Vaccine news latest: Oxford-AstraZeneca promising results, FDA authorizes Regeneron’s treatment

On Monday, AstraZeneca announced that its experimental coronavirus — which was developed in conjunction with U.K.'s University of Oxford — vaccine has shown an average efficacy of 70% in large-scale trials. Meanwhile, the FDA issued an EUA (emergency use authorization) for Regeneron's antibody cocktail to treat the coronavirus in high-risk patients. Yahoo Finance’s Anjalee Khemlani breaks down the latest on the vaccine news front.