Research has been done and it is now public information that cannabinoid acids CBDA and CBGA may prevent Covid-19 infection and help treat those who have been infected.
According to research led by Richard Van Breemen who works with Oregon State’s Global Hemp Innovation Center in the College of Pharmacy and the Linus Pauling Institute, in collaboration with scientists at the Oregon Health & Science University, two cannabinoid acids found in hemp can bind to the spike protein of SARS-CoV-2. These cannabinoid acids are CBGA (cannabigerolic acid) and CBDA (cannabidiolic acid). When these cannabinoid acids bind to the spike in protein, they can prevent the virus from entering cells and causing infection. This could offer new ways to prevent and treat Covid-19.
Image from Van Breemen's work:
In their study abstract, which you can read here, the researchers wrote, “…with a long history of safe human use, these cannabinoids, isolated or in hemp extracts, have the potential to prevent as well as treat infection by SARS-CoV-2”.
Van Breemen also stated, “Our data show CBDA and CBGA are effective against the two variants we looked at, and we hope that trend will extend to other existing and future variants.” as well as adding that CBDA and CBGA blocked the action of emerging variants of the virus that causes Covid-19 and that, “our research showed the hemp compounds were equally effective against variants of SARS-CoV-2, including variant B.1.1.7, which was first detected in the UK, and varian B.1.351, first detected in South Africa.”
So, although nothing is definite we can conclude that the research of cannabinoids helping prevent is promising and will continue.