What is Hepatitis A?

Hepatitis A is a viral infection that primarily affects the liver and can be transmitted through contaminated food and water, which is why the correct choice is that it is a disease caused by a virus that can be transmitted through food. The virus is often spread when a person ingests food or water that has been contaminated with the feces of an infected individual, making proper food handling and hygiene crucial in preventing outbreaks.

The distinction between Hepatitis A and the other options is significant. For instance, Hepatitis A is not related to the respiratory system as bacterial infections typically are, which relates to the first option. The disease also does not pertain to skin conditions linked to hygiene, which excludes the third choice. Additionally, Hepatitis A is not a food preservation method, which rules out the fourth option. Understanding these distinctions clarifies the nature of Hepatitis A as a viral infection, emphasizing the importance of food safety practices to prevent transmission.