U.S. researchers have found that cannabinoid acids extracted from cannabis sativa prevented infection of human epithelial cells. They conclude cannabinoids may also have the potential to treat COVID-19. Using a pseudovirus expressing the SARS-CoV-2 spike protein, the scientists found that cannabigerolic acid (CBGA) and cannabidiolic acid (CBDA) effectively blocked infection from the alpha (B.1.1.7) and beta…