CDC Head Estimates U.S. Coronavirus Cases Might be 10 Times Higher Than Data Show

In a press briefing on June 25, Dr. Robert Redfield, director of the U.S. Centers for Disease Control and Prevention (CDC), said that the current official count of COVID-19 cases in the U.S. may actually be a drastic underestimate. Redfield said the new, much-higher estimate, is based on growing data from antibody testing, which picks up the presence of immune cells that react to SARS-CoV-2, the virus that causes COVID-19. People will test positive for antibodies to the virus if they have been infected—whether or not they ever got sick or even developed symptoms. Previously, testing was focused only on those with symptoms. But because so many who become infected with SARS-CoV-2 could either have mild disease or not know they were infected at all, Redfield said, current information on the burden of cases is an underestimate. “The traditional approach of looking for symptomatic illness, and diagnoses obviously under estimated the total number of infections,” Redfield said. “Now that serology tests are available, which test for antibodies, the estimates we have right now show about 10 times more people have antibodies in the jurisdictions tested than had documented infections.” That fact may also be contributing to the recent downward trend in the average age of people being diagnosed, since, as Redfield noted, those people were likely not being diagnosed in the past—younger people are less likely to experience the severe symptoms that bring...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized COVID-19 Source Type: news