![]() ![]() This rings true in the UK where, despite excess deaths surpassing the five-year average, the Covid death rate remains low due to 64% of people over 50 being vaccinated. The WHO's senior epidemiologist Maria Van Kerkhove said: "We do expect further waves of infection around the world, but that doesn't have to translate into further waves of death because our countermeasures (vaccines and treatment) continue to work." It already accounts for roughly one in 25 Covid cases in the UK, the BBC reports. What XBB.1.5 appears to have is an ability to bind to cells while evading the body's immune defences, which makes it spread more easily, according to Professor Wendy Barclay from Imperial College London. Mutations happen bit by bit, so major changes in a new variant are unlikely. The World Health Organisation (WHO) said its seen no indication XBB.1.5 is more severe than other strains, but it is concerned by how transmissible it could be, Reuters reports.
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