Using artificial intelligence to improve traffic, protecting the environment and human health.

Where have the COVID-19 vaccines got us so far and where we are likely to be when the rollout is complete?

László Lovász has won one half of the Abel Prize 2021 for fundamental contributions to theoretical computer science and discrete maths.

What is group theory and why is it such an exciting area of maths? Two experts explain.

When it comes to loosening COVID restrictions all eyes are usually on R — but it's also important to take account of prevalence.

Why does the number e appear in models of exponential growth?

We can't say for sure, but everything depends on how many people agree to be vaccinated.

Modelling shows that old and vulnerable people should be prioritised.

Like any medical drug, vaccines are tested in large-scale randomised controlled trials.

The efficacy of vaccines is estimated from trials, using statistical techniques.

Because the vaccine may not stop transmission of the virus.

Yes the approved vaccines are safe. If you balance the risks, then taking the vaccine is much safer than taking your chances with COVID-19.