Hepatitis A is transmitted by –
**Core Concept**
Hepatitis A is a viral liver disease caused by the **hepatitis A virus (HAV)**, which is primarily spread through the **fecal-oral route**. This mode of transmission involves the ingestion of contaminated food or water.
**Why the Correct Answer is Right**
The correct answer is related to the **fecal-oral route**, which is the primary mode of transmission for hepatitis A. This occurs when an individual ingests food or water contaminated with the feces of an infected person, often due to poor sanitation or hygiene.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect as it is not the primary mode of transmission for hepatitis A.
**Option B:** Incorrect as it is not the primary mode of transmission for hepatitis A.
**Option C:** Incorrect as it is not the primary mode of transmission for hepatitis A.
**Option D:** This is the correct answer as hepatitis A is transmitted by the **fecal-oral route**.
**Clinical Pearl / High-Yield Fact**
Hepatitis A can be prevented by **vaccination** and practicing good hygiene, such as washing hands frequently.
**Correct Answer:** D. Fecal-oral route