Roundwarm infection can be detected by

Options

A. stool test
B. dermal test
C. scratch test
D. all of above

Answer

To determine how roundworm infection can be detected, we can analyze the options provided:

1. **Understanding Roundworm Infection**: Roundworms are endoparasites that live inside the host's body and can cause various health issues, including diarrhea and fever.

2. **Option A: Stool Test**: This is a common method for detecting roundworm infections. A stool sample is collected and examined under a microscope to identify the presence of roundworm eggs or larvae.

3. **Option B: Dermal Test**: This method involves testing the skin or cells taken from the intestine. While it may not be the primary method for detecting roundworm infections, it can provide additional information.

4. **Option C: Scratch Test**: This test involves scratching the skin to check for reactions that may indicate an infection. Similar to the dermal test, it is not the most direct method for detecting roundworms but can be part of a broader diagnostic approach.

5. **Option D: All of the Above**: Since all the mentioned tests (stool test, dermal test, and scratch test) can potentially be used to detect roundworm infections, this option suggests that multiple methods can be employed for diagnosis.

**Conclusion**: The best answer to the question is option D: All of the above.