The test postponement was a far more puzzling reversal, according to experts. Dr. Giroir said the move had been "extensively discussed" by members of the White House's coronavirus task force, and he named Dr. Redfield, Dr. Atlas, Dr. Fauci and Dr. Stephen M. Hahn, the Commissioner for Food and Drugs. In particular, he named Dr. Deborah L. Birx, the White House's coronavirus response coordinator, didn't. But he said Dr. Fauci was one of those who had "signed out".
In a brief interview, Dr. Fauci that he saw an early iteration of the guidelines and made no objection. However, the final debate on the revisions took place at a task force meeting on Thursday when Dr. Fauci had an operation under general anesthesia to remove a polyp on his vocal cord. In retrospect, he had "some concerns" about advising people not to be tested, as the virus could spread through asymptomatic contact.
"I'm concerned that it will be misinterpreted," said Dr. Fauci.
The latest version of the C.D.C. The guidelines published on Monday changed the agency's guidelines so that people who have been in close contact with an infected person – usually at least half a meter away from someone with the coronavirus – and do not necessarily need a test, " if they have no symptoms.
Exceptions could be made for “vulnerable” people, the agency said, or if health care providers or state or local health authorities recommend testing.
Dr. Giroir said the new recommendation is in line with existing guidelines for hospital workers and other frontline individuals exposed to "close exposures" to people infected with the coronavirus. These workers are advised to take reasonable precautions, e.g. B. wearing masks, social distancing, frequent hand washing, and monitoring for symptoms.
He argued that testing those exposed to the virus would be of little use because testing could only capture a single point in time and the results could make people feel wrong.