Vector for ascariasis is

Options

A. Female Culex
B. Female Anopheles
C. Housefly
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Ascariasis**: Ascariasis is an infection caused by a parasitic roundworm known as Ascaris lumbricoides. It primarily affects the intestines of humans.

2. **Identifying Symptoms**: The symptoms of Ascariasis can range from mild to severe. Initial symptoms may include abdominal pain, nausea, and vomiting. In more severe cases, it can lead to bloody stools, persistent cough, wheezing, and shortness of breath.

3. **Transmission of Ascariasis**: Ascariasis is spread through the feces of an infected person. The feces contain eggs of the Ascaris roundworm, which can contaminate food and water, leading to infection in healthy individuals.

4. **Evaluating the Options**:
- **Female Culex**: This mosquito is known to be a vector for filiariasis, not Ascariasis.
- **Female Anopheles**: This mosquito acts as a vector for malaria, which is also incorrect for Ascariasis.
- **Housefly**: While houseflies can transmit various pathogens, they are not a vector for Ascariasis.
- **None of the Above**: Since Ascariasis does not have a specific vector and spreads through fecal contamination, this option is correct.

5. **Conclusion**: The correct answer to the question "Vector for Ascariasis is" is **None of the Above**.

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