A U.S. healthcare worker who may have been exposed to
The patient, who was not identified, was admitted Thursday to the hospital's serious communicable disease unit to undergo testing, hospital officials said. They did not say which West African country the healthcare worker was in at the time he or she was possibly exposed to the virus.
The hospital this year has treated four patients who have tested positive for Ebola.
Earlier this week, a Boston patient who was being monitored for Ebola-like symptoms was found not to be suffering from the virus, but had instead contracted malaria.