The Omicron variant of COVID-19 accounted for almost three-quarters of new infections in the US last week, authorities say.
Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the United States accounting for 73 per cent of new infections last week, health officials said.Omicron is thought to account for 90 per cent of new COVID cases in New York and other parts of the US
Early studies suggest the vaccinated will need a booster shot for the best chance at preventing Omicron infectionThe Centers for Disease Control and Prevention numbers showed nearly a six-fold increase in Omicron's share of infections in only one week.It's responsible for an estimated 90 per cent of new infections in the New York area and several other parts of the country.As recently as the end of November, more than 99.5 per cent of coronaviruses were Delta, according to CDC data.
Scientists in Africa first sounded the alarm about Omicron less than a month ago and on November 26 the World Health Organization designated it as a "variant of concern".
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