New versions of coronavirus that spread faster and might evade the immune system are causing fears about vaccine efficacy and a rise in covid-19 deaths. Here’s what you need to know
Source:
https://www.newscientist.com/article/mg24933183-800-how-worried-should-we-be-about-the-new-coronavirus-variants/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home