The Omicron subvariant XBB.1.5has been reported in dozens of countries and the WHO has called it the most transmissible yet.A new Omicron variant XBB.1.5 is causing concerns among scientists as it is spreading like a wildfire across dozens of countries, with the UN health agency calling it the most transmissible subvariant detected yet.
#people #years #united-states #combination #world-health-organization #transmission #senior-director #immune-systems
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