PING
Thanks for the ping. In addition to this Publication, (posted again below for reference)
https://pubmed.ncbi.nlm.nih.gov/22536382/
Early on in 2020, I also read a study from several years back of the initial SARS and the conclusion stated that since vaccines were not available and unlikely to be possible, the wisdom of continuing such studies was questionable.
I had that study marked, but my computer crashed, and I was not able to retrieve those files.