Globalist Reality Report

[DarthYoda]

Here is some of what can define a new strain. It has to exhibit distinctly different physical and biological properties that go beyond generational mutations:

A virus strain is an isolate with a different biological property, such as binding to a different receptor, or having a distinctly different stability at higher temperatures, to give just two of many possible examples.

https://www.virology.ws/2020/05/07/there-is-one-and-only-one-strain-of-sars-cov-2/