A new Covid-19 variant called Arcturus is rapidly spreading around the world and health officials have warned it has new symptoms not seen in previous strains.
Arcturus is a subvariant of Omicron which seems to be more transmissible, having fuelled a recent surge of Covid cases in India, the Mirror reports.
In the UK, levels have so far remained low, but health officials are keeping a close eye on it. This latest variant reportedly also comes with a new symptom, not seen before with a coronavirus strain.
