North Carolina health officials say four people died from the flu last week, raising the state's death toll for the season to 29.
"The majority of cases have been reported in the Perth metropolitan area, but regional areas are also experiencing higher-than-normal influenza activity", she said. Nationwide, 185 child deaths have been attributed to the flu - and about 80 percent of those kids had not received their flu shots.
The agency estimates that up to 11.7 million people had gotten sick with the flu from October through January 26, with roughly half that total visiting a doctor.More news: 7 killed by H1N1 virus in Mongolia
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State health officials say it's not late to get a flu vaccine and encourage people to do so.
Nationally, 3.8 percent of outpatient visits were for flu-like illness last week, above the 2.2 percent baseline, according to the CDC.
Those most at risk for developing complications include young children, the elderly and those with underlying health conditions.