The “Arcturus” subvariant is thought to be the most contagious strain since the start of the pandemic 🦠 But scientists believe that immunity from previous infections, as well as improving weather, have prevented it from taking hold
Unlike the UK, India did not experience large numbers of Kraken infections. Professor Francois Balloux, director of UCL Genetics Institute, said this could go some way to explain the subvariant’s slow progress.
“XBB.1.16 is closely related to the XBB.1.5 variant that caused the previous wavelet in parts of the world,” he told“As such, it is expected to spread best in countries that saw little XBB.1.5, such as India and China. Conversely, its impact should be minor in countries that had a sizeable number of XBB.1.5 cases earlier this year.”Professor Lawrence Young, a virologist at Warwick University, said: “A combination of vaccination and prior infection with other Omicron variants such as XXB.1.
“The elderly and clinical vulnerable need to remain cautious and come forward for their booster jabs.”
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