Coryza disease in poultry is spread through

Options

A. litter
B. water
C. air
D. feed

Answer

**Step-by-Step Solution:**

1. **Identify the Disease**: The question refers to Coryza disease in poultry, which is an important respiratory disease affecting chickens.

2. **Understand the Causative Agent**: Coryza disease is caused by the bacterium *Haemophilus paragallinarum*. This bacterium is responsible for the symptoms associated with the disease.

3. **Determine the Mode of Transmission**: To answer the question, we need to know how this disease spreads. The transcript indicates that Coryza is an airborne disease.

4. **Evaluate the Options**: The options provided are:
- Litter
- Water
- Air
- Feed

5. **Eliminate Incorrect Options**:
- Litter: While litter can harbor pathogens, it is not the primary mode of transmission for Coryza.
- Water: Coryza is not primarily spread through water sources.
- Feed: Feed is also not a significant route for the spread of this disease.

6. **Select the Correct Answer**: Since the disease is caused by an airborne bacterium, the correct answer is that Coryza disease in poultry is spread through the air.

**Final Answer**: Coryza disease in poultry is spread through the air.

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