![]() ![]() 25, the new variant accounted for 58.6% of the COVID-19 cases reported in the U.S.įurthermore, with upwards of 50 mutations in its genome, 30 of which exist in the gene encoding Spike-the SARS-CoV-2 surface protein responsible for binding to human ACE2 receptors to facilitate infection, and the immunogen used in all vaccines currently authorized for general use-significant concerns about increased transmissibility and immune escape have been raised. ![]() case of Omicron occurred in a patient with a history of international travel and symptom onset as early as Nov. (less than a month later), Omicron had spread not only throughout South Africa, where it was first identified using robust genomic surveillance during a sharp rise in COVID-19 cases in Gauteng, the country’s most populous province, but also to 77 additional countries in Australia, Africa, Asia, Europe, North and South America. ![]()
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