on our web site for all individuals to be aware of this protocol."
Luckily, Ebola is hard to catch.
"It's not transmitted something like Tuberculosis where someone might cough on you or something like that. It has to require actual contact with human blood and body fluid."
But Dr. Emery says these types of safety measures are nothing new.
"We've always tried to adhere to the international travel advisories and if there's situations where individuals were traveling to an area where there might have been an outbreak we try to put controls in place."
Some hospitals are trying a 'reverse quarantine' -- keeping doctors who've traveled to Africa away from patients until they're sure there are no signs of Ebola.