Hepatitis B Package near me in Kolkata

The Hepatitis B Surface Antigen (HBsAg) test detects the presence of a specific protein on the surface of the Hepatitis B virus (HBV) in the bloodstream. This protein, HBsAg, serves as a crucial marker for identifying HBV infection. This is a screening test and the diagnosis of any reactive HBsAg result relies on additional supplemental tests like anti-HBs antibody and total anti-HBc antibodies. Confirmation can be done using nucleic acid tests like HBV DNA by PCR. The Hepatitis B Surface Antigen (HBsAg) test is essential for identifying individuals who require medical intervention, such as antiviral therapy, and for implementing measures to prevent the spread of Hepatitis B virus to others. 

The Hepatitis B s (Surface) Antibody test measures the presence of antibodies produced by the immune system against hepatitis B virus (HBV) or the hepatitis B vaccine (immunity) in vaccinated individuals. There are two types of antibodies produced in response to the hepatitis B virus: Immunoglobulin M (IgM) and Immunoglobulin G (IgG). IgM antibodies mount the first attack against HBV but eventually fades away. IgG antibodies provide long-lasting immune protection against HBV. The immunity can last for many years, but it gradually decreases over time.

A positive test result indicates immunity to hepatitis B, either from past infection and subsequent recovery or from vaccination. The Hepatitis B s (Surface) Antibody test is important to determine whether you have protective immunity against HBV and if you are at risk of contracting the virus in the future. It can also help guide decisions on whether you need the hepatitis B vaccine or a booster shot to maintain immunity.