**Core Concept**
Leptospirosis is a zoonotic bacterial infection caused by Leptospira species, primarily affecting the liver and kidneys. It is transmitted through contact with water or soil contaminated with the urine of infected animals.

**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of leptospirosis, which involves the invasion of Leptospira bacteria into the host's tissues. The bacteria multiply within the host's macrophages and cause a systemic inflammatory response, leading to the clinical manifestations of the disease. The Weil's disease, a severe form of leptospirosis, is characterized by jaundice, kidney failure, and hemorrhage.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because leptospirosis is not typically transmitted through direct contact with infected animals.
**Option B:** This option is incorrect because while leptospirosis can be transmitted through contaminated water, it is not the only mode of transmission.
**Option C:** This option is incorrect because leptospirosis is not typically associated with a rash.

**Clinical Pearl / High-Yield Fact**
Leptospirosis can be prevented by avoiding contact with water or soil contaminated with animal urine, and by wearing protective clothing and gloves when working with animals or in areas where the disease is common.