For just the third time, ever, the Centers for Disease Control and Prevention has raised the travel alert to level three, warning against non-essential travel to Liberia, Guinea and Sierra Leone.

The Ebola death toll passed 700 on Thursday, 1,300 people have contracted the virus and it's not showing any signs of slowing down.

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Health officials around the globe are taking steps to stop the most aggressive outbreak of Ebola in history.

The U.S. Peace Corps is not taking any chances, taking nearly 350 volunteers out of Liberia, Guinea and Sierra Leone due to the outbreak.

Ebola has already killed an American citizen who was planning a trip home.

At least two other American aid workers in Liberia are also infected.

The disease is one of the most gruesome ways to die; there is no cure and it kills most of the people it sickens, but is it time to start worrying?

CNN’s Pamela Brown reports.