Washington, District Of Columbia -
(NBC News) Now that two Americans have been diagnosed with the deadly Ebola virus in Africa, U.S. officials are warning anyone traveling there to steer clear of people who may be infected.
Federal health officials say there's little chance the virus will spread to the United States, but they're not taking any chances.
Liberia shut its borders, but the virus quickly spread to neighboring countries.
"This outbreak highlights the need for us to enhance our global health security everywhere in the world," says Stephan Monroe of the Centers for Disease Control and Prevention.
Despite airport screenings in West Africa, the CDC and State Department are concerned the next outbreak could be just one flight away.
"We're taking every precaution, of course as would be expected," says State Department Spokeswoman, Jen Psaki.
That includes providing U.S. missions with protective equipment and supplies.
Ebola is an extremely deadly disease. Typically, only one in 10 survive. In this outbreak so far, it's four in ten.
It can take up to three weeks for symptoms to appear, and health workers are at risk. "
650 people in Guinea, Liberia and Sierra Leone have died since February.
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