On a very hot day when the temperature exceeded 36 degrees Celsius, I gave two lectures (health policy advocacy) at the Keio University School of Public Health at the Shinanomachi campus in Tokyo for two consecutive sessions.

As a countermeasure against Covid-19, the air conditioner was turned on and the windows and doors were opened to prevent the class from becoming a closed space. There was a sense of openness, and it was surprisingly good.
However, it is still hot when I put on a mask, and the frequency of drinking water decreases, so I talked for almost 3 hours straight and I was a bit tired.

Still, it's still good to talk in person.
Many of the students (although they are mostly professionals such as doctors and nurses) were meeting each other for the first time this season, and it was impressive to see them happily greeting each other.

I was reminded that it is important to prevent the spread of infection by practicing good hand washing (hand hygiene), which is the basis of infection control, and to continue with normal activities as much as possible by performing basic actions such as wearing a mask and keeping social distance.
[This article is translated by DeepL]