Hong Kong University researchers released information from an early lab study, not peer-reviewed, on Dec. That site is a spot on the virus’s spike protein that’s cut by the enzyme furin to activate the spike and prepare the virus for entering cells. However, given current available data, it is likely that Omicron will outpace Delta where community transmission occurs.”Īs we explained in an earlier story on omicron, scientists were concerned about how easily the variant could be transmitted because s everal of the mutations present in the genome, including some at the virus’s furin cleavage site, have been linked to increased transmissibility.

“Omicron is spreading rapidly in countries with high levels of population immunity and it remains uncertain to what extent the observed rapid growth rate can be attributed to immune evasion, intrinsic increased transmissibility or a combination of both. “It is spreading significantly faster than the Delta variant in countries with documented community transmission, with a doubling time between 1.5–3 days,” the WHO said in a technical brief. 17 that omicron has been identified in 89 countries and that there is “consistent evidence” the variant “has a substantial growth advantage” over delta. The World Health Organization said on Dec. Overall, the seven-day average of new cases in the U.S., due to any variant, has gone up, numbering about 80,000 on Nov. 25, omicron accounted for an estimated 59% of new cases, according to the Centers for Disease Control and Prevention. 1, the country had its first confirmed case, and by the week ending Dec.

Omicron has quickly taken over as the dominant variant in the United States. While the available data on transmission, vaccine effectiveness and severity of disease are still preliminary, here’s what we’ve learned so far.

As many Americans and others around the globe prepare for holiday travel and get-togethers, the omicron variant continues to be a concern.

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