"The flu (also called influenza), is a very contagious respiratory infection. Flu is spread very easily from person to person. People are usually infected when a person coughs or sneezes."
Why is this important?: "The flu shot (influenza vaccination) can prevent you from getting the flu or reduce your risk of becoming seriously ill from the flu. People who are age 65 and older are at higher risk for developing serious life-threatening medical complications from the flu. If you are age 65 or older, you should get the flu shot once every year.
Residents should be given a flu shot during the flu season (October through March). You should not get another flu shot if you have already received a flu shot at another place, or if there is a medical reason why you should not receive it."
Taken from the Center for Medicaid and Medicare Services: Nursing Home Information for Consumers