Defending yourself against the flu

(CNN) -- Some cities and states are experiencing a Tamiflu drug shortage during this busy flu season, so be prepared. Arm yourself with the best defense you have, your immune system.

Registered dietitian, Elyse Sartor, explains why people should stay away from too much sugar and alcohol.

"Alcohol suppresses your immune system. Too much added sugar can suppress your immune system. Especially during flu season, we need to be very aware of how much we're drinking alcohol and how much added sugar we're eating and minimize those," she says.

Minimize your chances of catching the flu. Disinfect common areas in your home. The flu virus can live on surfaces for several hours, so wash those bed sheets, blankets, towels and your hands.

Even though the flu season is well underway, it's not too late to get vaccinated. Experts recommend that everyone 6 months of age and older get a flu shot.