**Question:** All are true about Aedes except

A. Aedes mosquitoes are important vectors for malaria
B. Aedes mosquitoes are only found in tropical regions
C. Aedes mosquitoes can transmit dengue fever
D. Aedes mosquitoes are not found in temperate climates

**Core Concept:** Aedes mosquitoes are a group of mosquitoes known for their role in transmitting several arboviral diseases, including dengue, Zika, and chikungunya viruses. They are found globally, not just in tropical regions.

**Why the Correct Answer is Right:** Option D is incorrect because Aedes mosquitoes can indeed be found in temperate climates, particularly in areas with warm climates and mild winters, such as southern parts of the United States, parts of Europe, and some regions of Asia and Australia.

**Why Each Wrong Option is Incorrect:**

A. Aedes mosquitoes are important vectors for malaria (false): They primarily transmit diseases like dengue, Zika, and chikungunya, not malaria which is transmitted by Anopheles mosquitoes.

B. Aedes mosquitoes are only found in tropical regions (false): Aedes mosquitoes can also inhabit subtropical and warmer temperate climates.

C. Aedes mosquitoes can transmit dengue fever (true): As mentioned above, Aedes mosquitoes are vectors for dengue fever, along with chikungunya and Zika viruses.

**Clinical Pearl:** Understanding the distribution of mosquito vectors like Aedes is crucial for public health measures and disease control. Mosquitoes can be found in diverse climates and are vectors for various arboviral diseases.

**Correct Answer:** D. Aedes mosquitoes are not found in temperate climates.

**Explanation:** Aedes mosquitoes, which are vectors for diseases like dengue, Zika, and chikungunya, can be found in both tropical and subtropical regions, as well as in warmer parts of temperate climates. This is important to consider when planning disease control strategies and public health measures, as these mosquitoes can inhabit a broader range of environments than just tropical regions.