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He said he'd introduce them, now Boris Johnson has stepped back from mandating vaccine passports across England for venues like nightclubs. But what's provoked this viral volte-face? Also, saliva tests for Covid-19, few fatal coronavirus cases among the unvaccinated, what's the role of hand sanitisers, and are Covid booster jabs the way forward? Dr…
 
Fluoride is the stuff in toothpaste that helps strengthen teeth. But if there's too much fluoride in the water it softens bones, and children become susceptible to bone deformities. It's very difficult and expensive to remove dissolved fluoride ions from water. But, inspired by nature, scientists have used polymers to produce a membrane that can fi…
 
Twitter has been the subject of another study, looking at how people's tendency to post tweets in moral outrage is affected by other people on the site. Increasingly in recent years, celebrities and other well-known individuals have found themselves being "cancelled". This usually happens when they do or say something that other users disagree with…
 
Scientists and doctors are always after good quality human cells for research and therapeutic purposes, but these can be hard to come by in sufficient quantities. Now, synthetic biology company bit.bio has opened up new headquarters in Cambridge to start supplying multiple different cell types by reprogramming stem cells. Eva Higginbotham heard mor…
 
Many of us love putting out bird seed and watching birds feast away, and feel we're doing a good deed too, but a new paper out of Manchester Metropolitan University suggests we may actually be doing more harm than good. Eva Higginbotham spoke to BBC science correspondent Victoria Gill, who spoke with lead author Alex Lees previously... Like this po…
 
Most schools across the UK are open and children are heading back to their classrooms. But to what extent will this affect the Covid case rates across the country and what can we do to avoid disrupting a third academic year? In Scotland, children returned to school sooner than their English counterparts: what can we learn from their experience? Chr…
 
Quite soon after the pandemic first struck a significant number of people began to complain of persistent symptoms in the aftermath of being infected with the new coronavirus. These manifestations have been dubbed "long covid". What's less clear is the extent to which this is happening not just to adults but also to children, and particularly teena…
 
We often look for water on remote planets and moons because, as far as we know, it's a requirement for life. Now a team of researchers using the Hubble Space Telescope to scrutinise Jupiter's largest moon, Ganymede, think they've found water in its atmosphere. Sally Le Page spoke with team member Kurt Retherford. Like this podcast? Please help us b…
 
Is Delta more deadly, or just transmitting more rapidly? And are the vaccines we're using likely to defend against future coronavirus variants? Also, does it matter that levels of antibody dimish post-vaccination, or will immune memory make up for the shortfall? Meanwhile, are vaccinated people who still catch Delta equally infectious? Does Delta i…
 
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