**Question:** The following are true regarding Lyme's Disease, except:-

A. Lyme disease is caused by the bacterium Borrelia burgdorferi.
B. Early Lyme disease symptoms include fever, headache, and fatigue.
C. Lyme disease is transmitted through tick bites in tropical regions only.
D. Lyme disease can lead to long-term complications in severe cases.

**Correct Answer:** C. Lyme disease is transmitted through tick bites in tropical regions only.

**Core Concept:** Lyme disease is a tick-borne infectious disease caused by the bacterium Borrelia burgdorferi. The disease is transmitted to humans and animals when they are bitten by infected black-legged ticks (Ixodes scapularis) or deer ticks (Ixodes pacificus) in the United States, or when they are bitten by the Ixodes ricinus tick in Europe and Asia.

Lyme disease is a zoonotic disease, meaning it is transmitted between animals and humans. The disease is named after Olde Barnstable Town, Massachusetts, where the first cases were identified in 1975. The bacterium Borrelia burgdorferi infects small mammals, such as mice and deer, which serve as reservoirs for the bacterium. When these animals are bitten by ticks, the bacterium can be transmitted to the tick, which then transmits it to humans or other animals when they come into contact with the infected tick.

**Why the Correct Answer is Right:**

Lyme disease is primarily transmitted through tick bites in the United States and Europe/Asia, which aligns with the correct answer D. The disease is caused by the bacterium Borrelia burgdorferi and can present with a range of symptoms including fever, headache, and fatigue, as mentioned in options A and B. However, the disease is not limited to tropical regions, which makes option C incorrect. Lyme disease is not exclusively found in tropical areas and can occur in temperate regions as well.

**Why Each Wrong Option is Incorrect:**

Option A is correct because Lyme disease is caused by the bacterium Borrelia burgdorferi, and its symptoms can include fever, headache, and fatigue. However, the disease can be found in various regions, not just tropical ones.

Option B is correct because Lyme disease can present with fever, headache, and fatigue, which are common symptoms. However, Lyme disease is not limited to tropical regions, making it incorrect.

Option C is incorrect because Lyme disease is not exclusively found in tropical regions. It can occur in temperate regions, including North America, Europe, and parts of Asia.

**Clinical Pearls:**

Lyme disease is a significant public health concern, affecting over 300,000 people in the United States alone. Early diagnosis and treatment are crucial to prevent long-term complications.

Diagnosing Lyme disease early is essential, as untreated infections can lead to neurological, cardiac, and joint manifestations. Early antibiotic treatment can prevent these complications and has a high cure rate (around 95%).