Brazil and Japan joined a rapidly expanding circle of countries to report cases of the omicron variant on Tuesday, while new findings suggest the mutant coronavirus has been in Europe for almost a year. last week when South Africa sounded the alarm.
The Dutch medical institute RIVM revealed that patient samples from November 19 and 23 were found to contain this variant. On 24 November, the South African authorities reported the existence of the highly mutated virus to the World Health Organization.
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