Plus.Maths.org
List by Author: Marianne Freiberger
Vaccination: Where do we stand and where are we going? 
Where have the COVID-19 vaccines got us so far and where we are likely to be when the rollout is complete?
New perspectives in symmetry 
What is group theory and why is it such an exciting area of maths? Two experts explain.
R's not all you need 
When it comes to loosening COVID restrictions all eyes are usually on R — but it's also important to take account of prevalence.
How long until it's all over? 
We can't say for sure, but everything depends on how many people agree to be vaccinated.
Who should be vaccinated first? 
Modelling shows that old and vulnerable people should be prioritised.
How were the vaccines tested? 
Like any medical drug, vaccines are tested in large-scale randomised controlled trials.
How effective are the vaccines — and how do we know this? 
The efficacy of vaccines is estimated from trials, using statistical techniques.
Since herd immunity will protect us all, why do I need to get vaccinated? 
Because the vaccine may not stop transmission of the virus.
Are the vaccines safe? 
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.
What's the price for relaxing the rules? 
We are all longing to go into a lower tier, but this can come at a high price later on.
Dynamic numbers 
Holly Krieger has won a Whitehead Prize for work that combines number theory and dynamical systems.