This paper has fascinating details and carefully documents how recombination happens in individual bats. The SARS-CoV/SARS-CoV-2 mash up, BtSY2, is gulp inducing.

As story explains, this isn't all-or-nothing phenomenon. “I think of interference as a small push,” says Aubree Gordon....“It depends on population immunity and when that virus last circulated and flu and COVID vaccination rates.” But interference is a real phenomenon.

Ask Alessandro Sette. I'm not aware of any compelling evidence that SARS-CoV-2 depletion of T or B cells has any significant, longterm impact on the immune system's ability to replace them. SRCV2 doesn't target immune cells, and it's not HIV.

Here's the kind of problem you want to have: Uganda's Ebola cases are dwindling thanks to aggressive containment efforts, but success complicates plans for a rapidly organized trial to do first read-world test of vaccines against Sudan ebolavirus. science.org/content/articl…