Which organism is commonly associated with infection from a dog or cat bite?

Pasteurella multocida is commonly associated with infections resulting from dog or cat bites due to its prevalence in the oral flora of these animals. When a bite occurs, the bacteria can be introduced into the wound, leading to soft tissue infections, cellulitis, and, in some cases, more serious complications such as osteomyelitis or septic arthritis.

The importance of recognizing Pasteurella multocida in bite wounds lies in its rapid onset of infections and the typical clinical presentation, which often includes swelling, redness, and pain at the site of the bite, usually within 12 to 24 hours. This organism is not only common but also sensitive to certain antibiotics, making prompt recognition and treatment essential for effective management of the infection.

Understanding the role of this bacterium helps guide appropriate clinical decisions, especially in trauma and emergency medicine settings, where proper wound care and antibiotic prophylaxis may be necessary to prevent serious outcomes.