Dr. Anthony Fauci, a public health official who became the face of US government efforts to contain the coronavirus pandemic, tested positive for Covid-19 on Wednesday, the National Institutes of Health (NIH) said in a statement. Fauci, the chief medical adviser to President Joe Biden, was experiencing mild symptoms, the NIH said in a statement. He has not recently been in close contact with Biden, it said. The NIH said Fauci, 81, was fully vaccinated and twice boosted, and will self-isolate and continue to work from home. The longtime director of the National Institute of Allergy and Infectio…