NEW YORK — Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the U.S., accounting for 73% of new infections last week, federal health officials said Monday. The Centers for Disease Control and Prevention numbers showed nearly a six-fold increase in omicron’s share of infections in only one week. In much of the country, omicron’s prevalence is even higher. It’s responsible for an estimated 90% of new infections in the New York area, the Southeast, the industrial Midwest and the Pacific Northwest. Since the end of June, the delta variant has been the…

Read More