Question:
Match List I with List II
List I & List II
A. Sigurdsson vaccine & I. Downer cow syndrome
B. Big knee & II. Rat flea
C. Spread eagling & III. Johne's disease
D. Black death & IV. Caprine arthritis encephalitis
Choose the correct answer from the options given below:
Match List I with List II
List I & List II
A. Sigurdsson vaccine & I. Downer cow syndrome
B. Big knee & II. Rat flea
C. Spread eagling & III. Johne's disease
D. Black death & IV. Caprine arthritis encephalitis
Choose the correct answer from the options given below:
List I & List II
A. Sigurdsson vaccine & I. Downer cow syndrome
B. Big knee & II. Rat flea
C. Spread eagling & III. Johne's disease
D. Black death & IV. Caprine arthritis encephalitis
Choose the correct answer from the options given below:
Show Hint
- Sigurdsson vaccine = Johne's disease.
- Big knee in goats = Caprine Arthritis Encephalitis (CAE).
- Spread-eagling posture = Obturator nerve paralysis (Downer cow).
- Black death vector = Rat flea (Xenopsylla cheopis).
- Big knee in goats = Caprine Arthritis Encephalitis (CAE).
- Spread-eagling posture = Obturator nerve paralysis (Downer cow).
- Black death vector = Rat flea (Xenopsylla cheopis).
Updated On: Aug 13, 2026
- A-IV, B-III, C-I, D-II
- A-III, B-IV, C-I, D-II
- A-III, B-IV, C-I, D-III
- A-II, B-IV, C-I, D-III
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
This question matches veterinary terms, anatomical clinical signs, vaccines, and vectors with their corresponding disease entities.
Detailed Explanation:
Let us analyze each element:
- A. Sigurdsson vaccine: Vallee and Sigurdsson developed the first vaccines against paratuberculosis, or III. Johne's disease, which is caused by Mycobacterium avium subsp. paratuberculosis. This vaccine uses killed bacterial cells in an oil adjuvant to reduce clinical signs and shedding.
- B. Big knee: In goats, Caprine Arthritis Encephalitis (CAE) is caused by a lentivirus. The arthritic form typically manifests as a chronic, bilateral proliferative arthritis of the carpal joints, commonly referred to as "big knee" or IV. Caprine arthritis encephalitis.
- C. Spread eagling: Maternal obstetric paralysis or obturator nerve injury (often during dystocia) prevents adduction of the hind limbs. This causes the cow to slide or split her legs outwards when attempting to stand, a posture known as "spread-eagling" in I. Downer cow syndrome.
- D. Black death: Bubonic plague, caused by Yersinia pestis, is historically known as the Black Death. It is transmitted to humans and animals by the bite of infected fleas, specifically the tropical rat flea, Xenopsylla cheopis, matching with II. Rat flea.
Therefore, the correct matches are: A-III, B-IV, C-I, D-II.
Step 2: Final Answer:
The matching corresponds to Option (B).
This question matches veterinary terms, anatomical clinical signs, vaccines, and vectors with their corresponding disease entities.
Detailed Explanation:
Let us analyze each element:
- A. Sigurdsson vaccine: Vallee and Sigurdsson developed the first vaccines against paratuberculosis, or III. Johne's disease, which is caused by Mycobacterium avium subsp. paratuberculosis. This vaccine uses killed bacterial cells in an oil adjuvant to reduce clinical signs and shedding.
- B. Big knee: In goats, Caprine Arthritis Encephalitis (CAE) is caused by a lentivirus. The arthritic form typically manifests as a chronic, bilateral proliferative arthritis of the carpal joints, commonly referred to as "big knee" or IV. Caprine arthritis encephalitis.
- C. Spread eagling: Maternal obstetric paralysis or obturator nerve injury (often during dystocia) prevents adduction of the hind limbs. This causes the cow to slide or split her legs outwards when attempting to stand, a posture known as "spread-eagling" in I. Downer cow syndrome.
- D. Black death: Bubonic plague, caused by Yersinia pestis, is historically known as the Black Death. It is transmitted to humans and animals by the bite of infected fleas, specifically the tropical rat flea, Xenopsylla cheopis, matching with II. Rat flea.
Therefore, the correct matches are: A-III, B-IV, C-I, D-II.
Step 2: Final Answer:
The matching corresponds to Option (B).
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