Seems the first research dates back to 2007 on ASA for respiratory virus treatment in general: https://pubmed.ncbi.nlm.nih.gov/17324159/
I found an interesting article in German about why development of that treatment has been discontinued, but nothing in English unfortunately, except for a patent:
https://patents.google.com/patent/EP2249866B1/en
German article:
https://www.nzz.ch/wissenschaft/aspirin-koennte-auch-gegen-v...
Seems the first research dates back to 2007 on ASA for respiratory virus treatment in general: https://pubmed.ncbi.nlm.nih.gov/17324159/
I found an interesting article in German about why development of that treatment has been discontinued, but nothing in English unfortunately, except for a patent:
https://patents.google.com/patent/EP2249866B1/en
German article:
https://www.nzz.ch/wissenschaft/aspirin-koennte-auch-gegen-v...