. >> reporter: he says the dog attacked her huskey. >> so i got off my bicycle and went over to where the dogs were just chewing up my dog and started beating on them violently with my bicycle chain. >> reporter: the 13-year-old huskey suffered severe injury. wilson was cut and bruised. >> i suffered a lot of bites on my hands. i have a pretty large contusion on my face. i had stitches on my lower lip. >> reporter: but the pitbulls ran off. san jose animal control sergeant responded to the attack and said there are more than 1200 dog bites reported in san jose last year. and 56 hearings to determine whether dogs were dangerous. >> the city defines the dangerous dog as a dog that has injured a human being. >> reporter: specific dogs are labeled as dangerous because of the animal's history, not the breed. >> we don't really do it by breed, because we as a department do not believe that it's a breed-specific type behavior. >> reporter: but according to the centers for disease control, pitbulls killed more humans than any other breed. in a nationwide study spanning two decades, rottweiler