What is viral hepatitis

Viral hepatitis is an infectious disease caused by a variety of hepatitis viruses, mainly affecting the liver.

Hepatitis viruses include at least five types, A, B, C, D and E, which cause the corresponding types of viral hepatitis. These viruses are transmitted by different routes, such as faecal route (hepatitis A and hepatitis E) or blood and sexual transmission (hepatitis B, hepatitis C and hepatitis D), resulting in inflammatory lesions in the liver. Viral hepatitis has a variety of symptoms, including loss of appetite, nausea, fatigue, hepatomegaly and tenderness, and jaundice in some cases.

Viral hepatitis has strong infectivity, complex transmission routes, widespread prevalence and high incidence, which poses a serious threat to human health.