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andybass63 t1_iz2qzkm wrote

Reply to comment by hellrising798 in Scientists believe bats first transmitted SARS-CoV-2 to humans in December 2019, and while the virus has since evolved into several variants such as delta and omicron, a new study indicates the virus is still highly transmissible between mammals. by MistWeaver80

Why? This has happened throughout history.

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junzilla t1_iz3a4tc wrote

Not like this. In history it was an animal virus infecting a human with similar virus and something called antigenic shift occurred in which the virus particles intermingled and formed a novel virus never before seen. This new virus would have the ability to infect that animal plus humans. This is different bc it seemingly infects ALL mammals.

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Detectorbloke t1_iz90356 wrote

>In history it was an animal virus infecting a human with similar virus and something called antigenic shift occurred in which the virus particles intermingled and formed a novel virus never before seen.

That is not true at all. Birds and humans can get bird flu for example.

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