Chief Wiggum backs away screaming and shooting at a virus (The Simpsons).
Chief Wiggum has made some tactical errors here. Let’s investigate!

When someone with Covid breathes out, viral particles are most concentrated right next to their nose or mouth. The further away from them, the more diffuse the virus is — that’s why we socially distance.

You can imagine the viral particles in the air, in a dense cloud directly in…

Gareth Idris

Biomedical scientist trained at Monash University, currently at work as a Systems Engineer at Google.

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