The family name, YAN sounds familiar.
Could it be the same whistleblower, Li-Meng Yan, who At the time of the COVID-19 pandemic, was employed at the Hong Kong School of Public Health, Hong Kong University, conducting research specialized in virology and immunology?
I think so. She is now in the US seeking asylum. See here:
https://bgr.com/2020/07/13/coronavirus-origin-human-to-human-spread-china-coverup-whistleblower/
and here:
https://www.youtube.com/watch?v=NUbrE1v4kuQ
Yes, it’s Yan Li-Meng.
Same person (not guilty)