Identify the parasite which spreads by the bite of Culex mosquito. Also mention some precautionary measures to be taken for the prevention of this disease.

Explanation

**Step-by-Step Solution:**

1. **Identify the Disease:**
- The disease spread by the bite of the Culex mosquito is known as **Filariasis**.

2. **Identify the Parasite:**
- The causative organism of Filariasis is the **Filarial worm**, specifically **Wuchereria bancrofti**.

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