DOVER — Flu cases have been confirmed in all three counties and the Division of Public Health is urging Delawareans to get flu shots.

No deaths have been reported from the flu thus far.

In New Castle, a 77-year-old and a 64-year-old were diagnosed with the flu, while a 27-year-old and 39-year-old in Kent and an infant in Sussex were identified.

“Now is the time to get vaccinated. We understand none of the Delaware cases were immunized, which is not uncommon this early in the season,” DPH Director Karyl Rattay said in a statement. “But vaccination is our most effective weapon against preventing the flu and its severity. Public Health recommends getting a flu vaccine every year.”

The two main types of flu, or influenza, are A and B.

Flu symptoms can arrive suddenly and include fever, sore throat, cough, runny or stuff nose, headaches and fatigue. More serious illnesses like pneumonia, bronchitis and ear infections can result.

“It takes about two weeks after vaccination for your body to develop antibodies protect you from the flu so now is the time to get vaccinated before the busy holiday season begins,” DPH Medical Director Awe Maduka-Ezeh said in a statement. “The flu vaccine is readily available through medical providers, pharmacies and some grocery stores.”

To help prevent the flu, people can wash their hands regularly, use hand sanitizer and utilize a tissue or inner elbow to cover coughs and sneezes.

Anyone with flu-like symptoms should stay home until they are free of fever for at least 24 hours or are on medication.

For information on DPH flu clinics, call (800) 282-8672 or visit flu.delaware.gov.