Post-lockdown SARS-CoV-2 nucleic acid screening in nearly ten million residents of Wuhan, China (nature.com) (ca 0.003%,)
/www.nature.com/articles/s41467-020-19802-w.pdf
A mass screening programme of more than 10 million residents of Wuhan, China, performed afterSARS-CoV-2 was brought under control, has identified 300 asymptomatic cases of covid-19, none of which was infectious.
www.pnas.org/content/118/21/e2104547118
www.pnas.org/content/pnas/118/21/e2105968118.full.pdf
Covid-19: Asymptomatic cases may not be infectious, Wuhan study indicates
https://www.bmj.com/content/371/bmj.m4695
https://m.bild.de/bild-plus/regional/mecklenburg-vorpommern/mecklenburg-vorpommern-news/tausende-feierten-hansa-rostock-aufstieg-kein-corona-fall-nach-party-76609652.bildMobile.html
https://cormandrostenreview.com/icsls/
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774102
https://wwwnc.cdc.gov/eid/article/26/8/20-1142_article
https://www.thieme-connect.com/products/ejournals/pdf/10.1055/a-1174-6591.pdf