CNNのインスタグラム(cnn) - 12月29日 00時15分

A viral video from Japan 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. One person was singled out as an "infected" person and a fluorescent substance only visible under black light is applied onto their hands, representing germs from a cough or a sneeze. At the end of the video, the participants are cast under black lights illuminating where the "infection" has spread.

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