What are the types of viral hepatitis?

Written by Xiong Hong Hai
Infectious Disease
Updated on March 25, 2025
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Common types of viral hepatitis include Hepatitis A, Hepatitis B, Hepatitis C, Hepatitis D, and Hepatitis E, as well as Hepatitis G. Infections by the Epstein-Barr virus and cytomegalovirus can also potentially cause liver damage. Of course, there are other related viral infections that can lead to liver damage and can be classified as viral hepatitis. Different types of viral hepatitis have different transmission routes and methods, and their prognosis and outcomes vary. Appropriate measures should be taken based on the specific circumstances.

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How is viral hepatitis transmitted?

Viral hepatitis comes in many types, with its main pathogens including hepatitis A, B, C, D, E, and others. Each type targets different transmission pathways; for example, hepatitis A and E are primarily transmitted via the digestive tract. They can spread through fecal-oral transmission, and ingesting contaminated food can lead to the dissemination of hepatitis A or E. For hepatitis B, the main transmission routes include mother-to-child transmission, blood and body fluid transmission, and close personal contact can also lead to the transmission of hepatitis B. As for hepatitis C, the primary transmission method is through transfusion of blood or blood products, and patients on dialysis are a high-risk group for hepatitis C infection.

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Written by Xiong Hong Hai
Infectious Disease
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How do you get viral hepatitis?

Viral hepatitis is primarily due to infection by certain hepatitis viruses. Different types of viral hepatitis have different modes of transmission and routes of spread, and their outcomes and prognoses also vary. Hepatitis A and E are mainly transmitted through the digestive tract and the fecal-oral route, typically from consuming food or water contaminated with hepatitis A or E viruses. Hepatitis B and C, on the other hand, are mainly transmitted through blood, perinatal transmission, and sexual contact, with infection from casual contact being rare.

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Written by Ye Xi Yong
Infectious Diseases
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How to test for viral hepatitis?

Viral hepatitis is primarily caused by hepatitis A, B, C, D, and E viruses. However, its diagnosis is mainly confirmed through blood tests by examining serological results. It is generally difficult to differentiate clinically because conditions like hepatitis A and E have very similar clinical manifestations. Similarly, hepatitis B and C can show similar symptoms during certain stages of the disease. Therefore, the examination of viral hepatitis primarily involves blood tests for serological studies of the hepatitis virus.

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Written by Zhang Jian Kang
Infectious Disease
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Can you stay up late with viral hepatitis?

Patients with viral hepatitis should avoid staying up late at night, because the liver rests and detoxifies during night hours. Staying up late might lead to liver function damage. For a healthy individual, staying up late might cause mild liver function abnormalities the following day. Over time, if a patient with viral hepatitis continues to stay up late, their liver function may repeatedly become abnormal. Even if their virus status is negative and they are just carriers, their long-term poor lifestyle habits could lead to the onset of hepatitis. Therefore, it is crucial for patients with viral hepatitis to avoid staying up late and drinking alcohol.

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Written by Xiong Hong Hai
Infectious Disease
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Is viral hepatitis contagious?

Viral hepatitis is contagious, with different types of viral hepatitis transmitted in different ways. The common types of viral hepatitis include Hepatitis A, B, C, D, and E. Hepatitis A and E are acute self-limiting liver diseases, which are contagious during the symptomatic phase and also during the incubation period, primarily transmitted through the fecal-oral route via the digestive tract. Therefore, for those infected with Hepatitis A or E, gastrointestinal isolation and symptomatic treatment are required. Hepatitis B and C are transmitted through blood, sexual contact, and from mother to child, with general contact not leading to infection.