Health officials say that's the highest number since they began keeping records in 2004.
For the last two weeks, outpatient visits for flu have steadily declined, signaling that the end of the flu season may be near, according to the Centers for Disease Control.
Flu cases in Pennsylvania dropped off for the third week in a row and the state department of health on Tuesday said the flu season has peaked.
"We strongly encourage everyone to continue practicing the important preventive measures we have been promoting including staying home when you're sick, calling your doctor at the first signs of flu-like illness, washing your hands frequently, and covering coughs and sneezes", Rattay said.
DE public health officials say the death toll from the flu has risen to 28, tying the record death total from three years ago.
"These numbers reflect only laboratory-confirmed cases and the actual number of flu cases in DE is likely much higher", the statement said. In January, a Fremont County child died from the flu, the first pediatric flu death in the state.
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The CDC said last month that the flu vaccine has only been 36 percent effective.
Hospitalizations for the flu were also down more than 50 percent. According to CDC, 9 percent of deaths in the USA were caused by diseases such as pneumonia and flu.
More information about the free flu clinics can be found here.
On Friday, Campbell County Memorial Hospital implemented a handful of visiting restrictions in the maternal and child unit for respiratory syncytial virus (RSV) - not for flu.
Last year, the flu season in Wyoming peaked at the end of January.
Those numbers, though, are only for people who went to a doctor to get tested.