用于评估 SARS-CoV-2 在流体环境中感染性的细胞和生物组织技术。
Cell and Organism Technologies for Assessment of the SARS-CoV-2 Infectivity in Fluid Environment.
机构信息
Federal Research Center of Fundamental and Translational Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia.
JSC "Vector-Best", Novosibirsk, Russia.
出版信息
Bull Exp Biol Med. 2022 Aug;173(4):519-522. doi: 10.1007/s10517-022-05574-4. Epub 2022 Sep 5.
Abstract
Under conditions of COVID-19 pandemic, considerable amounts of SARS-CoV-2 contained in household, municipal, and medical wastewaters inevitably reach natural water bodies. Possible preservation of virus infectivity in liquid environment is of a paramount epidemiological importance. Experiments demonstrated that SARS-CoV-2 is resistant to multiple freezing/thawing cycles and retains its infectivity in tap and river water for up to 2 days at 20°C and 7 days at 4°C. In natural milk, its viability is preserved in a refrigerator for 6 days. The exposure of aquarium fish to the virus-containing water fails to cause any infection.
摘要
在 COVID-19 大流行期间，大量含有 SARS-CoV-2 的家庭、市政和医疗废水中不可避免地会进入自然水体。病毒在液体环境中保持感染力具有至关重要的流行病学意义。实验表明，SARS-CoV-2 能够抵抗多次冻融循环，并且在 20°C 的自来水中和河水中可保持感染性长达 2 天，在 4°C 的条件下可保持 7 天。在自然牛奶中，其在冰箱中可保存 6 天。将含有病毒的水暴露于观赏鱼中不会引起任何感染。
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