What Factors Lead to the Production of Antibodies?

When the hepatitis B virus invades the human body, it stimulates the human immune system to produce an immune response. The effector B cells (plasma cells) differentiated by the B lymphocytes in the human immune system secrete a specific immunoglobulin G, which is a surface antibody. It can specifically bind to surface antigens, and then together with other immune functions in the body, it can remove the virus and protect the human body from being infected with hepatitis B virus. Therefore, surface antibodies are called protective antibodies. The presence of surface antibodies proves that a person has developed immunity. Humans can produce hepatitis B surface antibodies after natural infection or after being injected with hepatitis B vaccine; but not all people can produce surface antibodies.

Hepatitis B surface antibody positive

when

1. First, check carefully and evaluate the infectivity and outcome. Those who are positive for hepatitis B surface antigen for the first time should also check serum alanine aminotransferase, hepatitis B core antibody immunoglobulin M, hepatitis B core antibody, hepatitis B E antigen , Hepatitis B E antibodies, and Hepatitis B surface antibodies. Can detect HBV if available

Hepatitis B surface antibody positive ^[2]

The main effects of positive hepatitis B surface antibodies on life are the following:

1. Hepatitis B surface antibody-positive blood donation: Hepatitis B two-and-a-half pairs of healthy people can donate blood. According to the relevant national standards for blood donor health checkups, blood tests for blood donors require that hepatitis B virus surface antigen (HBsAg) be negative, that is, the first two negative pairs of hepatitis B are qualified. Therefore, people like you who have hepatitis B two and a half are negative and the other healthy people who pass the test can donate blood. In addition, healthy people do not need to postpone blood donation after receiving vaccinations against hepatitis B and hepatitis A.

Second, whether the hepatitis B surface antibody is positive or not: The surface antibody (positive item 2) indicates that you have protective antibodies in your body, which are usually produced after injection of hepatitis B vaccine or previous exposure to hepatitis B virus. This is a good phenomenon You belong to the normal population who are not infected with hepatitis B virus, and are not infectious, so don't worry.