A New York doctor who took the subway and went bowling in Brooklyn last night tested positive for Ebola today at New York's Bellevue hospital.

Dr. Craig Spencer, 33, was reportedly working with Doctors Without Borders in Guinea before flying back to the U.S. last week. The New York Times reports that Wednesday night, Spencer took the subway from Manhattan to Brooklyn and spent time at an unidentified bowling alley. It's unclear how he returned home to his Harlem apartment—according to reports, he took either a cab or Uber back.

He was hospitalized at Bellevue Thursday after he developed a 103 degree fever and gastrointestinal problems.