What is the pathogen of hepatitis A?

Generally speaking, hepatitis A refers to hepatitis A virus infection, the pathogen of which is the hepatitis A virus. Hepatitis A is a contagious disease caused by the hepatitis A virus, primarily characterized by inflammation and damage to the liver. The details are as follows:

The hepatitis A virus belongs to the genus Hepatovirus within the family Picornaviridae. After human infection with the hepatitis A virus, most cases present as subclinical or asymptomatic infections, with only a small number developing into acute hepatitis A. The hepatitis A virus has strong survivability and can remain viable for several days under ordinary environmental conditions. It spreads easily via the fecal-oral route through the digestive tract. Therefore, patients suspected of infection should visit an infectious disease department for proper isolation and receive treatments aimed at protecting the liver and reducing elevated liver enzymes.

It is important to note that the hepatitis A virus is difficult to inactivate and particularly resilient in raw foods. Thus, individuals should avoid consuming raw or cold foods in daily diet to prevent hepatitis A virus infection and subsequent hepatitis. Additionally, eating utensils should be frequently disinfected and not shared among multiple people to avoid cross-infection. Maintaining good hygiene practices—such as frequent handwashing and regular disinfection—is essential to prevent pathogens from entering the body through the mouth.

If a patient develops any symptoms of illness, it is recommended to seek medical attention at a hospital promptly to avoid delays in diagnosis and treatment.