Question:
Match List-I with List-II
List-I (Infectious agents) List-II (Associated disease) (A) Bacteria other than Mycoplasma (I) Chronic respiratory disease (B) Virus (II) Brooder pneumonia (C) Mycoplasma (III) Blue tongue (D) Fungi (IV) Fowl cholera
Match List-I with List-II
| List-I (Infectious agents) | List-II (Associated disease) |
|---|---|
| (A) Bacteria other than Mycoplasma | (I) Chronic respiratory disease |
| (B) Virus | (II) Brooder pneumonia |
| (C) Mycoplasma | (III) Blue tongue |
| (D) Fungi | (IV) Fowl cholera |
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To solve etiological matching questions quickly:
- *Mycoplasma* \(\rightarrow\) Chronic Respiratory Disease (CRD) in poultry.
- Fungi \(\rightarrow\) Brooder pneumonia (*Aspergillus*).
- Virus \(\rightarrow\) Bluetongue (Orbivirus).
- Bacteria \(\rightarrow\) Fowl cholera (*Pasteurella multocida*).
- *Mycoplasma* \(\rightarrow\) Chronic Respiratory Disease (CRD) in poultry.
- Fungi \(\rightarrow\) Brooder pneumonia (*Aspergillus*).
- Virus \(\rightarrow\) Bluetongue (Orbivirus).
- Bacteria \(\rightarrow\) Fowl cholera (*Pasteurella multocida*).
Updated On: Jul 23, 2026
- (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
- (A) - (II), (B) - (III), (C) - (I), (D) - (IV)
- (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
- (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Veterinary medicine requires classifying animal and avian diseases based on their distinct etiological agents.
These agents can be conventional bacteria, atypical bacteria (Mycoplasmas), viruses, or fungi.
Step 2: Detailed Explanation:
Let us match the etiological agents in List I with the diseases in List II:
- (A) Bacteria other than Mycoplasma: This matches with (IV) Fowl cholera.
Fowl cholera is a severe contagious disease of domestic and wild poultry caused by *Pasteurella multocida*, which is a conventional Gram-negative, coccobacillus bacterium.
Thus, (A) matches with (IV).
- (B) Virus: This matches with (III) Blue tongue.
Bluetongue is a non-contagious, insect-transmitted viral disease of domestic and wild ruminants (primarily sheep).
It is caused by the Bluetongue virus, which belongs to the genus *Orbivirus* within the family *Reoviridae*.
Thus, (B) matches with (III).
- (C) Mycoplasma: This matches with (I) Chronic respiratory disease.
Chronic Respiratory Disease (CRD) in chickens is caused primarily by *Mycoplasma gallisepticum*.
Mycoplasmas are atypical bacteria that completely lack a peptidoglycan cell wall, making them resistant to beta-lactam antibiotics.
Thus, (C) matches with (I).
- (D) Fungi: This matches with (II) Brooder pneumonia.
Brooder pneumonia (pulmonary aspergillosis) is a common respiratory disease of young chicks and poults.
It is caused by inhaling spores of the fungus *Aspergillus fumigatus*, which grows in warm, damp hatchery brooders and litter.
Thus, (D) matches with (II).
This gives the correct sequence: (A) - (IV), (B) - (III), (C) - (I), (D) - (II).
Step 3: Final Answer:
The correct option is (A).
Veterinary medicine requires classifying animal and avian diseases based on their distinct etiological agents.
These agents can be conventional bacteria, atypical bacteria (Mycoplasmas), viruses, or fungi.
Step 2: Detailed Explanation:
Let us match the etiological agents in List I with the diseases in List II:
- (A) Bacteria other than Mycoplasma: This matches with (IV) Fowl cholera.
Fowl cholera is a severe contagious disease of domestic and wild poultry caused by *Pasteurella multocida*, which is a conventional Gram-negative, coccobacillus bacterium.
Thus, (A) matches with (IV).
- (B) Virus: This matches with (III) Blue tongue.
Bluetongue is a non-contagious, insect-transmitted viral disease of domestic and wild ruminants (primarily sheep).
It is caused by the Bluetongue virus, which belongs to the genus *Orbivirus* within the family *Reoviridae*.
Thus, (B) matches with (III).
- (C) Mycoplasma: This matches with (I) Chronic respiratory disease.
Chronic Respiratory Disease (CRD) in chickens is caused primarily by *Mycoplasma gallisepticum*.
Mycoplasmas are atypical bacteria that completely lack a peptidoglycan cell wall, making them resistant to beta-lactam antibiotics.
Thus, (C) matches with (I).
- (D) Fungi: This matches with (II) Brooder pneumonia.
Brooder pneumonia (pulmonary aspergillosis) is a common respiratory disease of young chicks and poults.
It is caused by inhaling spores of the fungus *Aspergillus fumigatus*, which grows in warm, damp hatchery brooders and litter.
Thus, (D) matches with (II).
This gives the correct sequence: (A) - (IV), (B) - (III), (C) - (I), (D) - (II).
Step 3: Final Answer:
The correct option is (A).
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