Overview of current infection cases: https://www.worldometers.info/coronav... Description of SARS-CoV-2 PCR test by WHO: https://www.who.int/docs/default-sour... Overview of SARS-CoV-2 Testkits: https://www.finddx.org/covid-19/sarsc... Asymptomatic/symptomatic rate of polio (comparable to SARS-CoV-2?): https://www.cdc.gov/vaccines/pubs/pin......