Dr. Anthony Fauci tested positive for COVID-19 on Wednesday and is currently experiencing “mild symptoms,” the National Institute of Allergy and Infectious Diseases said in a new statement.

The statement continued:

He is fully vaccinated and has been boosted twice. He is currently experiencing mild symptoms.

Dr. Fauci will isolate and continue to work from his home. He has not recently been in close contact with President Biden or other senior government officials. Dr. Fauci will follow the COVID-19 guidelines of the Centers for Disease Control and Prevention and medical advice from his physician and return to the NIH when he tests negative.

The 81-year-old is the director of the NIAID and the chief medical advisor to President Joe Biden. He’s led the government agency since 1984, but came into the national spotlight for being part of the White House Coronavirus Task Force under the Trump administration. He continues to be an advocate for the Executive Branch’s coronavirus policies under Biden.