Interesting, if you have time can you explain it to use non-doctors?
Those are two different studies first off.
Lots of this stuff isn't even peer-reviewed.
News takes thse studies that aren't peer reviewed and gives their own implication.
In this case they continue to push this idea that because anybody's are dropping off after a couple of months then this means no immunity and no vaccine.
Most of these studies are about the idea of how to tell who's recovered later.
these articles and the social media posts to go along with them continue to push this idea that this is abnormal (antibodies dropping off after a few months). This is what happens in all your antibodies when You're no longer exposed to a pathogen.
Make a bunch of different cells to kill it you create some short-term antibodies you create some long-term antibodies.
Like every other Corona virus some of us will potentially be able to get it again later. That's not what this means. It's basically a non-statement being pushed as news.