bill: what do doctors do to protect themselves, rick and stay healthy. >> reporter: all the staff here get the flu vaccination. doctors, nurses attendants. they get the vaccine and wear masks in many cases dealing with flue patients with symptoms and patients are given masks. the best advice for everyone is wash your hand as frequently as possible, if you have flu-like symptoms, according to the doctors it is not necessarily a reason to go to the emergency room if you have fever and cough and fatigue and sore throat, that sort of thing. the best thing you can do is to stay home. if it is severe obviously you should make a trip to the hospital. bill: rick leventhal in a place hard hit, allentown, pennsylvania. martha. martha: as the flu spreads those of us who keep us safe are trying not to take chances with their health. in wisconsin they're offering flu masks to their officers. they say it is vital to keep everybody on the job. >> when you run a 24/7