This is significant for a few reasons: 1) Coronaviruses have been with us for a long time and will be with us for even longer and the notion of a "universal coronavirus vaccine" does not seem realistic at all (I am not so sure it is that desirable either); and 2) The claim that "Finally, we urgently need universal coronavirus vaccines" seems as vacuous as the claim that the vaccines were gajillion percent effective. As Cornell reports in a tiny footnote[1], the only reason they are discovering a lot of these cases is because of constant surveillance testing. Who knows what else would one discover if every day one got tested for every known infectious agent?
If a whole lot of people who test positive never get sick, does it matter that they tested positive?
Is it better to focus on treating people who get sick without killing them and not destroying the lives and livelihoods of others while accepting that we are all going to die of something?
[1]: https://covid.cornell.edu/testing/dashboard/