Spread by mosquitoes: (PGI Nov 2010)
**Core Concept**
The question tests knowledge of vector-borne diseases, specifically those spread by **mosquitoes**. Mosquitoes are known to transmit various pathogens, including viruses and parasites, to humans.
**Why the Correct Answer is Right**
Although the answer choices are not provided, diseases like **malaria**, **dengue fever**, and **filariasis** are classic examples of mosquito-borne illnesses. These diseases are transmitted through the bite of an infected **female mosquito**, which injects the pathogen into the human host.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific answer choices, it's challenging to provide detailed incorrect options. However, incorrect options might include diseases not typically spread by mosquitoes, such as **influenza** or **tuberculosis**.
**Option B:** Similarly, this might be a disease spread by another vector, like **ticks** or **fleas**.
**Option C:** Could be a non-vector borne disease, such as a **bacterial infection**.
**Option D:** Might be another incorrect vector-borne disease.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that **mosquito-borne diseases** can have significant morbidity and mortality, especially in tropical and subtropical regions.
**Correct Answer:** Not provided in the query.