How about it leaking from a research facility?
https://www.med.unc.edu/orfeome/files/2018/03/a-sars-like-cl...
another interesting find: http://ge.usembassy.gov/fact-sheet-activity-at-the-wuhan-ins...
The U.S. government has reason to believe that several researchers inside the WIV became sick in autumn 2019, before the first identified case of the outbreak, with symptoms consistent with both COVID-19 and common seasonal illnesses. This raises questions about the credibility of WIV senior researcher Shi Zhengli’s public claim that there was “zero infection” among the WIV’s staff and students of SARS-CoV-2 or SARS-related viruses.
Accidental infections in labs have caused several previous virus outbreaks in China and elsewhere, including a 2004 SARS outbreak in Beijing that infected nine people, killing one.
The CCP has prevented independent journalists, investigators, and global health authorities from interviewing researchers at the WIV, including those who were ill in the fall of 2019.
Any credible inquiry into the origin of the virus must include interviews with these researchers and a full accounting of their previously unreported illness.
It's a straightforward although time-consuming exercise to trace through Shi's research from the last 15 years and see that she and her team have clearly been developing a bioweapon based on SARS and gain of function stuff pasted in from bat coronaviruses and elsewhere.
https://thebulletin.org/2021/02/who-covid-19-didnt-leak-from...
"A Bayesian analysis concludes beyond a reasonable doubt that SARS-CoV-2 is not a natural zoonosis but instead is laboratory derived"
- https://www.prnewswire.com/news-releases/new-study-by-dr-ste...
The first 12 pages of the PDF read like a sci-fy thriller. Link to the PDF (scroll down the page a bit):