Question:
An adult rabbit was presented with chronic mucopurulent nasal discharge and sneezing. Which of the following is the most likely causative agent?
An adult rabbit was presented with chronic mucopurulent nasal discharge and sneezing. Which of the following is the most likely causative agent?
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"Snuffles in rabbits" is a very common exam topic. Always associate "Snuffles" and "mucopurulent nasal discharge in rabbits" with Pasteurella multocida.
Updated On: Jul 23, 2026
- Cheyletiella parasitivorax
- Echinococcus multilocularis
- Eimeria stediae
- Pasteurella multocida
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Chronic respiratory disease in rabbits, characterized by sneezing, coughing, and mucopurulent nasal discharge, is commonly referred to as "snuffles".
It is a highly contagious disease of laboratory and domestic rabbits.
Detailed Explanation:
Let us review the listed organisms and their associated conditions in rabbits:
- Cheyletiella parasitivorax: An ectoparasitic mite that causes "walking dandruff" (fur mite infestation), leading to scaling and pruritus, not respiratory signs.
- Echinococcus multilocularis: A tapeworm where rabbits can act as intermediate hosts for the larval cyst stage, not causing chronic nasal discharge.
- Eimeria stediae: A protozoan that causes hepatic coccidiosis in rabbits, leading to liver damage and icterus.
- Pasteurella multocida: A Gram-negative bacterium that is the primary causative agent of "snuffles" (pasteurellosis) in rabbits, leading to rhinitis, sinusitis, and chronic mucopurulent nasal discharge.
Step 2: Final Answer:
The most likely causative agent of the respiratory signs in this rabbit is Pasteurella multocida, which corresponds to Option (D).
Chronic respiratory disease in rabbits, characterized by sneezing, coughing, and mucopurulent nasal discharge, is commonly referred to as "snuffles".
It is a highly contagious disease of laboratory and domestic rabbits.
Detailed Explanation:
Let us review the listed organisms and their associated conditions in rabbits:
- Cheyletiella parasitivorax: An ectoparasitic mite that causes "walking dandruff" (fur mite infestation), leading to scaling and pruritus, not respiratory signs.
- Echinococcus multilocularis: A tapeworm where rabbits can act as intermediate hosts for the larval cyst stage, not causing chronic nasal discharge.
- Eimeria stediae: A protozoan that causes hepatic coccidiosis in rabbits, leading to liver damage and icterus.
- Pasteurella multocida: A Gram-negative bacterium that is the primary causative agent of "snuffles" (pasteurellosis) in rabbits, leading to rhinitis, sinusitis, and chronic mucopurulent nasal discharge.
Step 2: Final Answer:
The most likely causative agent of the respiratory signs in this rabbit is Pasteurella multocida, which corresponds to Option (D).
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