Which of the following is an incorrect match of vector and the disease it transmits?

Options

A. Xenopsylla — Bubonic Plague
B. Culex — Elephantiasis
C. Aedes — Dengue
D. Phlebotomus — Sleeping sickness

Answer

To solve the question regarding the incorrect match of vector and the disease it transmits, we will analyze each option provided.

### Step 1: Analyze the first option
- **Vector**: Xenophysilla
- **Disease**: Bubonic plague

**Analysis**: Xenophysilla is indeed associated with the transmission of bubonic plague. This pair is correctly matched.

### Step 2: Analyze the second option
- **Vector**: Culex
- **Disease**: Elephantiasis

**Analysis**: Culex mosquitoes are known to transmit lymphatic filariasis, which is commonly associated with elephantiasis. Thus, this pair is also correctly matched.

### Step 3: Analyze the third option
- **Vector**: AIDS Mosquito
- **Disease**: Dengue Fever

**Analysis**: There is no specific mosquito known as the "AIDS mosquito." Dengue fever is transmitted by Aedes mosquitoes, not by a mosquito referred to as the "AIDS mosquito." Therefore, this pair is incorrectly matched.

### Step 4: Analyze the fourth option
- **Vector**: Phlebotomus
- **Disease**: Sleeping sickness

**Analysis**: Phlebotomus sand flies are known to transmit leishmaniasis (Kala Azar), not sleeping sickness. Sleeping sickness is caused by the tsetse fly. Thus, this pair is incorrectly matched.

### Conclusion
The incorrect matches are:
- **Third Option**: AIDS Mosquito - Dengue Fever (incorrect)
- **Fourth Option**: Phlebotomus - Sleeping sickness (incorrect)

However, the question asks for a single incorrect match. The most prominently incorrect match is the third option.

### Final Answer
The incorrect match of vector and the disease it transmits is:
**AIDS Mosquito - Dengue Fever**