Chicago animal shelters like PAWS are still coping with the spread of a new, highly contagious strain of canine influenza. In the U.S., the outbreak of the H3N2 dog flu virus was first found in Chicago last year. It's now spreading to western states.

Officials say the outbreak of the so-called dog flu throughout the Chicago area is now of greater concern than originally thought. Dr. Donna Alexander, administrator of the Cook County Department of Animal & Rabies Control, tells us what the latest findings mean for pets and what animal control officials are doing to contain the outbreak.