Name one viral and one bacterial disease of poultry.

Explanation

**Step-by-Step Solution:**

1. **Identify the Context**: The question asks for one viral and one bacterial disease affecting poultry. Poultry refers to domesticated birds raised for meat and egg production.

2. **Viral Disease**: One common viral disease in poultry is **Rani Khet disease**, which is also known as **Newcastle disease**. This disease primarily affects the respiratory system of birds and can lead to severe health issues and high mortality rates in affected flocks.

3. **Bacterial Disease**: A well-known bacterial disease in poultry is **Salmonellosis**. This disease is caused by the **Salmonella** bacteria and can lead to various health problems in birds, including gastrointestinal issues and can also pose a risk to human health through contaminated poultry products.

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