USA: Omicron cases account for 73% of infections – Mutation is now predominant


The Omicron variant of the new coronavirus has now become dominant in the US, as it represented the 73.2% of infections recorded the week ending December 18, according to U.S. health officials.

Extremely contagious, Omicron overcame the Delta variant in just a few weeks and now accounts for up to 96.3% of cases in three northwestern US states (Oregon, Washington, Idaho), according to the Centers for Disease Control and Prevention. CDC), the country’s main federal public health service.

Read also US: White House does not plan lockdown despite rapid increase in Omicron cases

In the immediately preceding week, which ended on December 11, Omicron’s cases accounted for only 12.6%. In the week ended December 4, they accounted for 0.7%. The Omicron, which is spreading at an alarming rate, had been detected in 48 US states as of Monday, with its first confirmed case since the genome was sequenced in California on December 1.  

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