How to tell when your child's sniffles or cough could be something serious

/ Source: TODAY

We’re in the midst of a particularly severe cold and flu season, and it’s hitting kids especially hard. How can you tell when a cough or a runny nose is something to really worry about? Pediatrician Dr. Alanna Levine joins TODAY to tell you what to look for. (By TODAY with our sponsor Vicks VapoRub)