Covid vaccine boosters; why we don't have a tail; cassowary domestication; Royal Society Science book prize shortlist

Booster vaccines are now being offered to people in England most at risk of Covid, who had their second jab at least 6 months ago. Most people are getting an mRNA vaccine as a booster, mainly the Pfizer one. Dr Andrew Ustianowski, national clinical lead for the UK COVID Vaccine Research Programme, and infectious diseases consultant in Manchester, explains why people are not being offered new vaccines, specifically tweaked to prevent the current highly transmissible delta variant. And he talks about a trial with a new vaccine that works against more than just the spike protein. Why don’t we have a tail? We share that absence with our primate cousins, the great apes. What made the difference genetically speaking has eluded scientists, until now. Professor Jef Boeke of NYU Langone Health tells Gaia Vince why it was a change in just one gene that caused us to lose our tail.New research just published in PNAS pushes back the origins of farming by thousands of years. Professor Kristina Douglass of Penn State University and team studied 18 000 year old eggshells of cassowaries, found in human shelters in New Guinea. She explains how the finds suggest that these Pleistocene people had domesticated these large flight less birds. And six authors this week learned that their books have made the shortlist of the Royal Society Insight Investment Science Book Prize for 2021. Chair of the judges, Luke O’Neill, Professor of Biochemistry at Trinity College Dublin, tells Gaia how the panel made their choices from the 350 books entered.

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