Omicron, a new Covid-19 variant with high number of mutations, sparks travel bans and worries scientists
By David McKenzie, Ghazi Balkiz, Ivana Kottasová and Laura Smith-Spark, CNN The discovery of a new and potentially more transmissible coronavirus variant by South African health authorities has sparked a forceful reaction across the world, with a number of countries banning travelers from several southern African countries. The World Health Organization announced Friday it has
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