A female researcher at Fort Detrick in Frederick may have been exposed to the Ebola virus last week when she grazed her hand with a needle she was using to inject mice with the virus.
The researcher, who was working in the Army's Medical Research Institute of Infectious Diseases, has been staying in an isolation area since the incident Feb. 11, said spokesman Chuck Dasey. She has shown no signs of infection, he said.
Medical technicians have been testing blood samples from the researcher for traces of the virus, Dasey said. Fever is also an indication of infection.
"She is being observed and so far, she is not sick," he said. "We are watching for any change in her health."
There is no known treatment for Ebola infection, which causes severe internal bleeding.