Researchers in China say there are two strains of the new coronavirus, one of which is more aggressive – but the World Health Organization says the virus is stable
Source:
https://www.newscientist.com/article/2236544-coronavirus-are-there-two-strains-and-is-one-more-deadly/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home