SEVERAL WEEKS AGO in an op-ed for the Wall Street Journal , Dr. Marty Makary — a surgeon and a professor at the Johns Hopkins School of Medicine and Bloomberg School of Public Health — said that there are actually many more than the 28 million confirmed cases of the coronavirus in the U.S., possibly as much as 6.5 times more than that number. Between that group, and the roughly 15 percent of the country which has already received one dose of the vaccine, Makary argues that much of the nation is already protected from the virus. “There is reason to think the country is racing toward an extremely low level of infection,” Makary wrote. “As more people have been infected, most of whom have mild or no symptoms, there are fewer Americans left to be infected. At the current trajectory, I expect Covid will be mostly gone by April, allowing Americans to resume normal life.” Fast forward to today, new coronavirus cases in the U.S. rose 1.5% in the week ended Sunday, the slowest increase since th...