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A particularly contagious omicron subvariant is on track to become the dominant coronavirus strain in North Carolina. In the Southeast, BA.5 comprises more than half of total COVID-19 cases ...
Omicron (B.1.1.529) is a ... WHO director-general Tedros Adhanom described the global situation as dangerous and precarious and called for a new agreement on the ...
BA.2.86 was first reported by Denmark and Israel. [1] [11] On 18 August 2023, when only six cases had been reported from four countries (Denmark, Israel, the United Kingdom and the United States), the British healthcare authorities noted that its almost simultaneous appearance in several countries still operating detailed genomic surveillance indicated that it likely already was spreading more ...
In June 2022, Pfizer and Moderna developed bivalent vaccines to protect against the SARS-CoV-2 wild-type and the Omicron variant. The bivalent vaccines are well-tolerated and offer immunity to Omicron superior to previous mRNA vaccines. [344] In September 2022, the United States Food and Drug Administration (FDA) authorized the bivalent vaccines.
Omicron appeared in late 2021 and was the last variant to mutate enough to significantly escape immunity from the original strain and vaccines tailored to it. Since then, the variant mutations ...
Around the globe, a new strain of COVID-19 is spreading exponentially. The COVID-19 XEC variant is derived from Omicron strains KS.1.1 and KP.3.3, says Dr. Francesca Torriani, MD, an infectious ...
The conventional wisdom is that Omicron is less likely to cause serious illness, but that might have more to do with better immunity and treatments, not the virus itself.
The Omicron variant features as such for the first time in the overview of WHO's weekly operational update, namely "Supporting Omicron variant detection and COVID-19 response in southern Africa." As of 2 December, Botswana and South Africa have reported 19 and 172 Omicron variant cases, respectively, accounting for 62% of global cases.