大象传媒

How effective is one Covid vaccine dose?

Calculating the protection given by the Pfizer/BioNtech vaccine

• 9 mins

Counting Covid鈥檚 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?

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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.

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Why are US Covid cases falling?

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

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Sainthood and Cup draws

Your chances of becoming a saint, plus football odds.

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The truth about obesity and Covid-19

Are countries with higher obesity rates suffering from more deaths?

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Deciding when to suspend a vaccine

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

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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?

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Clot risks: The Pill versus the vaccine

AstraZeneca鈥檚 clot controversy turns attention on the contraceptive pill.

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How many swimming pools full of vaccine do we need

Adding together the doses for everyone on the planet.

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Will 2021 have more Covid deaths than 2020?

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

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Bayes: the clergyman whose maths changed the world

How an obscure theory came into fashion.

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Finding Mexico City鈥檚 real death toll

How two data detectives revealed the pandemic鈥檚 impact.

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Explaining maths without Numbers

Tim Harford speaks to mathematician Milo Beckman.

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The medical trial that proved Trump wrong

The Recovery Trial identified drugs that helped save lives.

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The Seaspiracy 鈥渧irtually empty ocean鈥� claim

Why it鈥檚 unlikely our oceans will be virtually empty by 2048.

• 9 mins

Wales Vaccine Success

How to distribute jabs efficiently; plus adding 28 to 47

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The doubling of life-expectancy

The story of how data helped extend our lives

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The origins of Covid

How similar are the Covid strains?

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Maths and the Mayflower

Are there really 35 million descendants of the Mayflower alive today?

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Is Ivermectin a Covid 鈥榳onder drug鈥�?

What do we know about the efficacy of Ivermectin as a treatment for Covid-19?

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Are there 40 million Nigerians on Twitter?

Recent reports have claimed that Nigeria has 40 million Twitter users 鈥� but is this true?

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Long Covid and Vaccinating Children

The world watches as the UK lifts its remaining Covid restrictions

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The Rise of Delta

Where鈥檚 this new Variant spreading and what can be done to stop it?

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Breaking climate records

The odds and probability behind record-breaking temperatures

• 9 mins

Jab fears explained: a base rate fallacy

Why increasing Covid infections amongst the vaccinated isn鈥檛 necessarily bad news.

• 9 mins