Siouxsie Wiles & Toby Morris: How worried should we be about the new Covid-19 mutations?
At least three new, more contagious Covid variants have been spreading around the world. Here’s how they emerge and why. Let’s start with the basics. The genetic material of the SARS-CoV-2 virus responsible for Covid-19 is a strand of RNA made up of almost 30,000 nucleotides. Those nucleotides – adenine, cytosine, guanine, and uracil – … Read more