(CBS NEWS) -- A second grade teacher from North Texas has died from complications of the flu. Thirty-eight-year-old Heather Holland fell ill with the flu about two weeks ago and was prescribed antiviral medication to treat her symptoms.

But when she saw the $116 price tag, she decided it was too high a cost, CBS Dallas/Fort Worth reports.

"It's principle with her. She's a very frugal person in general, always has been," her husband Frank Holland told the Wall Street Journal.

He told the newspaper he bought the medication himself when he learned she'd refused to fill the prescription. "I made her start taking it," he said.

But Heather's condition worsened.

"Friday night, things escalated and she ended up in the ICU," Frank Holland told the Weatherford Democrat. "The doctors got the blood cultures back and they had to put her on dialysis early Saturday."

Related: Weatherford, TX teacher dies after getting flu

Her death comes as hospitals nationwide are seeing record numbers of patients with the flu. The U.S. Centers for Disease Control and Prevention says this year's flu season has been dominated by H3N2, a particularly nasty strain which is linked to more severe illnesses.

Antiviral drugs like Tamiflu (oseltamivir) can reduce the severity and duration of flu symptoms somewhat if taken within 48 hours of the onset of symptoms, but they are not an immediate cure.

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