to its website this week, the WHO said BA.2, “which differs from BA.1 in some of the mutations, including in the spike protein, is increasing in many countries”.
BA.2 has not yet caused enough concern to be classified as a “variant of concern” – as both Omicron and Delta were – but because it is spreading in so many countries, the WHO has asked officials to monitor it closely. Meanwhile, scientists in Denmark believe more than 45 per cent of all new infections in the country are now related to the new variant. WHO representatives are in Copenhagen as a result, investigating BA.2, which has been nicknamed “stealth Omicron” due to one of its key differences from the original Omicron variant.
Despite this, experts do not appear to believe the new variant will cause another major wave of infections.
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