The Centers for Disease Control and Prevention warns that this could be a particularly bad flu season across the nation.

The CDC has already said that this year's flu vaccine is only about 50 percent effective.

On Long Island, Nassau County Medical Center officials met with infectious disease experts and school officials about how to treat kids suffering with the flu.

The move comes after dozens of students at Lee Road Elementary School in Wantagh were hit with the flu. Levittown officials say classrooms have since been disinfected.

Officials say 106 students have stayed home from the elementary school because their parents said they had the flu.

Doctors at Nassau University Medical Center say they have had five admissions of patients with the flu this week. Meanwhile, the Nassau County Department of Health says there have already been 232 positive flu cases in the county since Oct. 1. Only 66 cases were confirmed during the same time period last year.

Doctors said the best way to protect yourself and children is to wash your hands and get vaccinated.