All of the following diseases cause by bacteria except-

Options

A. Flu
B. Cholera
C. Tetanus
D. Typhoid

Answer

To solve the question "All of the following diseases are caused by bacteria except-", we will analyze each option provided to identify which disease is not caused by bacteria.

**Step 1: Analyze the first option - Flu**
- The flu is caused by the influenza virus, not by bacteria. Therefore, flu is not a bacterial disease.

**Step 2: Analyze the second option - Cholera**
- Cholera is caused by the bacterium Vibrio cholerae. This confirms that cholera is a bacterial disease.

**Step 3: Analyze the third option - Tetanus**
- Tetanus is caused by the bacterium Clostridium tetani. Thus, tetanus is also a bacterial disease.

**Step 4: Analyze the fourth option - Typhoid**
- Typhoid is caused by the bacterium Salmonella typhi. Hence, typhoid is also a bacterial disease.

**Conclusion:**
- From the analysis, we find that the only disease listed that is not caused by bacteria is the flu. Therefore, the correct answer is A, flu.

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