Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases (NIAID) and the face of the U.S. COVID-19 response, has tested positive for the virus, .
Fauci, who is fully vaccinated and has been boosted twice, is experiencing only mild symptoms and will work from home, NIH stated.
He tested positive on a rapid antigen test, and hasn't recently been in close contact with President Biden or other senior government officials.
NIH said Fauci will follow CDC guidelines, as well as "medical advice from his physician," and will return to work when he tests negative.
Managing the COVID-19 response since early 2020 thrust the veteran infectious disease expert into the spotlight, especially as he navigated the Trump administration's influence on COVID-19 policies, which often clashed with scientific advice.
Fauci said in a National Geographic documentary released last year that he took issue with the administration's aggressive treatment of the press, press conferences not led by scientists, and the former president's penchant for off-the-cuff remarks.
Fauci was often a political lightning rod and found himself the subject of death threats and in need of additional security. But that didn't stop Fauci, who had honed his political skills during the AIDS pandemic in the 1980s, where he learned that, "You don't get intimidated. You don't take sh*t from anybody," he said in the documentary.