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Maths in a minute: "R nought" and herd immunity
What is herd immunity and what does it have to do with a number called R0?
What is herd immunity and what does it have to do with a number called R0?
We look at a crafty mathematical device which, among other things, has helped people understand what causes cholera.
How do mathematical models of COVID-19 work and should we believe them? We talk to an epidemiologist, who has been working flat out to inform the government, to find out more.