Fauci made a huge mistake when he allowed NIH funding of what was essentially Chinese military bioweapon research. Sincerely doubt he knew at the time that he was actually funding a weapons program. He probably thought the Chinese might have some insights regarding coronavirus. Yet like most proud, overly praised men he could not admit his mistake and has since compounded his mistake with contorted pronouncements that have included perjury. People like Fauci, each with a fatal personality flaw have occurred throughout history and have altered events not for the better.
More likely, the Obama administration shut down U.S. research into coronaviruses to steer a monopoly to the Communist Chinese. (Why was Hunter Biden getting paid to sit on company boards and kick "10% to the Big Guy")?
The virus sickened employees at the Wuhan lab in the Fall of 2019 and it spread from there.
Fauci had to keep his mouth shut to cover his collusion into the crime of sabotaging U.S. research. Now that they've had enough time to cover up evidence of the crime of sending this work to China, they can pretend to investigate.