https://blogs.mercola.com:443/sites/vitalvotes/archive/2020/09/13/many-coronavirusinfected-hospital-workers-don_1920_t-have-symptoms.aspxA new study of 13 U.S. medical centers finds that 6% of staff tested positive for prior infection with coronavirus, with almost half having no idea they'd ever contracted coronavirus. Researchers conducted blood antibody testing of more than 3,200 doctorsenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)