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一次聚餐病毒会传多广？NHK模拟实验惊人曝光(视频)
文章来源: 自由时报 于 2020-05-14 10:26:19 - 新闻取自各大新闻媒体，新闻内容并不代表本网立场！
Black Light Experiment Shows How Quickly COVID-19 Can Spread | NowThis
日本《NHK》近日公布一段模拟正常社交场合下病毒扩散的实验影片。（撷取自NHK）
新冠病毒蔓延全球，疫情较严重国家陆续终止社交活动，日本《NHK》近日公布一段模拟正常社交场合下病毒扩散的实验影片，有专家认为，这实验证明了在不洗手、不配戴口罩的情况下，病原体将以相当惊人的效率从带原者扩散至他人。
日本《NHK》与公共卫生专家合作模拟了一次在观光邮轮上10人室内聚餐的社交活动，其中1人被设定为感染者，在一次咳嗽中以手摀嘴，接着再与其他9人进行正常自助式聚餐，为了解病原体的扩散程度，研究人员在感染者手上涂抹代表病毒的萤光涂料，并在实验结束后以「黑光灯」观测其扩散范围。
影片显示，在这次愉快的自助式聚餐后，本来只被喷在感染者手上的萤光涂剂最终出现在所有参与者的手中，其中还有3人脸上也沾有涂剂，此外，盛放食物的盘子、盖子、夹子，甚至盘中的食物也都佈满感染者的「唾液」。
《CNN》引述香港大学病理学教授尼可斯（John Nicholls）的说法称，实验证明在不洗手的情况下，病毒传播的速度非常惊人，尼可斯说，这个影片让手部卫生在抗疫行为中的重要性不言可喻。
www.wenxuecity.com
这个试验，只能反应出部分传播现象，不能完全反应病毒的所有真实的传播情况。
A video went viral.
The Japanese video aims to show how easily germs and viruses can spread in restaurants when just one person is infected.
The experiment simulates the atmosphere at a buffet restaurant or on a cruise ship. It was conducted by the public broadcasting organization NHK in conjunction with health experts. The video shows 10 people coming into the restaurant, with one singled out as the "infected" person. Each participant goes about the buffet as they normally would, not considering a potential contamination.
At the end of the video, the participants are cast under black lights illuminating where the "infection" has spread. The substance, used to signify the germs, can be seen on food, serving utensils and platters, and even on the faces of some of the participants.
While these kinds of experiments are not new, John Nicholls, a clinical professor in pathology at Hong Kong University, said they demonstrate how quickly a virus can spread, especially when hand washing is not performed.
"What the video demonstrated, is that it will spread to surfaces and to people very efficiently," Nicholls told CNN, "and I think it really highlights the need of what people have been saying about hand hygiene to stop the spread of disease."
However, Nicholls said that the situation is "artificial" because so much emphasis is placed on the touching alone.
Kentaro Iwata, an infectious disease specialist at Kobe University, agreed. "The experiment just described the possibility of the spread by contact, and that is not proof of what happened, so the distinction has to be clearly made between what could happen and what did happen," Iwata told CNN.
But both experts said the experiment is a good way to show the importance of hand washing. For the sake of science, Nicholls said it would be even more effective to see the experiment done after the "infected" person washes their hands for five and then ten seconds.
"So the general public gets some concept of the mechanism of how much the use of hand washing can actually reduce the transmission of potentially infectious material," Nicholls said. CNN's Bex Wright contributed to this report.
文章来源: 自由时报 于 2020-05-14 10:26:19 - 新闻取自各大新闻媒体，新闻内容并不代表本网立场！
Black Light Experiment Shows How Quickly COVID-19 Can Spread | NowThis
日本《NHK》近日公布一段模拟正常社交场合下病毒扩散的实验影片。（撷取自NHK）
新冠病毒蔓延全球，疫情较严重国家陆续终止社交活动，日本《NHK》近日公布一段模拟正常社交场合下病毒扩散的实验影片，有专家认为，这实验证明了在不洗手、不配戴口罩的情况下，病原体将以相当惊人的效率从带原者扩散至他人。
日本《NHK》与公共卫生专家合作模拟了一次在观光邮轮上10人室内聚餐的社交活动，其中1人被设定为感染者，在一次咳嗽中以手摀嘴，接着再与其他9人进行正常自助式聚餐，为了解病原体的扩散程度，研究人员在感染者手上涂抹代表病毒的萤光涂料，并在实验结束后以「黑光灯」观测其扩散范围。
影片显示，在这次愉快的自助式聚餐后，本来只被喷在感染者手上的萤光涂剂最终出现在所有参与者的手中，其中还有3人脸上也沾有涂剂，此外，盛放食物的盘子、盖子、夹子，甚至盘中的食物也都佈满感染者的「唾液」。
《CNN》引述香港大学病理学教授尼可斯（John Nicholls）的说法称，实验证明在不洗手的情况下，病毒传播的速度非常惊人，尼可斯说，这个影片让手部卫生在抗疫行为中的重要性不言可喻。
一次聚餐病毒会传多广？NHK模拟实验惊人曝光 | 文学城
日本《NHK》近日公布一段模拟正常社交场合下病毒扩散的实验影片。（撷取自NHK）新冠病毒蔓延全球，疫情较严重国家陆续终止社交活动，日本《NHK》近日公布一段模拟正常社交场合下病毒扩散的实验影片，有专家认为，这实验证明了在不洗手、不配戴口罩的情况下，病原体将以相当惊人的效率从带原者扩散至他人。...
www.wenxuecity.com
这个试验，只能反应出部分传播现象，不能完全反应病毒的所有真实的传播情况。
A video went viral.
The Japanese video aims to show how easily germs and viruses can spread in restaurants when just one person is infected.
The experiment simulates the atmosphere at a buffet restaurant or on a cruise ship. It was conducted by the public broadcasting organization NHK in conjunction with health experts. The video shows 10 people coming into the restaurant, with one singled out as the "infected" person. Each participant goes about the buffet as they normally would, not considering a potential contamination.
At the end of the video, the participants are cast under black lights illuminating where the "infection" has spread. The substance, used to signify the germs, can be seen on food, serving utensils and platters, and even on the faces of some of the participants.
While these kinds of experiments are not new, John Nicholls, a clinical professor in pathology at Hong Kong University, said they demonstrate how quickly a virus can spread, especially when hand washing is not performed.
"What the video demonstrated, is that it will spread to surfaces and to people very efficiently," Nicholls told CNN, "and I think it really highlights the need of what people have been saying about hand hygiene to stop the spread of disease."
However, Nicholls said that the situation is "artificial" because so much emphasis is placed on the touching alone.
Kentaro Iwata, an infectious disease specialist at Kobe University, agreed. "The experiment just described the possibility of the spread by contact, and that is not proof of what happened, so the distinction has to be clearly made between what could happen and what did happen," Iwata told CNN.
But both experts said the experiment is a good way to show the importance of hand washing. For the sake of science, Nicholls said it would be even more effective to see the experiment done after the "infected" person washes their hands for five and then ten seconds.
"So the general public gets some concept of the mechanism of how much the use of hand washing can actually reduce the transmission of potentially infectious material," Nicholls said. CNN's Bex Wright contributed to this report.
