Just visited ESPACENET which is the on-line European Patent Office.
On a whim I searched “vaccine covid-19”
It returned 369 results, the vast majority of which were Chinese. There were a few Russian, Korean, Australian and US results.
Of late I have noted China going patent crazy, filing like there is no tomorrow.
Check these two out!
Looks like I am going to be doing some Sherlock Holmes or should that now be Hercule Poirot, tomorrow.