The strong social distancing policies introduced by China seem to have been successful in stopping the spread of Covid 19. Without any effective drug treatments, reducing our number of contacts is the most effective way to prevent viral transmission.
We also look at the similarities been policies in Russia and the US on how best to deal with the virus. In both cases there are contradictions and disagreements between medical professionals and politicians.
And a warning from Polio, how vaccines may create problems when immunisation campaigns do not reach everyone.
And If you've ever felt the urge to shop till you drop, then you may already know about some of the clever ways retailers convince us to consume. From flash sales to so-called unbelievable offers, there are a whole range of techniques aimed at encouraging us to flash the cash. Listener Mo works in marketing, so knows more than most about the tricks of the trade - but he wants CrowdScience to investigate how neuroscience is being used to measure our behaviour and predict what we’ll buy.
Marnie Chesterton finds out how brain scans are being used to discover which specific aspect of an advertisement a person is responding to, and then she hears how this information is being used by companies who want to sell us more stuff. But there's also evidence to suggest we have less control over these decisions than we think, and that computers are getting closer to detecting our intention before we're even aware of it ourselves. And this could have huge implications for the way we shop.
(Image: Getty Images)
Covid -19, are you carrying the virus?
In Italy the entire population of a small town was tested for Covid 19. Of those infected, one in three people with no symptoms had the virus. And from China researchers found many people carried the virus – even before authorities there began tracking its spread. The findings suggest vulnerable people may contract the virus from those without symptoms.
And we’ve news of a breakthrough - new tests looking at Covid 19 antibodies, These should help provide a picture of developing immunity to the virus.
However as growing numbers of people fall ill there are concerns over a potential shortage of hospital ventilators globally, These are needed to treat the most severe cases. However a crowdsourcing project has been set up to try and kick start the manufacturing of a variety of different types of ventilator that could be built around the world. If you have knowledge of ventilators or their use and would like to get involved more information is available here. http://bit.ly/frontiertech4COVIDaction
Many of us are fascinated by our ancestry: knowing where our families came from can give us a sense of identity and roots. Tracing your family tree is a time-honoured tradition, but several companies now sell DNA tests that offer you insights into your heritage: so you might find out you’re 70% Nigerian, 39% Italian, or 11% South Asian, for example.
There’s no doubt that genes contain clues about your family history, but how reliable are these commercial tests? That’s what CrowdScience listener Karen wondered after an update of her test results showed her going from 39% Scandinavian to 2% Norwegian. How confident can she be in her results now? And what does it actually mean to be 2% Norwegian, in terms of your family tree?
Presenter Alex Lathbridge delves into his own African and European ancestry, talks to some of the companies offering these tests, and unpicks the complex relationship between genetic science and family trees. We meet a woman who found her long-lost uncle with a combination of a DNA test and old-fashioned archive research; and look to the Americas to ask whether genetic testing can restore ancestral ties erased by the inhumanity of the transatlantic slave trade.
(Image: AFP/Getty Images)
Covid -19 how infectious is it really?
Covid- 19 cases seem to be multiplying daily and there is now a growing body of scientific evidence both on its spread and the effectiveness of measures to try and control it. We look at what’s working, what’s not and why.
And we look to the potential for coronavirus drug treatments, why despite the hype there really isn’t anything round the corner.
Australia’s recent fire season was intense; a new study looks back over 500 years of the weather pattern partly responsible, the Indian Ocean Dipole. The findings show the most extreme years occurred recently – under the influence of man-made climate change.
And we look at life deep below the sea floor, microbes which multiply slowly over centuries and eat their neighbours.
Since the outbreak of a new strain of coronavirus late last year, health workers and governments have been rushing to limit transmission by deploying containment tactics and anti-contamination campaigns. But, as the virus spreads around the world, what are scientists doing to help our bodies fight off or resist this new infectious disease?
Viruses that cause human disease can be notoriously tricky to tackle. They don’t respond to antibiotics, can spread rapidly between human hosts, and even evolve improved ways of working as they multiply. Presenter Marnie Chesterton heads to the University of Oxford’s Nuffield Department of Medicine to meet the researchers who are urgently searching for solutions. Professor Tao Dong is Director of Chinese Academy of Medical Sciences Oxford Institute, collaborating with colleagues on the ground in China to see how Chinese patients’ immune systems are responding to the virus, which could inform vaccine design. Professor Sarah Gilbert leads the Jenner Institute’s influenza vaccine and emerging pathogens programme. She’s been developing a vaccine against another strain of coronavirus that caused the Middle East Respiratory Syndrome (MERS) outbreak, and is using the same technology to generate a new vaccine against the 2019 coronavirus. And, whilst that’s being developed, there is a possibility that some existing antiviral drugs may even help infected patients – Professor Peter Horby is working with colleagues in China on clinical trials to see what might work. CrowdScience goes into the laboratories using cutting edge science to combat coronavirus.
(Image: Coronavirus test. Credit: iStock / Getty Images Plus)
Australia’s fires - fuelled by climate change
Attributing Australia's bush fires, a major study says man-made climate change was a big driver – making the fires at least 30% worse than they would have been if natural processes were the only factors.
We look at preparations for coronavirus in Africa. Although cases there are currently lower than in much of the rest of the world a major training initiative is taking place to spread awareness amongst medics across the continent.
We ask why Horseshoe bats in particular carry coronaviruses, and find a novel idea for distributing vaccines in places without refrigeration.
And why are we obsessed with crime? Kay from Hamburg, Germany asks as every Sunday evening Germans pile into their local pubs to watch Tatort, a hugely successful crime drama which has been running for 50 years.
Presenter Marnie Chesterton starts with the science and speaks with psychologists to get to the bottom of where this obsession might come from. Have we evolved to have an innate obsession with danger or are we addicted to feeling fear?
Or perhaps the dramatisation of crime fuels our obsession. Producer Caroline Steel visits the film set of BBC crime drama, Line of Duty. Producer Jed Mercurio explains what draws us to crime narratives and the techniques he uses to keep his audience captivated.
But does the way we chose to represent crime in media match up with reality? And what is the impact of this on society and policy?
(Image: Australian bushfires. Credit: Getty images/AFP)
Tracking coronavirus spread
The appearance of Covid -19 in Italy and Iran surprised many this week. As the virus continues to spread we look at ways to contain it.
Australia’s fires have burnt around 20 percent of the countries woodlands, what are the implications for the recovery of those ecosystems?
And what is the link between the world’s super rich and deforestation? Unsurprisingly it’s money.
And we hear about the unexpected cooling effects of hydroelectric dams.
Weather: wet, dry, cold, hot, sunny, windy or downright weird - there’s nothing quite like it as a conversation starter, from Austin to Jakarta. And judging from the large volume of emails about all things meteorological in the CrowdScience inbox, there’s plenty to talk about.
What’s the weirdest weather on Earth, and how big a chance is there of it happening? Why does it always seem to rain on the days when we’re not working? And – conversely – is there any way we could make it rain when and where we need it to? Presenter Anand Jagatia finds out the answers to these questions and more by bringing together a panel of experts under the CrowdScience umbrella: Prof Liz Bentley, Royal Meteorological Society; Dr Anthony Rea, World Meteorological Organization, and Dr Rebecca Buccholz, National Centre for Atmospheric Research.
(Image: Tourists wearing masks tour outside the Coliseum in Rome. Credit: Getty Images)