Those facts come from the Chinese studies. They are not peer reviewed.
The reinfected comes from the different strains of virus. It appears there are several mutations. The most common are the S (which is what is on the west coast.) The second is the L, which is in Italy.
If you had S and recovered, it “appeared” that if you got hit with L it would create a pretty fast cytokine (sp) storm. There was some research on it..but I haven’t seen anything more.
I saw the study (again, not peer reviewed) regarding the nervous system impact the other day. I haven’t seen anything else about it.
There ARE sources for some of this stuff. But its like pinning down a rumor at the office—it is elusive. And honestly, in most cases the people passing them along read only the headline. They haven’t read the study—which invites more people to look for things; or they misunderstood the purpose and results of the research.
I spent a little time looking into the “S” and “L” issue.
So far as I can tell, there is nobody saying that we know facts about it. It is still too early. But the reports about studies from medical sources (rather than the “newsweek” type stories), suggests:
That “L” and “S” are not different enough to allow separate infections; sources say a vaccine should treat both as well.
That “L” is not particularly “worse” than “S”, the specualation is more that “L” became wider spread, so that’s what they saw a lot more of. Or that ‘L” is better at transmission, while “S” might be more stable, so we are treating people with “L” a lot more than “S”.
Viruses mutate a lot, and that is how we can track generations; most mutations are benign, some are bad for the virus. It is rare that a virus mutates during an outbreak in a way that becomes worse for humans. There are just too many factors; a single mutation can’t do it.