What type of organism is Pasteurella multocida?

Pasteurella multocida is classified as a bacterium, specifically a gram-negative, nonmotile, and facultatively anaerobic organism. It belongs to the Pasteurellaceae family and is commonly found in the mouths and respiratory tracts of various animals, particularly domesticated pets like cats and dogs. Pasteurella multocida can be pathogenic, causing a range of infections in humans, especially in those with compromised immune systems or through bites from infected animals.

Understanding its classification as a bacterium is crucial for treatment, as bacterial infections often require antibiotics to manage effectively. Recognizing this organism facilitates appropriate clinical decision-making, including preventive measures for animal bites and understanding the potential for zoonotic transmission.