Hepatitis is a condition that damages the liver parenchyma, resulting in impaired liver function. There are many causes of hepatitis, of which half are caused by viruses. Viral hepatitis needs to be diagnosed and treated early to prevent the disease from progressing to liver failure, cirrhosis, and hepatocellular carcinoma.
The viruses that cause hepatitis include: hepatitis A virus (HAV), hepatitis B virus (HBV), hepatitis C virus (HCV), hepatitis D virus (HDV), hepatitis E virus (HEV), hepatitis virus hepatitis G (HGV). In which mainly HAV, HBV, HCV cause hepatitis A, B, C.
Hepatitis A virus: Hepatitis A virus was discovered in 1973, transmitted through food. Patients infected with HAV usually have a benign progression, complete recovery, without the status of a healthy person carrying the bacteria. disease has been vaccinated.
Hepatitis B virus: The incidence of hepatitis B is high. HBV is the only virus whose core acid is DNA. There is a vaccine to prevent hepatitis caused by the hepatitis B virus
Hepatitis C virus: Discovered since 1989. The virus has genetic diversity due to many genotypes, so the body’s immune response to the disease is poor. After recovering, the body is still at risk of being re-infected. There is still no vaccine to prevent the disease.