[Ed. – This can’t be a surprise, after NYC and Santa Clara County, CA (San Francisco metro) found infection rates much higher than thought. This isn’t bad news: it means at least half (or in some places most) of the people who contract the virus are asymptomatic and their immune systems quickly develop antibodies, just as they’re supposed to. Protect the elderly and people with high-risk underlying conditions, such as heart disease and diabetes. They represent virtually all of the death toll from COVID-19.]
About 6 percent of Miami-Dade’s population — about 165,000 residents — have antibodies indicating a past infection by the novel coronavirus, dwarfing the state health department’s tally of about 10,600 cases, according to preliminary study results announced by University of Miami researchers Friday.
The study, spurred by Miami-Dade County officials, will be an ongoing weekly survey based on antibody testing — randomly selecting county residents to volunteer pinpricks of their blood to be screened for signs of a past COVID-19 infection, whether they had tested positive for the virus in the past or not. The goal is to measure the extent of infection in the community.