Two doses of the BioNTech/Pfizer vaccine provide 70 per cent protection against being admitted to hospital with the Omicron coronavirus variant, according to the first real-world analysis of protection against severe disease with the new strain in South Africa.
根据南非对新冠病毒Omicron变种的一项研究，针对这种新毒株引发需要入院的重症的风险，两剂BioNTech/辉瑞(Pfizer)疫苗可提供70%的保护效力。这是与Omicron有关的针对预防重症有效性的首项真实世界分析。
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