According to the Centers for Disease Control and Prevention, more than 6,000 kids under 5 years old are hospitalized by the flu each year.
Most kids older than six months can get a vaccine. But if you don't get the flu shot or if your child contracts a strain of flu not covered in the vaccine, it can be tough to tell whether a child has the flu or just a cold.
We spoke to a Banner University Medical Center physician who gave us some flu symptoms to look out for, including fever, loss of appetite, aches and sweating.
When treating the flu, over-the-counter symptoms, hydration and humidifiers can all help ease symptoms and speed recovery.