That doesn't match up with any data published so far that I've seen on recovered antibodies and reinfections...or my own experience. All the cohorts studied showed a good immune response after infection and very rare reinfections. ..for how long is still being followed, but they all support that the immune system works...and it's a good thing since the vaccine depends on it
Question: Do these pts have prior documented infections and a normal immune systems, or are they ones that assumed the flu-like illness they got last Nov was "definitely covid" based on self diagnosis, because I think that happened a lot last fall in my area. When pressed further, their reinfection was really their first infection. I'm seeing a steady flow that are non recovered, non vaccinated ...and none of them are young and healthy....either over 50 , obese or lung issues. This consistency was a bit reassuring that risk was predictable, so I really hope that what you are experiencing is an outlier,misrepresentation by pts, or some other explanation.