Mexico has confirmed its first case of the "Omicron" coronavirus strain. It was detected on Saturday in a person who arrived in the country from South Africa in November.
The World Health Organisation has called the Omicron variant, which emerged in South Africa, a variant of concern due to its high number of mutations (32) on the spike protein. It is feared that Omicron may be more transmissible than previous variants, but according to South African medical authorities, cases of the strain have been mild.
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