SARS-CoV-2 and COVID-19, what's that? Some figures

COVID-19 is a disease caused by the SARS-CoV-2 coronavirus.

The first cases were reported in November 2019 in the city of Wuhan, Central China. After that initial report, the virus spread around the world.

Virus diameter: 1E-7 meters, 10,000 times smaller than a mustard seed.

Volume: 1E-18 liters, 50,000 billion times smaller than a drop of water

Mass: 1E-15 grams, 350 million times lighter than a very fine grain of sand

Time: Ten minutes to enter a cell and 10 hours to release small virions, 1,000 virions per cell.

Maximum quantity of virus measured by RNA tests on samples :

Nasopharyngeal: 1 billion per milliliter (high), throat: 10,000 per milliliter, stool: 100 million per gram of stool, sputum: 100 billion per milliliter.