This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
Organism implicated in Cellulitis following animal bites is 
Select and explain. 
A. Staph.aureus, B. Pseudomaonas, C. Pasteurella, D. Klebsiella
C: Pasteurella
Answer: C: Pasteurella 
Explanation: Pasteurella multocidaDistinguishing Features: small gram-negative rods; facultative anaerobic rodsReservoir: mouths of many animals, especially cats and dogsTransmission: animal bites; paicularly from cat bitesPathogenesis: endotoxin, capsule; spreads rapidly within the skin, no exotoxins knownDisease: cellulitis with lymphadenitis (rapidly spreading wound infections, frequently polymicrobial infections)Diagnosis: rarely cultured because routine prophylaxis is commonTreatment: amoxicillin/clavulanate for cat bites; resistant to macrolidesPrevention: amoxicillin/clavulanate is standard prophylaxis and treatment for most bites (including human), along with a thorough cleaningOther organisms associated with animal bites:Eikenella corrodens: human bites or fist fight injuriesCapnocytophaga canimorsus: dog bite woundsBaonella henselae: Cats and dogs/ bites, scratches, fleasRef: Jawetz; 27th edition; Page no: 278