[phoobahr]

Covid-19 is a vascular disease. Turns out several organs (not just lungs) have a lot of vascular area.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7556303/ https://www.frontiersin.org/articles/10.3389/fcell.2022.8248...

Similar to, say, an ABI but more so, there's no reason to think that cases would present identically. Complex systems-of-systems in homeostasis can be expected to have breakdown behaviour that clusters around some targets with a very very long tail of other less common features.