World Health Organization has listed Omicron as a ‘variant of concern’ and said it could take several weeks to know if there are significant changes in transmissibility, severity or implications for Covid vaccines, tests, and treatments. Here's a list of countries that have reported cases of the new Covid-19 variant: 1.
Australia The Australian health department has detected the Covid Omicron strain in two passengers in Sydney. Both passengers came from southern Africa and arrived in Australia on a Qatar Airways flight via Doha.
Another 12 passengers from southern Africa on the same flight did not test positive for Covid but had been placed in quarantine. 2.