[vetvetdoug]

I possess a D.V.M. with over 75 hours alone in microbiology with experience in the lab working with veterinary pathogens, one of them FIP, a feline Coronavirus. My colleagues developed a vaccine against the FIP. First year was over ninety percent effective. The efficacy dropped off the next year to half and by the third year was ineffective. The virus mutated that fast. Same with the Canine coronavirus vaccine. Same with the Porcine Coronavirus. Even with the new technology using the mRNA I surmised that the virus would do the same with the Wuhan and am being proved correct with my hypothesis. Veterinarians learned to live with the disease and treat them accordingly.

Another RNA virus, FeLV, had a vaccine developed and was in use several years. Thinking we had a winner until highly aggressive tumors, fibrosarcomas, began to form at the injection sites. A vaccine cannot be considered safe until some time has elapsed. With the numbers of adverse reactions already reported, I foresee a man made epidemic coming.

[ProtectOurFreedom]

Look at the speed of mutation of the corona virus...

3,422 genomes from all over the world sampled and sequenced as of August 2021. Eleven main variants. 21A (Delta) is winning the dominance battle.

Source: Genomic epidemiology of novel coronavirus

[Stentor]

Thinking we had a winner until highly aggressive tumors, fibrosarcomas, began to form at the injection sites.

That'll get your attention.

[steve86]

“Same with the Porcine Coronavirus.”

It must be really tricky to give an injection to a porcupine!

But, seriously, thanks for an excellent comment.