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Uncynical_Diogenes t1_jcm5rm0 wrote

They might carry it, sure, but I’d argue it was likely their great-grandparent^nth that was actually infected.

I think this line of inquiry is more about re-emergence of previously-dormant ERVs. As a human, some ~1-8% of my DNA is ERVs, depending on who you ask, but I’m pretty confident that I was never infected by any of them myself. I was just born carrying them.

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