The tick-borne hemorrhagic fever found in Karnataka state is – rpt
**Core Concept**
The question is testing the student's knowledge of tick-borne diseases prevalent in India, specifically in the state of Karnataka. **Kyasanur Forest Disease (KFD)** is a viral hemorrhagic fever caused by a tick-borne virus, which is endemic in certain regions of India, including Karnataka.
**Why the Correct Answer is Right**
KFD is a zoonotic disease, meaning it is transmitted from animals to humans, primarily through the bite of an infected tick. The virus is maintained in a cycle between ticks and rodents. When an infected tick bites a human, the virus is transmitted, causing symptoms such as fever, headache, and hemorrhaging. The disease can be severe and even life-threatening if left untreated.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because **Dengue fever** is a mosquito-borne disease, not a tick-borne disease. While both diseases can cause hemorrhaging, they have different vectors and epidemiology.
**Option B:** This option is incorrect because **Leptospirosis** is a bacterial disease transmitted through contact with contaminated water or soil, not through tick bites.
**Option C:** This option is incorrect because **Rickettsial diseases**, such as scrub typhus, are also transmitted through tick bites, but they are caused by different pathogens and have distinct clinical presentations.
**Clinical Pearl / High-Yield Fact**
KFD is a notifiable disease in India, and prompt diagnosis and treatment are crucial to prevent complications and mortality. Healthcare providers should be aware of the risk factors and clinical presentation of KFD, especially in areas where the disease is endemic.
**Correct Answer:** C.