US professors testify on Covid origins on Capitol Hill, Washington, USA - 18 Jun 2024
US Republican Senator from Kentucky Rand Paul (L) and US Republican Senator from Michigan Gary Peters prepare to attend a hearing about the origins of the Covid virus before the Senate Homeland Security and Governmental Affairs Committee in the Dirksen Senate Office Building in Washington, DC, USA, 18 June 2024. Earlier in the month, Anthony Fauci, the former head of the US National Institute of Allergy and Infectious Diseases, said accusations that his agency engineered a cover-up of Covid's origins was 'preposterous.'