Which of the following is/are arboviral diseases –
## Core Concept
Arboviral diseases are caused by viruses transmitted primarily through the bites of infected arthropods like mosquitoes and ticks. These diseases are significant public health concerns globally due to their potential for outbreaks and severe clinical manifestations. Examples include dengue fever, chikungunya, and Zika virus infection.
## Why the Correct Answer is Right
The correct answer includes diseases that are known to be transmitted by arthropods. For instance, **dengue fever** is caused by a virus transmitted by *Aedes* mosquitoes. **Chikungunya** is another disease caused by a virus from the same *Aedes* mosquito genus. **Zika virus infection** also falls into this category, transmitted primarily by *Aedes* species mosquitoes. These are all well-documented arboviral diseases.
## Why Each Wrong Option is Incorrect
- **Option A:** This option might list diseases not primarily classified as arboviral, such as those caused by direct human-to-human transmission or other modes of transmission not involving arthropods.
- **Option B:** Similarly, this could include diseases caused by bacteria, fungi, or other types of viruses not transmitted by arthropods.
- **Option D:** This might include diseases that are not primarily spread through arthropod vectors.
## Clinical Pearl / High-Yield Fact
A key point to remember is that arboviral diseases often present with similar symptoms, such as fever, arthralgia, and rash, making differential diagnosis crucial. For example, **dengue fever** can progress to severe dengue, characterized by hemorrhage and shock. Awareness of the geographic distribution and peak transmission seasons of these diseases can also guide diagnosis and prevention strategies.
## Correct Answer: C.