Tuberculosis spreads by

Options

A. mosquitoes
B. houseflies
C. contaminated water
D. droplets of sneeze and cough.

Answer

**Step-by-Step Solution:**

1. **Understanding Tuberculosis**: Tuberculosis (TB) is a serious infectious disease primarily caused by a bacterium known as Mycobacterium tuberculosis. It mainly affects the lungs but can also impact other parts of the body.

2. **Mode of Transmission**: The primary way tuberculosis spreads is through airborne respiratory droplets. This means that when a person who is infected with TB coughs or sneezes, tiny droplets containing the bacteria are released into the air.

3. **Inhalation of Droplets**: If another person inhales these droplets, the bacteria can enter their respiratory system, leading to infection. This is why TB is considered contagious.

4. **Other Transmission Methods**: While the main method of transmission is through respiratory droplets, TB can also be transmitted through saliva, but this is less common.

5. **Exclusion of Other Options**: The other options provided (mosquitoes, houseflies, and contaminated water) are not methods of transmission for tuberculosis. Therefore, they can be excluded.

6. **Conclusion**: The correct answer to the question of how tuberculosis spreads is through "Droplets of Sneeze and Cough."

**Final Answer**: Tuberculosis spreads by droplets of sneeze and cough.

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