U.S. infectious disease expert Dr Anthony Fauci is facing calls to resign after a treasure trove of emails was posted online detailing his first response to the COVID-19 outbreak. The emails were first secured by BuzzFeed via a Freedom of Information Act request. Buzzfeed posted over 3,200 pages of emails from Dr Fauci’s inbox, from January to June 2020. In an exchange that angered conservatives, Dr Peter Daszak, a researcher linked to the both at the World Health Organization and the Wuhan Institute of Virology, thanked Dr Fauci for downplaying the possibility that COVID-19 first leaked from a lab. Dr Fauci was informed as early as February 2020 that COVID-19 could have been engineered in a Wuhan lab and accidentally unleashed on the world. America’s top medical adviser took the advice seriously, despite the theory of laboratory leaks being played down in public, instead insisting that COVID-19 was likely to have come from nature. In the aftermath of the email’s publication, some Republicans called on Dr Fauci to step down from his post in the White House and as director of the National Institute of Allergy and Infectious Diseases. Kentucky Senator Rand Paul said Dr Fauci may have been involved in a cover-up of the origins of the new coronavirus, an allegation that is unproven. The hypothesis that SARS-CoV-2, or COVID-19, was a man-made disease was considered a marginal theory but is now taken seriously. President Joe Biden has said he has tasked major U.S. intelligence agencies to investigate the origin of COVID-19 and report back to him within 90 days.