The Omicron variant has been linked to a substantial rise in coronavirus reinfections in South Africa compared with previous waves, according to the first detailed study into the heavily mutated strain that has sparked global alarm.
对这种引发manbetx app苹果 警报的严重突变毒株的首次详细研究显示，与前几波疫情相比，Omicron变种与南非新冠病毒再感染的大幅上升有关。
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