What is the pathogen of ascariasis? How it can be controlled?

Explanation

### Step-by-Step Solution:

1. **Identify the Pathogen**:
- The pathogen responsible for ascariasis is a nematode known as *Ascaris lumbricoides*. This is a type of parasitic worm that infects the intestines of humans.

2. **Understanding Transmission**:
- Ascariasis is primarily transmitted through the ingestion of contaminated food or water. The eggs of *Ascaris lumbricoides* can be found in soil contaminated with feces, and they can survive in the environment for extended periods.

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