Fukuta Mizuki, Mao Zhan Qiu, Morita Kouichi, Moi Meng Ling
Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Nagasaki University, Nagasaki, Japan.
Front Microbiol. 2021 May 5;12:667956. doi: 10.3389/fmicb.2021.667956. eCollection 2021.
The stability and infectivity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in liquid samples are of great concern to virus transmission via common beverages and sewage water. Here, we investigated the stability of SARS-CoV-2 in 32 liquids including common beverages, bodily fluids, and commonly used viral transport media. Our results showed that the infectious virus could be recovered up to 77-days from common beverages including milk and water. Viral RNA could be detected at high levels in all samples up to 28-days, indicating that while viral RNA demonstrates higher stability than infectivity, viral RNA levels do not reflect the infectious capability of SARS-CoV-2. These results indicate that SARS-CoV-2 is highly stable in optimal conditions and a sufficient control measure is needed in reducing the risk of exposure and controlling and preventing future outbreaks.
严重急性呼吸综合征冠状病毒2（SARS-CoV-2）在液体样本中的稳定性和传染性对于通过普通饮料和污水传播病毒至关重要。在此，我们研究了SARS-CoV-2在32种液体中的稳定性，这些液体包括普通饮料、体液和常用的病毒运输介质。我们的结果表明，在包括牛奶和水在内的普通饮料中，传染性病毒最长可在77天内被检测到。在长达28天的所有样本中都能检测到高水平的病毒RNA，这表明虽然病毒RNA的稳定性高于传染性，但病毒RNA水平并不能反映SARS-CoV-2的感染能力。这些结果表明，SARS-CoV-2在最佳条件下高度稳定，需要采取充分的控制措施来降低暴露风险，并控制和预防未来的疫情爆发。
