Musician and Author, Ezra Williams, allowed me to use his 'childhood face' to create Ezzy. Click this link to hear Ezra talking about Ezzy the Virus and his own books...
I made this calculation at the beginning of the coronavirus pandemic, before scientists realised how much Covid transmission occurs via aerosols. It is the reason why I wrote 'Ezzy The Virus'
A single cough can contain 200 million virus particles (reference livescience.com). In a volume 1 meter cubed this could mean 200 million virus particles per metre cubed which translates in a room 2 x 2 x 2 meters (or 8 meters cubed) there will be 25 million virus particles in a 1 meters cubed space. In a bigger room 4 meters wide and height (4 x 4 x 4 or 64 meters cubed) there will be an estimated 3 million virus particles in a 1 meter cubed area. In other words if someone just coughs on the other side of a large room (without catching the virus particles in a tissue) then it is possible that everyone in the room will be exposed to air containing 3 million virus particles.