Attention to prevention of COVID-19 -"5 situations" that increase the risk of infection-

November 22, 2020

To: Students, Faculty Members, and Employees


Attention to prevention of COVID-19
“5 situations” that increase the risk of infection

Recently, the infection status of COVID-19 in Japan has become a cautionary situation, with the number of newly infected people per day reaching a record high.

In such a situation, the government and experts have made recommendations, and the following are summarized as “5 situations” that increase the risk of infection.

Students, faculty members, and employees are paying attention to “Change in the Mode of Operations of Our University (From October 1, 2020 onward)” that has been relaxed after the state of emergency was lifted, and “Handling Guidelines for the Prevention of the Spread of COVID-19 (October 16, 2020),” and are trying to balance infection spread prevention and education and research activities. It is important to maintain and continue the situation of our university where this balance is achieved.

Please continue to understand this situation and basic infection prevention measures, and also be aware and act so as 'not to infect yourself' and 'not to infect other people'.

INAGAKI Toshiyuki
Vice President for General Affairs
COVID-19 Response Team

“5 situations” that increase the risk of infection


【Situation1】Social gatherings with drinking alcohol

・Drinking alcohol improves mood and at the same time decreases attention. In addition, hearing is dulled and it leads to speaking in a louder voice.

・The risk of infection increases when large numbers of people are in a small space for a long time.

・In addition, sharing glasses and chopsticks increases the risk of infection.

【Situation2】Long feasts in large groups

・Long-term meals, dinner receptions, drinking alcohol at night increase the risk of infection compared to a short meal.

・The risk of infection is increased by eating and drinking in a large group of people, for example, 5 or more people, because in groups you have to talk louder and droplets of saliva spread more often.

【Situation3】Conversation without a mask

・Talking at close range without a mask increases the risk of airborne or micro-droplet infection.

・Cases of infection without masks were observed during gatherings in karaoke machines.

・Please be careful when traveling by car or bus.


【Situation4】Living together in a small limited space

・Living together in a small limited space increases the risk of infection because the enclosed space is shared by several people for a long time.

・There have been reports of suspected infections in common areas such as dormitory bedrooms and bathrooms.

【Situation5】Switching locations

・When you move to another location, such as when you take a break in a workplace, the risk of infection may increase due to the feeling of relaxation and changes of the environment.

・Suspicious cases of infection were identified in breaking rooms, smoking areas and changing rooms.