Allergies of many kinds lower dramatically the body's first defenses (they make the respiratory tract much easier to penetrate by various bugs). Also most colds

Allergies of many kinds lower dramatically the body's first defenses (they make the respiratory tract much easier to penetrate by various bugs). Also most colds and flus, although technically airborne in practice are almost always transmitted by touch. Wash your hands more often and always before eating, and clean the keyboard once in a while. You may want to look into flu shots. I've heard a lot of opinions pro and against, but if it's a real problem for you then they're probably worth it.