(a) Name the causative agent of typhoid in humans. (b) Name the test administered to confirm the disease. (c) How does the pathogen gain entry into the human body ? Write the diagnostic symptoms and mention the body organ that gets affected in severe cases.

Explanation

### Step-by-Step Solution:

**(a) Name the causative agent of typhoid in humans.**
- The causative agent of typhoid in humans is **Salmonella typhi**.

**(b) Name the test administered to confirm the disease.**
- The test administered to confirm typhoid disease is known as the **Widal test**.

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