- Nov 2005
Thanks for answering.The number 19 is not the number of strains - - 2019 is the year it started.
COVID-19 = COrona VIrus Disease 2019,
To reiterate the point I was making in that section (not just that one sentence)...
There are are MULTIPLE STRAINS of the coronavirus and not just ONE coronavirus strain.
There were previously seven identified distinct strains of "coronavirus".
Also, there are MULTIPLE STRAINS of the flu and not just one.
But the reality of the situation is that while we survive MULTIPLE strains of the flu each year, we are being SEVERELY impacted by ONE COVID-19.