Human and animal bite wounds.

Bite wounds account for 1 percent of emergency department visits. Most bites occur on the hands. Human bites cause serious injury more often than animal bites do. Pasteurella multocida is found in about 25 percent of dog bites and a higher percentage of cat bites. Alpha-hemolytic streptococci are the most frequent isolates from human bite wounds. Anaerobic bacteria are commonly found in all types of infected bites.