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Message: <blockquote data-quote="Eltab" data-source="post: 7969992" data-attributes="member: 6803337">You're welcome, and thank you for the compliment.The gaps in our knowledge include things that ought to be Top Priority to find out.  One such is the answer to the question "How many people have / had COVID?". So far our testing has been limited and centered around people who come to the hospital.  Naturally this skews the data towards high death rate from infection.  Two studies reporting last weekend went out into cities - one in CA, one in MA - and asked passersby at random to give a blood sample for a survey.  The CA survey found 85 times as many people exposed as they expected.  The MA group found almost 1/3 of the samples had exposure.  The true number of exposed people in the US is likely in the tens of millions (my extrapolation), but the vast majority are no-symptom or "nasty flu" level.  But even if only .001 (one-tenth of one percent) of the total need intensive care, that is 10,000 people in peril of death.It would be interesting - and likely scary - to build a chart comparing total US cases, deaths, and mortality chance for several diseases, as of this year or last year (whichever has compiled data): common cold, flu, COVID-19, other coronaviruses (if known), West Nile virus, the Spanish Flu in 1919, and the cholera wave of the 1830s.  Also Ebola in W Africa 2016 and the Black Death sweeping Europe 1347-1350.</blockquote>