Air and surface measurements of SARS-CoV-2 inside a bus during normal operation.
Air and surface measurements of SARS-CoV-2 inside a bus during normal operation.
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DOI：
10.1371/journal.pone.0235943
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发表时间：
2020
期刊：
影响因子：
3.7
通讯作者：
Ucciferri C
中科院分区：
文献类型：
--
作者：
Di Carlo P;Chiacchiaretta P;Sinjari B;Aruffo E;Stuppia L;De Laurenzi V;Di Tomo P;Pelusi L;Potenza F;Veronese A;Vecchiet J;Falasca K;Ucciferri C
SARS-CoV-2的传播途径是气溶胶、飞沫和接触感染物。在室内，病毒在人群中的传播更容易，但在空气中或表面上直接检测到SARS-CoV-2非常稀少，特别是在公共交通方面，同时了解如何使用它们以及使用它们是否安全也很重要。为了回答这些问题，我们分析了正常运行的城市公交车内的空气和乘客最常接触的表面，以了解病毒的可能传播和防护措施的有效性。这些测量是在封锁的最后一周和逐渐取消所有旅行限制的第一周进行的。用RT-PCR方法检测空气和地面样品中的SARS-CoV-2病毒。经过两周的测量和超过1100名乘客乘坐公共汽车，病毒从未在表面和空气中检测到，这表明公共交通采取的预防措施有效减少了COVID-19的传播。
Transmission pathways of SARS-CoV-2 are aerosol, droplet and touching infected material. The diffusion of the virus contagion among people is easier in indoor location, but direct detection of SARS-CoV-2 in air or on surfaces is quite sparse, especially regarding public transport, while it would be important to know how and if it is safe to use them. To answer these questions we analysed the air and the surfaces most usually touched by passengers inside a city bus during normal operation, in order to understand the possible spreading of the virus and the effectiveness of the protective measures. The measurements were carried out across the last week of the lockdown and the first week when, gradually, all the travel restrictions were removed. The air and surface samples were analysed with the RT-PCR for the detection of SARS-CoV-2 virus. After two weeks of measurements and more than 1100 passenger travelling on the bus the virus was never detected both on surfaces and on air, suggesting that the precautions adopted on public transportation are effective in reducing the COVID-19 spreading.
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