[snowwrestler]

SARS-COV-2 is a single distinct virus with little variation. While it appears to be able to infect some domestic animals from human hosts, we have yet to find an animal reservoir. (If we had, that would be the end of the lab leak theory.)

And we have two vaccines against it with near 95% effectiveness, which compares with the estimated effectiveness of the smallpox vaccine.

If you want another point of comparison, look at measles. It’s not eradicated, but it’s not endemic either. In fact it is quite rare (far rarer than the flu) in counties with competent child vaccination programs.