The variety of sales figures and pipeline updates for antiviral drugs and vaccines for SARS-CoV-2 coming out in various drug makers’ second-quarter earnings illustrate just how much the COVID-19 treatment landscape has changed over the past year, with some drugs once viewed as promising now pulled from shelves while next-generation products that could treat newer strains inch toward the market.
To be sure, some of the products that have been around for a while are still going strong. Pfizer...







