On 23 October 2014, a doctor in New York City tested positive for the Ebola virus. Craig Spencer, 33, had recently returned from Guinea, where he provided care for Ebola-infected patients for the group Doctors Without Borders.
Spencer was taken to Manhattan's Bellevue Hospital after reporting a fever of 103 degrees. The New York Times reported city health officials raced to locate anyone who came into contact with Spencer in the time before he fell ill, and the doctor had visited public spaces on the night of 22 October 2014:
Even as the authorities worked to confirm that Mr. Spencer was infected with Ebola, it emerged that he traveled from Manhattan to Brooklyn on the subway on Wednesday night, when he went to a bowling alley, and then took a taxi home.
