Gary Dunion and his wife Angelina Dunion, 38, assumed their little girl was just joking around when she complained she was cold but it turned out to be way more serious

A four-year-old girl is fighting for her life after developing a rare brain condition triggered by the flu .

It was November when Sienna Dunion, four, began complaining of being cold but Gary Dunion and his wife Angelina Dunion, 38, assumed she was just joking around. They kept her off school the next day when she had a slight temperature.

But things took a tragic turn when Gary found her unresponsive just a couple of days later and rushed her to hospital. Doctors were forced to put Sienna into an induced coma when her eyes rolled back in her head and she could no longer communicate.

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