Episodios
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If we brought together all the Covid 19 vaccine needed for the whole world, how much space would it fill up? An Olympic size swimming pool? We do some back of the envelope sums.
Plus - we look at the increased risk of clots from pregnancy. Last week we looked at the increased risk of getting a clot from taking the combined contraceptive pill and compared it to risk of possible rare clots identified following the Astra Zeneca jab. How does pregnancy compare? -
The Astra Zeneca Covid 19 jab remains in the headlines because some regulators have concluded that it may raise the risk of a very rare type of blood clot, albeit to a risk that is still very low. In the past few weeks a number of countries have said they will limit its use to older age groups. But people are drawing comparisons to the contraceptive pill which is well-known to increase the risk of clots and asking why this level of risk is tolerated. Is this comparison fair?
Tim Harford speaks to Professor Frits Rosendaal from the University of Leiden in the Netherlands and Susan Ellenberg, professor of biostatistics at the University of Pennsylvania. -
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The impressive speed records of a well-known gamer called Dream for the video game Minecraft have come under scrutiny. Many say that Dream has completed speed runs in such a fast time that it doesn’t seem possible. Are these suspicions correct? We speak to stand-up mathematician Matt Parker who has looked at the probabilities on the elements of chance in the game to see if these records seem plausible.
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On this week’s programme we talk to Clare Griffiths from the UK’s coronavirus dashboard and Alexis Madrigal from the Atlantic Magazine’s Covid Tracking Project in the US.
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Many countries recently decided to suspend the use of the AstraZeneca coronavirus vaccine over fears it was increasing the risk of blood clots. The European Medicines Agency and the WHO called on countries to continue using the vaccine but regulators in individual countries opted to be cautious, waiting for investigations to take place. But why?
Tim Harford explores the risks of blood clots and weighing up whether it was necessary to suspend using the vaccine. -
A widely reported study claims that 90% of Covid 19 deaths across the world happened in countries with high obesity rates. While an individual’s risk of death is increased by having a high Body Mass Index, the broader effect on a country’s death rate is not what it seems.
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Tim Harford explores the chances of becoming a saint, inspired by a throw away comment by the detective on the TV drama ‘Death in Paradise.’
Plus, a listener has a question about the recent Europa League Draw for the final knockout round. He spotted that none of the teams face a rival from their own country. What were the chances of that happening? -
Cases of Covid 19 began to soar in the US in the autumn. By early January there were around 300,000 new cases a day. But since then the numbers have fallen steeply. What caused this dramatic drop? From herd immunity to the weather, Tim Harford explores some of the theories with Derek Thompson of The Atlantic magazine and Professor Jennifer Dowd, deputy director of the Lever Hume Centre for Demographic Science at the University of Oxford.
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Are different countries counting deaths from Covid 19 in the same way? Tim Harford finds out if we can trust international comparisons with the data available.
We discover Peru currently has the most excess deaths per capita over the course of the pandemic, while Belgium has the highest Covid death count per capita.
Tim speaks to Hannah Ritchie from Our World in Data and John Burn Murdoch, senior data visualisation journalist at the Financial Times. -
The UK was the first European country to surpass 100,000 deaths from Covid 19. The UK has one of the worst death rates. But can we trust the numbers? Many of our listeners have asked us to investigate.
Long Covid is widely acknowledged as being a growing problem, but what are the numbers involved? Just how many people have longterm symptoms after their initial infection?
There have been reports that we are drinking more in Lock Down. We examine the evidence.
Dr Natalie MacDermott was one of the first guests invited on to More or Less to talk about the new coronavirus early last year. We revisit what she said then and what we know now. Plus, she tells of her own struggles with Long Covid. -
If we brought all the virus particles of the Sars-CoV-2 virus from every human currently infected, how much would there be? This was a question posed by one of our listeners. We lined up two experts to try to work this out. YouTube maths nerd Matt Parker and Kit Yates, senior lecturer in mathematical biology at the University of Bath, UK give us their best estimates. One believes the particles would fit into a small can of coke, the other a spoonful.
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Are exports to the EU from the UK down 68% since Brexit? This apocalyptic statistic is being widely reported, but does it really tell us what’s happening at Dover and Folkstone?
Ministers are tweeting reassuring numbers about flammable cladding on high rise buildings. We’re not so sure.
Is it really true that one in five people are disabled?
Plus, if you assembled all the coronavirus particles in the world into a pile - how big would it be? -
Tim explores a shocking claim that life expectancy in some parts of Glasgow is less than it is in Rwanda. But is that fair on Glasgow and for that matter is it fair on Rwanda? And a listener asks whether loss of smell is a strong enough symptom of Covid that it might be used to help diagnose the virus, replacing rapid testing.
Presenter: Tim Harford
Producer: Chloe Hadjimatheou
(Left: Rwanda refugee - photo Reza. Right: Glasgow homeless man - photo Christopher Furlong / both Getty images) -
Prominent Labour politicians have claimed teachers are more likely to catch Covid-19, is that true?
England’s Test and Trace programme has been widely criticised, has it raised its game in recent months? A ferocious row has broken out between scientists about how effective fast turnaround Lateral Flow tests are, and how they should be used. We examine the data.
Plus, we examine a claim from Extinction Rebellion that British butterflies have declined by 50% since 1976. -
A ferocious row has broken out among scientists about new coronavirus tests. Lateral flow tests provide results within minutes and some scientists believe they are offer accurate enough results at a speed that could allow us to resume business as usual. Others think they are so poor at detecting the virus that they could pose a huge danger.
In this week’s More or Less, Tim Harford looks at the evidence and what we know about these new tests. -
Since the start of the pandemic there have been many warnings that people might die not just from the coronavirus itself, but also if they didn’t seek medical help out of fear that hospitals might be dangerous. Is there any evidence that this has happened? David Spiegelhalter is on the case.
The UK is in lockdown, but tens of thousands of people a day are still testing positive for Coronavirus. Where are they catching it? Grim data on drug deaths in Scotland has been called into question on social media. We ferret out the truth. Plus, what can venomous snakes tell us about the government's plan to increase the number of people self-isolating? -
Since the start of the pandemic there have been many warnings that people might die not just from the coronavirus itself, but also if they didn’t seek medical help out of fear that hospitals might be dangerous. Is there any evidence that this has happened? David Spiegelhalter is on the case.
The UK is in lockdown, but tens of thousands of people a day are still testing positive for Coronavirus. Where are they catching it? Grim data on drug deaths in Scotland has been called into question on social media. We ferret out the truth. Plus, what can venomous snakes tell us about the government's plan to increase the number of people self-isolating? -
GDP figures for the period covering lockdown appear to show that the UK suffered a catastrophic decline, worse than almost any other country. But as Tim Harford finds out, things aren’t quite as bad for the UK as they might seem - though they might be worse for everywhere else.
Also, alarming claims have been circulating in the UK about the number of suicides during lockdown. We look at the facts.
There is support for the issues discussed in the programme at help.befrienders.org
Presenter: Tim Harford
Producers: Nathan Gower and Chloe Hadjimatheou
(Robots work on the MINI car production line at the BMW plant in Cowley, Oxford, UK. Credit: Tolga Akmen/ Getty Images) -
The vaccine rollout continues: how long will it take before we see the benefits, and what benefits will we see? Figures suggest the UK’s economy performed worse than almost anywhere else in the world during the pandemic. But are the numbers misleading us? Alarming claims have been circulating about the number of suicides during lockdown. We look at the facts. Plus, will UK fishing quotas increase two thirds in the wake of Brexit? We trawl through the data.
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A lot has changed since More or Less was last on air. We give you a statistical picture of the second wave: how bad is it, and is there hope? The new vaccine regime is to delay the booster shot of the Pfizer vaccine for up to 3 months. But is the first dose 52% or 90% effective? A new virus variant is meant to be 70% more transmissible, what does that mean? Plus, one of our youngest loyal listeners has a question about her classmates names.
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