Clyde...what in blue hell are you talking about? You don't trust this vaccine that's been tested on millions of people yet as a counter-argument you cite a study done on chickens, with a completely different virus?
Even then, did you bother thinking about what you've read in the study? Here's an excerpt from it:
"These vaccines also allow the virulent virus to continue evolving precisely because they allow the vaccinated individuals, and therefore themselves, to survive,” said Venugopal Nair, who led the research team. He is the head of the Avian Viral Diseases program at The Pirbright Institute."He is saying that the virus evolves in vaccinated chickens because the unvaccinated ones **** die from it. How is that an argument against vaccination? Also how is that test with a different, deadlier virus at all relevant to COVID, which has a ~98% survival rate even amongst the unvaccinated?
Dude, it's straight-forward. The variants emerge when the virus replicates in the body. There is an infinitesimal chance of a variant mutation emerging during a replication, but give it trillions x trillions of replications and eventually variants will come out.
Vaccinated people have a smaller viral load. They also carry the virus for a shorter period of time. Thus mathematically, a virus carried by a vaccinated person has a much smaller amount of replication and the odds of a variant coming from a vaccinated person are thus proportionally lower compared to an unvaccinated one.