@raiden55 That's a thing I never understood with Japan, getting colds in a manga seems to happen everytime you do a bit of effort, and it's immediately life-threatening xD It's also as hard to get rid off as a cancer for some reason :')
@Ghizghuth - when I was going to school there, I did see students who were sniffling in class with the first symptoms, then they'd be out with a serious cold. I think it might be a cultural thing to try and tough it out to the point of collapse, whereas Americans tend to be almost hypochondrically pre-emptive on nailing down the symptoms.