Even more than a day is terrible. If I have a cold or the flu, the last thing I want to do is to go to the doctor. I'd rather just rest up, it goes away in 3-5 days and I can be back at work.

The need for a doctor's notes means one of:

* I explain to my employer, probably don't get paid for those days, and might face disciplinary action or eventually get fired

* I go to the doctor, making my recovery less likely, increasing my stress levels which are already high due to my body fighting an infection, and risk infecting others or worse, catch something else myself for being made to cohabit space with other sick individuals

* I work even though I'm sick. If I do that from the office, I risk contaminating colleagues - and other people I interact with

There's no winning.