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Asymptomatic Covid-19 cases

How many Covid-19 cases are truly asymptomatic?

• 9 mins

How deadly is Covid 19?

Why there isn’t one single death rate.

• 9 mins

Vaccine numbers

How much protection will a new Covid-19 vaccine give?

• 9 mins

Inviting Covid for Dinner

If you go to a gathering of 25 people, what are the chances one of you has coronavirus?

• 9 mins

Tracking Covid 19

Which countries are doing well at keeping track of the virus?

• 9 mins

Vaccines: How safe and who gets it?

Is it too soon to approve for use? Plus choosing who goes first.

• 9 mins

QAnon: Child runaways and trafficking numbers debunked

Tackling statistics spread by conspiracy theorists.

• 9 mins

The economics of a Covid Christmas

What to consider when buying presents this year

• 9 mins

Numbers of the year: Part one

Tim Harford showcases statistics from 2020

• 9 mins

Numbers of the year: Part two

Tim Harford showcases statistics from 2020

• 9 mins

Ants and Algorithms

David Sumpter describes the algorithms ruling the world

• 9 mins

How effective is one Covid vaccine dose?

Calculating the protection given by the Pfizer/BioNtech vaccine

• 9 mins

Counting Covid’s impact on GDP

Which countries have done worse, and what can GDP tell us?

• 9 mins

The rapid test row

The huge row among scientists about rapid coronavirus tests.

• 9 mins

Glasgow vs Rwanda

Could life expectancy in some parts of Glasgow be worse than in Rwanda?

• 9 mins

How much Covid in the world?

Counting all the virus particles in every human on the planet.

• 9 mins

Covid 19 death count: Which countries are faring worst?

Tim Harford finds out if we can trust international comparisons with the available data.

• 9 mins

Why are US Covid cases falling?

From herd immunity to the weather, Tim Harford explores the theories

• 9 mins

Sainthood and Cup draws

Your chances of becoming a saint, plus football odds.

• 9 mins

The truth about obesity and Covid-19

Are countries with higher obesity rates suffering from more deaths?

• 9 mins

Deciding when to suspend a vaccine

Weighing up the risk of unproven side effects with stopping Covid-19

• 9 mins

In praise of Covid Data

How we came to expect dashboards full of statistics.

• 9 mins

Too fast for Minecraft?

Gamers raise suspicions over speed run times - are they right?

• 9 mins

Clot risks: The Pill versus the vaccine

AstraZeneca’s clot controversy turns attention on the contraceptive pill.

• 9 mins

How many swimming pools full of vaccine do we need

Adding together the doses for everyone on the planet.

• 9 mins

Will 2021 have more Covid deaths than 2020?

We ask if this year’s global death toll will surpass 1.8 million.

• 9 mins

Bayes: the clergyman whose maths changed the world

How an obscure theory came into fashion.

• 9 mins

Finding Mexico City’s real death toll

How two data detectives revealed the pandemic’s impact.

• 9 mins

Explaining maths without Numbers

Tim Harford speaks to mathematician Milo Beckman.

• 9 mins

The medical trial that proved Trump wrong

The Recovery Trial identified drugs that helped save lives.

• 9 mins