The COVID-19 emergency resulted in some amazing mathematical collaborations.
Epidemiologist Matt Keeling tells us about his work on the roadmap out of lockdown, whether the models have been too pessimistic, and what it's been like producing scientific results that carry so much weight.
There have been accusations that the modelling projecting the course of the pandemic was too pessimistic. Are they justified?
Mathematicians help with clearing the massive NHS backlog for heart conditions.
What can we expect from a disease for which natural or vaccine induced immunity wanes?
How long does it take for one person to infect another?
The doubling time for the Omicron variant seems to be scarily fast. But how do you calculate it?
Should we again reduce our social contacts? Is vaccinating 12-to-15-year-olds effective? What about boosters? The ready reckoner helps provide some answers.