Hepatitis B virus carriers, there are two situations:
One case refers to hepatitis B, big three yang, normal liver function test, multiple tests, usually at least three times a year before normal. The DNA value of hepatitis B virus is very high. No active liver lesions were found by B-ultrasound. Liver biopsy showed no inflammation or mild inflammation in the liver.
At this time, hepatitis B virus carriers are highly contagious, because the liver inflammation is mild and the antiviral treatment effect is not good, so hepatitis B virus carriers are not given antiviral treatment at this time, and their liver function needs to be checked every three months. Once the liver function is abnormal, it will be treated.
In another case, HBV DNA can not be detected in the body, and the liver function is normal, which is caused by spontaneous immune clearance of patients. This condition is also called chronic inactive HBV carrier. This hepatitis B virus carrier is not contagious, so it cannot be used for blood donation and cannot be used as a blood donor. It is necessary to check HBV DNA, AFP, liver fibrosis index, liver function and liver color Doppler ultrasound every six months.
Extended data
prevent
1, control the source of infection
Patients with acute hepatitis B should be treated in isolation. Chronic hepatitis B patients and hepatitis B virus carriers are not allowed to donate blood. Infected people can not engage in catering industry, child care institutions and other work.
2, cut off the route of transmission
Develop good personal hygiene habits and wash your hands with soap and tap water after contact with patients; Strictly implement the disinfection system; It is suggested to use disposable injection instruments and blood products to detect HBsAg to prevent iatrogenic transmission.
3. Protecting vulnerable groups
Vaccination with hepatitis B vaccine is the most effective way to prevent HBV infection. Susceptible people can be vaccinated, mainly newborns. At the same time, people who are in close contact with HBV-infected people, medical workers, homosexuals and other high-risk groups, as well as those who are engaged in kindergarten education, food processing, catering services and other occupations, should be vaccinated with hepatitis B vaccine and regularly check their antibodies.
Baidu Encyclopedia-Chronic Hepatitis B