That’s precisely what I recall. All went well during the initial phase with no animals harmed or sickened, but upon challenge (exposure to the virus), they displayed an exaggerated response compared to unvaccinated animals —yes, a cytokine storm or something like that.
That’s how some of the conspiracy theories got started that the mRNA vaccines for Covid19 “killed all the animals” during testing. Of course the SARS1 vaccines were not mRNA vaccines, but whole killed virus.
At the beginning of the pandemic, it was easy to find articles about the SARS1 vaccine development attempts, but now my Google-fu fails me. :(
“That’s how some of the conspiracy theories got started that the mRNA vaccines for Covid19 “killed all the animals” during testing. Of course the SARS1 vaccines were not mRNA vaccines, but whole killed virus.”
We don’ need no stinking facts. It’s the story that counts. Don’t get in the way of a good conspiracy tale.
“At the beginning of the pandemic, it was easy to find articles about the SARS1 vaccine development attempts, but now my Google-fu fails me. :(”
I’ve noticed that too, when I’ve looked for the SARS-1 vaccine failure paper again to see if the ferrets are still dead. It may be due to the tidal wave of studies written after SARS-2. The early papers that we try to find again are buried under the deluge.