It's a CCP propaganda piece. I find that "study" pretty fishy, the results would have been easy to verify if true.
Same as the CDC study they tried to use against Israel's study for natural immunity.
That's a very common ask especially among HN, is it not?
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
From my perspective it looks dubious and the only goal is to shift attention away from the RatG13 sample.