The Omicron variant of the coronavirus has been detected in at least 57 countries, according to the head of the World Health Organization (WHO), Tedros Adhanom Ghebreyesus, calling on governments to take action sooner rather than later.In South Africa, the number of Omicron cases is increasing quickly. “However, Omicron was detected when transmission of Delta was very low, so it had little competition,” Tedros said on Wednesday.He was dismissive of initial reports suggesting the Omicron strain…

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