There are two main ways to prevent hepatitis B: one is to block the transmission route of hepatitis B; The second is to prevent hepatitis B vaccine. Try to avoid unnecessary blood transfusion, irregular tattoos and eyebrows in your life, use regular sterilized medical supplies to avoid the possible spread of hepatitis B, and get hepatitis B vaccine as soon as possible. For newborns, infants and high-risk groups who can't avoid contact with hepatitis B patients, it is particularly important to vaccinate against hepatitis B. But for the following three groups of people, it is not suitable or necessary to vaccinate against hepatitis B..

1, people who have been infected with hepatitis B virus in the past.

Antibodies to hepatitis B virus have been produced in these patients.

2. Surface antigen positive and chronic hepatitis B patients.

Vaccines only have preventive effects. For patients with hepatitis B virus, vaccination can neither play a preventive role nor play a therapeutic role.

3. Suffering from acute or chronic serious diseases and allergic to any component in the vaccine.

For patients with acute or chronic serious diseases, the treatment of the disease is more critical. 1. Strengthen personal hygiene awareness

Strengthen health education and management. Prevent iatrogenic transmission, ensure one person, one needle, one tube and one disinfection, advocate disposable syringes, and thoroughly disinfect items contaminated by blood. Strengthen the management of blood products.

2. Eliminate the source of infection and cut off the route of transmission

Pay attention to the isolation of infected patients and the regular follow-up of virus carriers in recovery period. Personnel and nurses who have direct contact with imported food should have regular health check-ups every year. Patients in the acute phase will continue to be normal within half a year after recovery, and those who turn negative for HBsAg can return to their original jobs. Chronic patients should avoid direct contact with imported food and conservation work. The original work should be suspended before the suspected case is confirmed. For hospitalized cases, as long as the liver function is stable, they can be discharged. Strictly screen blood donors according to the requirements of national laws and regulations.

HBsAg carriers refer to those who are HBsAg positive, have no symptoms and signs of hepatitis, have normal liver function tests and have not changed after observation for half a year. Such people should not be regarded as hepatitis patients. In addition to not donating blood and engaging in direct contact with imported food and conservation work, you can work and study as usual, but follow-up should be strengthened. Carriers should pay attention to personal hygiene and industrial hygiene to prevent their saliva, blood and other secretions from polluting the surrounding environment. Tableware, shaving utensils, toothbrushes and toilet utensils used should be separated from healthy people.

3. Vaccinate to protect susceptible people.

Hepatitis B vaccine is efficient and safe, and can be injected into deltoid muscle according to the procedure of 0, 1 and 6 months. Blood-derived vaccine 10 ~ 30μ g, recombination vaccines/5 ~10 ~ 30μ g. The anti -HBs titer is positively correlated with the protective effect, and it is generally believed that only 10U/L has the protective effect. For hemodialysis patients and other patients with low immune function, the vaccination dose or times should be increased. Hepatitis B immunoglobulin (HBIg) is mainly used for newborns of HBeAg positive mothers, and can be used in combination with hepatitis B vaccine. Most HBIg produced in China is U/ml, and the dosage should be 0.075 ~ 0.2 ml/kg.