Given three general of mosquitoes (Culex, Anopheles, and Aedes) act as vectors for which of the following diseases world wide –
## **Core Concept**
The question tests knowledge of mosquito-borne diseases and their specific vectors. Different genera of mosquitoes are associated with the transmission of various significant human diseases. Understanding these associations is crucial for public health and epidemiology.
## **Why the Correct Answer is Right**
The correct answer involves identifying diseases transmitted by Culex, Anopheles, and Aedes mosquitoes.
- **Culex** mosquitoes are known vectors for diseases such as **filariasis** (specifically, lymphatic filariasis caused by Wuchereria bancrofti, Brugia malayi, and Brugia timori) and **Japanese encephalitis**.
- **Anopheles** mosquitoes are the primary vectors of **malaria**, transmitted by the Plasmodium parasites.
- **Aedes** mosquitoes are vectors for diseases like **dengue fever**, **chikungunya**, **yellow fever**, and **Zika virus**.
## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not accurately represent the combination of diseases associated with these mosquito genera.
- **Option B:** Similarly, this option does not correctly match the diseases with the mosquito vectors provided.
- **Option D:** This option is also incorrect as it does not accurately list diseases transmitted by Culex, Anopheles, and Aedes mosquitoes.
## **Clinical Pearl / High-Yield Fact**
A key point to remember is the association of **Anopheles** with **malaria**, **Aedes** with **dengue** and **Zika**, and **Culex** with **filariasis** and **Japanese encephalitis**. This knowledge is crucial for diagnosis and prevention strategies in endemic areas.
## **Correct Answer:** B. Malaria, Filariasis, Dengue.