UPDATE:
It looks like the first proposals for allowing lawsuits and criminal action against the China are moving forward:

“We need to move forward on the International Criminal Court in the Hague and file formal charges against China. We also need to waive China’s sovereign immunity in the United States and take away the assets of Chinese government and the Chinese companies that operate in the United States.”–Steven Mosher

Rep. Lance Gooden (R-TX) recently proposed legislation to allow the Department of Justice (DOJ) to investigate China for potential release of a biological weapon reaching American soil. His proposed bill would amend the Foreign Sovereign Immunity Act to allow the DOJ to investigate the origins of the coronavirus pandemic and grant jurisdiction to U.S. courts over the matter, allowing the DOJ to file claims against the Chinese Communist Party in America.

Meanwhile there is growing recognition in the US and UK that the virus may have originated in a Wuhan lab: