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PODCAST

Unexpected Elements

BBC World Service

The news you know, the science you don’t. Unexpected Elements looks beyond everyday narratives to discover a goldmine of scientific stories and connections from around the globe. From Afronauts, to why we argue, to a deep dive on animal lifespans: see the world in a new way.

science

All Episodes

52:32

Coping with Covid

Unexpected Elements ·

2021/01/03

This has been an incredible year for scientific advance and collaboration, epitomised by the roll out of vaccines that didn’t exist a year ago, against a virus that no one had ever heard of . And yet at the same time its been a year of incredible frustration. We are stil largely using the same methods to counter the virus that were used in past pandemics, going back a hundred years. Here we look back at key the findings on who is most susceptible and why, and ask how to improve the strategies for

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67:48

2021 the year of variants

Unexpected Elements ·

2021/01/02

In our first programme of the year, we gathered a group of scientific experts directly involved in analysing the structure and impact of the SARS- Cov-2 coronavirus. There were concerns over the emergence of two new variants, Alfa and Beta, especially whether these variants might spread more quickly or outmanoeuvre the suite of new vaccines that were about to be rolled out. And now with Omicron, the same questions are being asked about this variant’s ability to spread and overcome our defences

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53:56

A year with Covid -19

Unexpected Elements ·

2020/12/27

It was the end of December 2019 when reports of a new flu like infection first came out of China. Within weeks millions of people were in lockdown as the virus took hold around the world.In this programme we look back and revisit the scientists who were ready, those who had been studying bat coronaviruses and warning of their pandemic potential. The scientific response was immediate. The coronavirus tests now used across the world were being developed within a few hours of news of the outbreak in

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67:45

Covid -19 – Mutations are normal

Unexpected Elements ·

2020/12/20

This week the UK Health secretary raised concerns over a new variant of SARS- CoV-2 currently spreading across Europe. Viruses mutate all the time so it’s no surprise that a new form of the one causing Covid -19 would emerge. However, virologist Ravi Gupta who analysed the new strain says we need to be weary in case future strains mutate in ways that could overcome vaccines.Immunologist Akiko Iwasaki is part of a team looking at the impact of Covid -19 on our immune system. Her research has

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55:49

The unchecked spread of Covid-19 in Manaus

Unexpected Elements ·

2020/12/13

Pictures of coffins and mass graves seen by satellites showed that Manaus has been badly affected by Covid- 19. Now analysis of blood samples shows the extent to which the virus took hold in the Amazon city earlier this year. Investigators Ester Sabino and Lewis Buss from Brazil’s University of Sao Paulo discuss how and why the virus spread.Humanity has been modifying the environment for millennia, but have we now reached a point where it’s all too much? An analysis by Emily Elhacham from Tel Aviv

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66:54

Freak weather getting even freakier

Unexpected Elements ·

2020/12/08

This year’s Atlantic hurricane season has seen a new record for severe storms says Climatologist Michael Mann. He says warming oceans are one of the drivers.And Australia has seen spring temperatures hit new highs. Climate scientist Sarah Perkins – Kirkpatrick says it’s all the more remarkable as weather patterns are currently in a cycle associated with cooler temperatures.Where exactly did SARS- COV-2 emerge from? That’s one of the questions for a WHO fact-finding mission to China looking into the

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64:23

Vaccines – the Covid confusion

Unexpected Elements ·

2020/11/29

While developing new treatments drug companies usually release little useful information on how the clinical trials are progressing. However with the world’s attention on potential vaccines against Covid -19, the usually dull data on the progression of each trial step is subject to huge scrutiny. It doesn’t help to clarify things says epidemiologist Nicole Basta when that data raises questions about the rigour of the trial itself. This seems to be what happened with the latest Astra Zeneca, and

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63:42

Covid- 19 – Good news on immunity

Unexpected Elements ·

2020/11/22

Tests on patients for up to 8 months following their infection with SARS- CoV-2 suggests an immune response can persist. Alessandro Sette and Daniela Weiskopf at the La Jolla Institute in California are optimistic this could mean vaccines would also confer long lasting immunity.An analysis of samples from Kenya’s blood banks by Sophie Uyoga at the KEMRI-Wellcome Research Programme reveals far more people in Kenya contracted the virus than was previously know. The figures mean Kenya has similar

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66:17

Covid-19 defeats US Marines

Unexpected Elements ·

2020/11/15

The WHO is working with China to try and pinpoint the source of SARS- COV-2. Sian Griffiths, Emeritus Professor of Public Health at the Chinese University of Hong Kong says there are lessons we can learn from the investigation she led into the original SARS outbreak back in 2003. That inquiry revealed how SARS had spread from bats to humans via civet cats. A Covid-19 vaccine claims to be 90% effective. It uses genetic material, messenger RNA. Daniel Anderson of Harvard MIT Health Science tells us

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59:18

Coronavirus spreads from mink to humans

Unexpected Elements ·

2020/11/08

All the farmed mink in Denmark are to be killed. Around 17 million. This is because they have SARS COV-2 coronavirus circulating among them and some humans have contracted a new strain from the animals. The scientific detail is sketchy, but Emma Hodcroft at Basel University pieces together a picture of what this means for tackling the virus. Typhoon Goni and hurricane Eta are two very powerful tropical cyclones. But the way these storms are recorded differs by geographical location and recording

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63:32

Osiris Rex stows asteroid material

Unexpected Elements ·

2020/11/01

Last week NASA’s Osiris-Rex mission successfully touched down on asteroid Bennu’s crumbly surface. But the spacecraft collected so much material that the canister wouldn’t close. NASA systems engineer Estelle Church tells Roland Pease how she and the team back on Earth performed clever manoeuvres to remotely successfully shut the lid.As winter draws on in the North, and people spend more time indoors, there’s considerable debate about the conditions in which SARS-Cov2 is more likely to spread

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60:58

Nasa probe Osiris Rex lands on asteroid

Unexpected Elements ·

2020/10/25

Science in Action talks to Nasa researcher Hannah Kaplan who is part of the team for the space agency’s sampling mission to the asteroid Bennu. Mission scientists were overjoyed this week when the probe Osiris Rex momentarily touched the asteroid and sucked up some of the sand and grit on its surface. What might we learn when the sample is returned to Earth in three years' time? There is some not-such-good news about a theory about immunity to the pandemic coronavirus, and medical researchers in the

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68:28

Covid -19 mortality

Unexpected Elements ·

2020/10/18

Why is there such a range in the number of deaths from Covid -19 between countries? A study of the data across 21 industrialised countries reveals a wide discrepancy. Preparedness and the point at which countries went into lockdown were key factors says Epidemiologist Jonny Pearson- StuttardRecurring illnesses which show up sometimes months after a Covid -19 infections are being more commonly reported. The Uk’s National Institute for Health research has launched a major initiative to better

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70:46

Do Covid–19 mutations matter?

Unexpected Elements ·

2020/10/11

Data from clinical investigations has suggested that a specific mutation in the SARS-Cov -2 virus has made it more transmissible. This finding is now supported by molecular biology work. Ralph Baric from the University of North Carolina led a team comparing the form of the virus which first emerged from China with the mutated type now prevalent word wide. Bats are known to carry many different types of viruses, horseshow bats specifically carry coronaviruses, apparently without any ill effects to

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70:41

Are children the biggest Covid-19 spreaders?

Unexpected Elements ·

2020/10/04

An analysis of Covid-19 data from South India shows children more than any other group are transmitting the virus both to other children and adults, Epidemiologist Ramanan Laxminarayan tell us the data also shows the situations in which the virus is most likely to spread, public transport is of particular concern.The WHO has launched an initiative to roll out rapid testing, particularly to countries that don’t have access to lab based tests, Catharina Boehme who leads one of the WHO’s partner

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75:35

Why Covid -19 vaccines may not stop transmission

Unexpected Elements ·

2020/09/27

While vaccines against Covid -19 are being developed at unprecedented speed, none of them have been tested to see if they can actually stop transmission of the virus. They are designed to stop those who are vaccinated from developing Covid -19 disease, but not becoming infected. This says Virologist Malik Peiris from Hong Kong University means while vaccinated people themselves may be protected they might also spread the virus. Cells produced in the bone marrow may be responsible for an extreme

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55:48

Malaria resistance breakthrough

Unexpected Elements ·

2020/09/20

Some East Africans have a genetic mutation which gives them resistance to Malaria. Investigations into how it works have produced a surprising finding. As researcher Silvia Kariuki explains it’s all to do with the surface tension of the red blood cells.SARS-CoV- 2 can pass from people in the very early stages of Covid -19, before they show symptoms. New research shows identifying cases at this early stage is crucial to controlling the pandemic. And yet most testing regimes require symptoms to show

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69:34

Covid -19 science versus politics

Unexpected Elements ·

2020/09/13

With the announcement in the UK of investment in rapid testing for people who may not have Covid -19 we ask why is this only happening now? For months on this programme we’ve featured scientific research suggesting such a strategy would be the quickest way to end the pandemic. We speak with Connie Cepko and Brian Rabe who have developed a rapid test and Manu Prakash who is currently rolling it out to countries in the global south.Could a huge motorcycle rally really have been the source of over a

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62:26

Nyiragongo - is Goma under threat?

Unexpected Elements ·

2020/09/06

A new survey of the volcano's activity suggests there may be an eruption in the next 4 to 7 years. It's a particular concern for the populations of Goma and Gisenyi, two cites between the volcano and lake Kivu. As we hear from the director of the Goma Volcano Observatory Katcho Karume, the city of Goma in particular has expanded so much that many people now live right next to fissures in the flank of the volcano through which any eruption would likely occur.Hurricane Laura made landfall in

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65:36

Covid-19 Therapy Controversy

Unexpected Elements ·

2020/08/29

This week Science in Action examines the evidence around the Trump Administration’s emergency use authorisation of convalescent plasma therapy for the treatment of Covid-19. Donald Trump described its US-wide roll-out as ‘historic’ but the majority of scientists and doctors disagree, questioning the scientific basis for the government’s decision. Roland Pease talks to Mayo Clinic’s Michael Joyner, the leader of the convalescent plasma therapy study on which the action was based. The Mayo Clinic

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