LOUISVILLE, Ky. (WDRB) -- Experts with UofL Health said fewer people were vaccinated this year, saying that's a contributing factor to a sharp peak in cases of the flu and other illnesses around Louisville.

"And that has played a significant role in the way that the influenza virus has spread this year," Dazia Mason, an urgent care nurse practitioner with UofL Health, said Monday.

Mason said there's typically a peak of flu cases in January. But this year, she said there's been a peak in January and February. And while it's not too late to get that vaccine, people still need to take precautions because it can take up to two weeks to fully kick in, she said.

"Despite popular belief — because I've heard plenty of patients say it ... — you cannot obtain the flu virus from the flu vaccine," said Mason.

Over the last week, several schools have had to close or go to online learning because of widespread illness. Students in Jefferson, Oldham, Hardin, Spencer and Bullitt counties were among those who didn't go into school several days in order to curb the spread.

As of this past Friday, Data from the Louisville Metro Department of Public Health and Wellness showed flu cases increased by about 1,000 cases for a total of 3,592 cases since the previous week, which saw 2,942.

So far this season in Jefferson County, there have been at least six reported flu-related deaths and at least 32 outbreaks in congregate settings like schools and day cares.

For those who have managed to avoid getting sick, Mason said to keep washing your hands. She said if you already have the flu, stay home and allow your body time to rest.

Flu shots are still available at urgent care centers, and Mason said patients can still get the vaccine even if they've already had the flu this season.

The city's health department tracks reported-flu cases by zip code. For that map, and further flu-related data, click here.

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