How accurate are the swab tests used to diagnose Covid-19? Read more
False negatives, testing capacity and pheasants
How accurate are the swab tests used to diagnose Covid-19?
Antibody tests, early lockdown advice and European deaths
Are more people are dying of Covid-19 in the UK than all the EU countries put together?
Quarantine, Test and Trace and BODMAS
Is it true that Covid-19 mostly kills people who would die soon anyway?
Child Poverty, School Inequality and a Second Wave
As lockdown eases, why hasn't there been a spike in infections?
Why Did the UK Have Such a Bad Covid-19 Epidemic?
Bad decision-making, bad advice, or bad luck?
Hawaiian Pizza, Obesity and a Second Wave?
Covid-19 cases are rising in the UK, is it a sign of a second wave of the virus?
A-level algorithms, poker and buses
We unpick the A-level algoshambles and discover what poker teaches us about statistics.
Covid plasma therapy
Claims about a Covid-19 treatment, breast cancer screening, and 18th century sex workers.
Schools and coronavirus, test and trace, maths and reality
Evidence on Covid-19 risks in schools, data on contact tracing, and a philosophical query.
Covid cases rising, a guide to life’s risks, and racing jelly-fish
How worrying is the UK’s jump in cases? Plus balancing risks and the speed of jelly-fish.
Covid testing capacity, refugee numbers, and mascara
Confusing claims on lab capacity, the UK’s record on asylum, and the volume of eyelashes.
Covid curve queried, false positives, and the Queen’s head
How fast are coronavirus cases doubling? Plus testing confusion and a royal face-off.
'Record' Covid cases, Trump on the death count, and ant pheromones
Case counts in perspective, a suspect stat from the US, and life lessons from insects.
Spreadsheet snafu, ‘Long Covid’ quantified, and the birth of probability
Missing coronavirus case data, long-term symptoms, and a big mathematical moment.