Which 23 countries have confirmed cases of Omicron coronavirus variant?

WHO has said at least 23 countries from five of six WHO regions have now reported cases of Omicron. "We expect that number to grow," it added. The 23 countries are Australia, Austria, Belgium, Botswana, Brazil, Canada, Czech Republic, Denmark, France, Germany, Hong Kong, Israel, Italy, Japan, Netherlands, Nigeria, Norway, Portugal, Saudi Arabia, South Africa, Spain, Sweden and UK.