Dr. Craig Spencer, who recently returned from Guinea, has tested positive for the Ebola virus, making him New York City's first diagnosed patient.
Spencer, 33, was taken to Bellevue Hospital on Thursday after reporting a "fever and gastrointestinal symptoms," city officials said in a statement.
A preliminary test confirms that the doctor contracted the deadly Ebola virus. Another test will be conducted by the Centers for Disease Control.
Doctors Without Borders, with whom he had been participating in treating the virus in Africa, confirmed that one of its own contracted Ebola yesterday:
"A person in New York City, who recently worked with Doctors Without Borders in one of the Ebola-affected countries in West Africa, notified our office this morning to report having developed a fever."
"As per specific guidelines Doctors Without Borders provides its staff on return from Ebola assignments, the individual engaged in regular health monitoring and reported this development immediately."
New York health officials are currently working to track down who Spencer may have had contact with since returning to the United States October 14.