Ebola drug offers hope for Covid-19

Remdesivir a drug eventually rejected as a treatment for Ebola seems to have aided recovery in a trial with more than a thousand Covid -19 patients. Researchers are cautious but hopeful; a leading health official in the US has made comparisons with the impact of game changing drugs used to treat HIV. In contrast an organisation researching the mechanisms by which bat coronaviruses infect humans has had its funding cut following criticism from President Trump. A scheme to help manufacture ventilators and protective equipment worldwide has seen some success with a simple ventilator they developed, now in use in hospitals. And we look at climate change –with this year set for extreme weather What’s the importance of zero, and how was it discovered? How do scientists calculate Pi’s infinite digits? Why do so many people find maths difficult – and what’s the most difficult thing in maths? CrowdScience takes on a whole bunch of questions sent in by high school students in Spain. Like many children all over the world, their school is currently closed due to the coronavirus lockdown, but lessons continue at home. So how are their studies going, and can CrowdScience help out? We attempt to answer some of their trickiest maths questions with the help of mathematics whizz Katie Steckles, Pi aficionado Matt Parker, and mathematical biologist Kit Yates. Image Credit: Getty Images