The new Covid Arcturus variant could be more transmissible than previous strains due to one "advantage", authorities claim.
The subvariant was first detected in India, prompting the return of mask laws within the county. Since then, it has spread across the globe, with five Brits having died from the disease, and five Scottish cases confirmed as of Tuesday.
Officially known as Omicron XBB.1.16, Arcturus is also on the rise in Australia, as the World Health Organisation (WHO) continues to monitor global cases.
