分享新知，自由传播
日本研究人员在实验室测试中发现，与早期版本的新冠状病毒相比，Omicron变种可以在塑料表面和人类皮肤上存活更长时间。
研究人员说，Omicron变种的高度“环境稳定性”，即保持传染性的能力，可能有助于使其取代Delta变种，从而成为主要的变种并迅速传播。
在塑料表面上，原始毒株、Alpha、Beta、Gamma和Delta变种的平均生存时间分别为56小时、191.3小时、156.6小时、59.3小时和114.0小时。相比之下，Omicron的生存时间可以长达193.5小时。在尸体皮肤样本上，原始病毒的平均存活时间为8.6小时，Alpha变种为19.6小时，Beta 为19.1小时，Gamma为11.0小时，Delta为16.8小时，Omicron变种则为21.1小时。
不过，研究还发现，在皮肤上，所有的变种在暴露于含酒精的洗手液15秒后均可被完全灭活。因此，研究人员认为，“强烈推荐使用消毒剂来控制感染（手部卫生），诚如世界卫生组织所建议的那样。”
来源：REUTERS；编译：POLARZONE
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