What is Anti RLS? Anti RLS High and Low

Hepatitis B infection is a viral disease that has serious effects on the liver. After a person is infected with the virus, symptoms of the disease may not be seen for a long time. In this process, liver damage becomes severe and the risk of developing chronic disease increases. Therefore, it is important to evaluate the test results for hepatitis B correctly, to repeat the tests of people in the risk group at regular intervals, and to recognize positive antibodies and antigens in cases of immunity and infection. To determine whether a person has been in contact with the hepatitis B virus, to evaluate the immune status against the disease, or to confirm the disease picture, three different test results called hepatitis B panel must be taken into consideration.

What is Anti HBs?

Anti HBs molecule, known as hepatitis B surface antibody, is one of the important values ​​in the hepatitis B panel that shows whether the person is immune to the virus. After the body comes into contact with the virus, the immune system initiates the production of antibodies specific to that virus and thus tries to recognize the virus and control the infection. Therefore, the fact that the immune system has developed antibodies against a virus indicates that the body has come into contact with that virus either naturally or through vaccination.

The first molecule detected in the blood after a person’s contact with the virus is HB antigen, and it becomes positive approximately 3 to 9 weeks after contact with the virus. This value, which indicates active hepatitis B infection in the blood, can be detected by hepatitis B panel tests approximately 5 weeks before infection-related symptoms appear. HBsAg antigen, which reaches the highest level in case of acute infection, is then controlled by antiviral treatment and similar interventions and becomes negative within 4-6 months. The antibody called anti-HBs, which is used to evaluate the immune status, is measured as positive after a while after the infection ends and the HBsAg antigen becomes negative.

What Does Anti HBs Positive Mean?

Hepatitis B surface antibody, called anti-HBs, is first synthesized after the person’s immune system comes into contact with the virus, either directly or through vaccination, and is considered an indicator that immune cells have met this virus. After a while, after the immune cells initiate the synthesis of antibodies against the hepatitis B virus, the anti-HBs value in the blood increases and thus the body develops immunity by coding the virus to recognize it later. If the person comes into contact with the virus again in the future, these antibodies quickly create an immune response and the virus is quickly removed from the body without causing infection. Therefore, high anti-HBs level is an important value that shows that the person has protection against hepatitis B virus.

In our country, as in the rest of the world, the hepatitis B vaccine is included in the national vaccination calendar implemented by the Ministry of Health and is administered in a total of 3 doses, the first dose being given immediately after birth. Therefore, it is expected that all individuals who are fully vaccinated according to the national vaccination calendar will be immune to the hepatitis B virus and, accordingly, the anti-HBs value will be high in the hepatitis B panel tests. It should be known that if the person only has positive HBs surface antibody, the person is not infected with the virus and there is no risk of transmitting the virus to others.

What Does Anti HBs Negative Mean?

The anti-HBs antibody synthesized after a person’s contact with the hepatitis B virus indicates that the production of protective antibodies against the disease has been successfully achieved and that the person’s immune system has already recognized the virus. If Anti HBs is negative, it is possible to say that the immune system has never come into contact with the hepatitis B virus, therefore the person is unvaccinated

. Hepatitis B vaccine is included in the national vaccination calendar implemented by the Ministry of Health in our country, and a total of 3 doses of hepatitis vaccine are administered in the first 6 months of life, with the first dose being administered immediately after birth. It becomes anti-HBs positive approximately 4 to 8 weeks after vaccination. Therefore, in case of low anti-HBs, the first thing that should come to mind is that the person’s infancy vaccines were not administered correctly. If anti-HBs is negative, it can be said that the person does not have any protection against the hepatitis B virus, and in this case, it should be noted that serious liver infection may develop in contact with the virus.

How Much Should Anti HBs Be?

Anti-HBs antibody, which is used to evaluate whether a person is immune to the hepatitis B virus, becomes positive after a natural infection or vaccination. If the person has had the disease directly and has become immune in this way, the anti-HBs value begins to increase after a while after the hepatitis B surface antigen (HBsAg) turns negative. For immunity acquired through vaccination, this period varies between 4 and 8 weeks, and anti-HBs control is recommended for people after vaccination. Proper formation of the antibody response is extremely important for the person to be fully protected against the disease. Reaching an antibody level of > 10 Iu/L after vaccination; It is enough to protect the person from infection. In line with the statement made by the World Health Organization, it is possible to say that individuals who have been fully vaccinated during childhood are sufficient to protect the person from infection, even if the antibody response disappears over the years. However, people with any disease related to the immune system may require a booster dose.

Anti HBs Reference Range

Anti-HBs antibody, which is evaluated to determine the person’s immune status against hepatitis B infection, is usually reported in two ways: “positive” or “negative”. A positive antibody indicates that the person’s immune system recognizes the hepatitis B virus directly or through vaccination. If it is negative, it can be said that the body has not come into contact with this virus in any way and the person is unprotected against diseases that may occur with the virus.

Individuals vaccinated in line with the national vaccination schedule develop an immune response against the hepatitis B virus in the first 6 months of life. For these people, a normal anti-Hbs value of “positive” is sufficient. However, in some cases, detailed evaluation of the antibody level after vaccination may be required. Under normal circumstances, the anti-HBs value is expected to turn positive approximately 4-8 weeks after vaccination and to be above 10 Iu/L in subsequent controls.

Hepatitis B virus, which seriously affects liver health, is one of the important viruses that causes an extremely complex infection and requires close monitoring. Vaccinated people are expected to have full immunity against the disease, but some diseases that affect the immune system can make the situation more complicated than it is. Therefore, it is important that all screenings for this virus are carried out completely, that all individuals, even if vaccinated, are informed about the ways of transmission of the disease, and that the susceptibility to viral infections increases in case of any disease that affects the immune system. You can also include liver function tests in your routine health checks and monitor hepatitis B-related disease and immunity values ​​at regular intervals.