Nebraska health officials continue to urge people to get a flu shot after a jump of cases in Douglas County.

Officials said Tuesday that the county has 27 confirmed cases of influenza. That’s well above the normal five or fewer at this point in the season.

Douglas County Health Director Dr. Adi Pour says it’s too early to say what the jump means. But he says it’s not too late for people to get vaccinated.

Officials say the flu season lasts two to three months. It peaks around February or March.