America’s coronavirus epidemic has taken a turn for the worse, with many more states showing sharp increases in daily cases compared with two weeks ago. How long will it take for researchers to catch up and develop more effective therapies against Covid-19?
The federal government’s Operation Warp Speed is working with drugmakers to accelerate the development and manufacturing of vaccines. Five candidates are in clinical trials, including one from Pfizer (on whose board one of us, Dr. Gottlieb, sits). More vaccines are expected…