Question:
Which of the following disease is NOT caused by Coronaviridae?
Which of the following disease is NOT caused by Coronaviridae?
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PRRS virus belongs to the family Arteriviridae, whereas the major enteric and respiratory pig viruses like TGEV and PEDV are coronaviruses.
Updated On: Aug 24, 2026
- Transmissible gastroenteritis in pigs
- Porcine epidemic diarrhea
- Infectious bronchitis disease in poultry
- Porcine respiratory and reproductive syndrome
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Viral families are classified based on their genome structure, capsid symmetry, envelope presence, and replication strategy.
Step 2: Detailed Explanation:
Let us classify the causative agents of each disease:
- (A) Transmissible gastroenteritis (TGE) in pigs: Caused by TGE virus, which belongs to the family Coronaviridae.
- (B) Porcine epidemic diarrhea (PED): Caused by PED virus, which belongs to the family Coronaviridae.
- (C) Infectious bronchitis (IB) in poultry: Caused by IB virus, which is a classic avian coronavirus belonging to the family Coronaviridae.
- (D) Porcine reproductive and respiratory syndrome (PRRS): Caused by PRRS virus, which belongs to the family Arteriviridae (within the order Nidovirales, but distinct from the family Coronaviridae).
Therefore, Porcine reproductive and respiratory syndrome is not caused by Coronaviridae.
Step 3: Final Answer
The correct option is (D).
Viral families are classified based on their genome structure, capsid symmetry, envelope presence, and replication strategy.
Step 2: Detailed Explanation:
Let us classify the causative agents of each disease:
- (A) Transmissible gastroenteritis (TGE) in pigs: Caused by TGE virus, which belongs to the family Coronaviridae.
- (B) Porcine epidemic diarrhea (PED): Caused by PED virus, which belongs to the family Coronaviridae.
- (C) Infectious bronchitis (IB) in poultry: Caused by IB virus, which is a classic avian coronavirus belonging to the family Coronaviridae.
- (D) Porcine reproductive and respiratory syndrome (PRRS): Caused by PRRS virus, which belongs to the family Arteriviridae (within the order Nidovirales, but distinct from the family Coronaviridae).
Therefore, Porcine reproductive and respiratory syndrome is not caused by Coronaviridae.
Step 3: Final Answer
The correct option is (D).
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