vaccines and treatments work.In a one-two-pandemic-punch on Nov. 9, Pfizer Inc. and BioNTech SE reported that their vaccine was highly effective in preventing symptomatic cases of Covid-19, while Eli Lilly & Co.’s treatment for those at early stages was granted a green light from US regulators.While the optimism helped offset reports of the virus’s resurgence around the globe, questions remain about the safety, efficacy and durability of emerging vaccines and treatments, as well as who they help most.
And as drugmakers prepare to receive emergency-use authorizations from the US Food and Drug Administration and other regulators around the world, they’re also tackling manufacturing-related hurdles, continuing to negotiate supply deals with.