Top U.S. health officials go into quarantine after White House staff members tested Positive.

In the latest sign of worry that the coronavirus could be spreading through the senior ranks of the Trump administration. Three top White House officials tasked with overseeing the US pandemic response have gone into quarantine after they were exposed to the deadly virus. The three had contact with an infected White House staffer.

Three members of the White House coronavirus response team, including Dr. Anthony Fauci, went into quarantine after they came into contact with a White House staffer who tested positive for the infectious disease.

Representatives for Dr. Robert Redfield, the director of the Centers for Disease Control and Prevention, and Dr. Stephen Hahn, the commissioner of the Food and Drug Administration, confirmed the precautions on Saturday.

Dr. Anthony S. Fauci, the director of the National Institute of Allergy and Infectious Diseases, confirmed a CNN report that he had begun a “modified quarantine” after what he called a “low risk” contact.

The actions came as the Food and Drug Administration has approved the first antigen test that can rapidly detect whether a person has been infected — a development that promises to expand the nation’s testing capacity.