5 Things to Know About a COVID Vaccine: It Won’t Be a ‘Magic Wand’

President Donald Trump makes no secret he would like a COVID-19 vaccine to be available before the election. But it’s doubtful that will happen and, even after a vaccine wins FDA approval, there would be a long wait before it’s time to declare victory over the virus.Dozens of vaccine candidates are in various testing stages around the world, with 11 in the last stage of preapproval clinical trials — including four in the U.S. One or more may prove safe and effective and enter the market in the coming months. What then?Here are five things to consider in making vaccine dreams come true.1. A vac...