Take some freakin Airborne will ya!

Why is everyone in our office sick? Is this some scam I havn't quite figured out yet. Are the changing seasons really a dark cloud of viral germs that rain from the sky and infect everyone. I havn't gotten "sick" yet, I just called out sick for you know personal reasons (I needed to get some work around my house done). Or do I just have the immune system of a god. Can anyone explain the "sickness" to me.