Just a personal observation: when I first moved into a giant-open plan office in 2015 in a big German company, I got significantly more sick. It was horror. Also, bathrooms were unusually crowded, probably helping spread diseases. Since then, it seems my body got a bit used to it and I am sick less often. But is is still more than the times before. What might also increase days that people are not there: at least in…
This fits with my experience. My department has some cubicle farms and some shared but much more private office suites. The cube farm people are always getting sick. Somebody comes in with a cough and promptly spreads it. It then can take weeks before there's a week without somebody sick. Getting people to stay home when they are sick has been harder to implement than you'd think. I've tried with my work team. A numb…
It may well be that they don't want to cut their July vacation short by a day because they caught a cold in January. And to compound the issue, it was probably a cold they caught at work, because the company leave policy reinforces the behavior. People who stay home when sick are punished with shorter vacations.