I hate being sick

It has been said that college students are sick all year round, with so many of them in such a small place, living in the same room, sharing drinks, and sometimes saliva, how can they avoid it? For some reason I am the poster child of the sick college student, I just got over my cold only to find out two weeks later I now have strep throat. :( When will this ever end? It seems I buy dayquil now more water and am losing friends cause they always complain about me getting them sick. Ok, so maybe those are a little exagerated but still.