**Question:** Kyasanur forest disease (KFD) is transmitted by-

A. Monkeys
B. Mosquitoes
C. Ticks
D. Spiders

**Core Concept:**
Kyasanur Forest Disease (KFD) is a viral zoonotic disease caused by the KFD virus, which belongs to the Orthobunyavirus genus of the family Bunyaviridae. It primarily affects humans and is found in the Kyasanur Forest region of India.

**Why the Correct Answer is Right:**
KFD is transmitted by Shankar Lake monkeys (Cercopithecus aethiops), which are the natural reservoir of the virus. When a human comes into direct contact with the blood, body fluids, or tissues of an infected monkey, the virus can be transmitted. This is a rare event as the disease is mostly confined to the Kyasanur Forest region.

**Why Each Wrong Option is Incorrect:**
A. Mosquitoes (Option B) are not involved in the transmission of KFD, as the disease is not vector-borne.
C. Ticks (Option C) are not involved in the transmission of KFD, as they are not known to carry or transmit the virus.
D. Spiders (Option D) are not involved in the transmission of KFD, as they are not known to carry or transmit the virus.

**Clinical Pearl:**
Understanding the mode of transmission is crucial in preventing KFD. While the disease is rare, it is essential to be aware of the specific animal reservoir and potential contact situations when visiting endemic areas.

**Correct Answer:**
C. Ticks