as to cases in the USA, from the AP:
“Just a day after the first known U.S. case was found in California, tests showed the omicron variant had infected at least five people in the New York City metropolitan area, plus a man from Minnesota who had attended an anime convention in Manhattan in late November.
A Colorado woman who had recently traveled to southern Africa, a Hawaii resident with no recent travel history, and another California resident who traveled to South Africa last month also were infected by the variant...
“The infected New Yorkers included a 67-year-old woman on Long Island who had recently traveled to South Africa, residents of Brooklyn and Queens and another case possibly linked to travel. At least one person had received a dose of a COVID-19 vaccine ...”
https://apnews.com/article/omicron-variant-anime-convention-new-york-minnesota-a343c1d0bcc6e59f8696491443f704db
