SARS-CoV-2 is the name of the pandemic virus first identified in Wuhan, China in December 2019.  Why that name?  Because it looked genetically similar to the virus that caused the 2003 SARS outbreak.  You've regularly seen the COVID-19 virus as a sphere with what looks like golf tees sticking out of the surface.  First, this virus is so small that you can't see it using an ordinary microscope. Bacteria are between 0.2 and 2 micrometers, so you can't even see this in a compound light microscope. Viruses are not measured in micrometers, but nanometers, which is one-thousandth a micrometer.  The coronavirus is just 50 nanometers across, or 0.05 micrometers. But visible light ranges from 300 to 700 nanometer, so light photons are too large to distinguish something so small as 50 nm. You thus turn to an electron microscope, invented in 1930, but improved to what is now called a Scanning Electron Microscope, or SEM.   Yes, instead of photons, something so small as an electron mus

How bad are the  numbers in the U.S . for new cases/day and new deaths/day?  World Bank information for 2022: January 10  1.4 million new cases and 2,014 new deaths March 31        12,000    new cases and    516 new deaths May 11         163,335    new cases and    949 new deaths May 13           95,937    new cases and    393 new deaths From  Worldometer :  for the U.S. Total cases two weeks ago      546,732 Total cases the past week        498,640 Weekly case % change           -9% Total deaths two weeks ago        2,225 Total deaths the past week          1,544 Weekly death % change         -31% Other interesting info from that  Worldometer  site: #2 in cases was Germany.  They dropped in cases 24% and deaths 2% #3 in cases was Taiwan.  They jumped in cases 83% and deaths 192% #4 in cases was Australia.  They increased in cases 20% and had no change in deaths #5 in cases was Japan.  They increased in cases 54% and deaths 17% These countries increased in number of cases: Botswana  46

From  Worldometer :            DAY   USA    WORLD    Brazil       India     South Africa June     9     1093    4732        1185       246         82 July    22     1205    7128         1293     1120        572 Aug    12     1504     6556       1242       835        130 Sept     3     1094     5886        830    1083        174              9     1208     6222       1136     1168          82 Oct      8      957     6420          730      967        160             9      909     5806          658      929       139           10       723     5162            544      921        126              11       325     3874            270       813       107           12       316     3757            203       710        83           13       843    5006           354       723       165 Summary:   Well, back to the expected, which is not good.   The U.S. new cases figure was 51,534, which means that around the time of the presidential election on November 3, the deaths/day figure will be at le