Basically the contents of the article are what would be expected for any virus and immunity. We have seen documented reinfections but it also comes back to how serious the second infection was, that is the important aspect not covered.Actually says a lot more than that.
I read it after your comment thinking it was another slanted ToSlow wacky post.
I think you might be slanted on the article because ToSlow posted the link.
Based on chaos theory, he had to post at least one thing that was not entirely BSC.