A second American infected with the Ebola virus is set to arrive in Atlanta from West Africa on Tuesday for treatment.
Officials said Nancy Writebol was caring for patients in Liberia when she came down with the symptoms. Her plane was on its way back to the U.S. Tuesday morning.
The flight took off around 1 a.m. local time.
Writebol will join her colleague, Dr. Kent Brantley, for treatment at the Emory Hospital in Atlanta.
Both are receiving an experimental serum meant to fight the virus. The treatment has only been tested on monkeys so far. However, doctors said the two aid workers were showing signs of improvement.
More than 1,600 people in West Africa have been sickened by the worst-ever Ebola outbreak.
At Mt. Sinai Hospital in New York, a man who recently traveled to the region was being tested for the virus.
Officials said they were on the lookout at airports for people with flu-like symptoms.
Health experts want to stress that Ebola is only spread through direct contact with bodily fluids, so the risk of it spreading in the U.S. was small.
The New York patient is described as being in "good" condition. Doctors said they should know as early as Tuesday whether or not he has the virus.
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