As with most things, the "obvious solution" is the naive and wrong solution. Sadly, that type of shallow thinking is prevalent in vegan cultism.
> No more coronas, bird flus, swine flus, mad cows, salmonellas, etc.
And no humans and no human civilization... Besides, the human population has grown 3000% the past few centuries. Far more people have benefited from meat than have been hurt by it. It's why pretty much every society on earth consumes meat.
Also, technically, if "No more coronas, bird flus, swine flus, mad cows, salmonellas, etc." is what you want, we'd either have to completely cordone humanity from nature altogether or we'd have to wipe out all animals. Most zoonotic diseases aren't transmitted via meat, it's transmitted by air, spit or bites ( from animals ). So no more hiking, parks, etc? Humans also get zoonotic diseases from pets, should we ban dogs,cats,etc?