I was sick all the time when I first started teaching, however I learned a few tricks over the years and now I hardly get sick at all. I have compiled all the tips for staying healthy at the link enclosed.
The flu season is always stressful upon any district. Not only are students affected but teachers and staff can be at risk as well. During this time, many districts will restructure custodial duties to address these concerns during this time. More focus on cleaning such items as door knobs, student desks, water fountains, push-bars, sinks, etc., will be a top priority over sweeping the floors. I would ask the administrator at the school if extra cleaning in these areas are taking place. While I realize a clean floor is necessary, these areas discussed are high contact areas and can spread germs more quickly than dirt on the floor.