What type of pathogen is Hepatitis A classified as?

Hepatitis A is classified as a virus, which is the correct identification for this pathogen. Viruses are infectious agents that require a living host to multiply and are significantly smaller than bacteria. Hepatitis A specifically affects the liver, leading to inflammation and, in some cases, serious illness. It is primarily transmitted through the consumption of contaminated food or water, highlighting the importance of food safety practices in preventing outbreaks.

In contrast, the other options such as bacteria, parasites, and fungi refer to different types of pathogens with distinct characteristics and modes of infection. Bacteria are single-celled organisms that can replicate independently, while parasites require a host to survive and reproduce. Fungi, on the other hand, are a separate group of organisms that include yeasts and molds. Understanding these classifications helps in the effective prevention and control of foodborne illnesses.