https://apnews.com/833001ef99862bd6ac17935f65c896cf > NEW YORK (AP) — 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.