Southern Africa-Linked COVID-19 Variant With ‘Horrific’ Number of Spike Mutations Triggers Concerns

According to the World Health Organisation, all viruses, including SARS-CoV-2, that causes COVID-19, change, but only some deviations affect their properties, such as the speed with which it spreads, the associated severity of disease, and the effectiveness of vaccines. The Delta variant, detected a year ago, is now dominant across the globe.