Two infectious-disease experts I spoke with believe that the number of deaths attributed to covid is far greater than the actual number of people dying from covid. Robin Dretler, an attending physician at Emory Decatur Hospital and the former president of Georgia’s chapter of Infectious Diseases Society of America, estimates that at his hospital, 90 percent of patients diagnosed with covid are actually in the hospital for some other illness. “Since every hospitalized patient gets tested for covid, many are incidentally positive,” he said. A gunshot victim or someone who had a heart attack, for example, could test positive for...