An interactive model of Covid-19 transmission between two people from The British Medical Journal.  This fantastic article contains an interactive model of the risk of transmission between two people.  The Proxximos system contains algorithms to model the risk of transmission much like this model – so it is a great visualisation of the complexity of accurately measuring risk. Our system will continually improve the risk estimation as it measures what happens in real scenarios and then uses machine learning to build better models.

Visualising SARS-CoV-2 transmission routes and mitigations | The BMJ