HEPATITIS B SURFACE ANTIGEN

The Hepatitis B Surface Antigen (HBsAg) is a protein located on the surface of the Hepatitis B virus, serving as a vital marker for the presence of the virus in the bloodstream. Detection of HBsAg is a standard diagnostic tool for identifying active Hepatitis B infections. This antigen is instrumental in the virus’s ability to infect liver cells. Testing for HBsAg is crucial for early diagnosis, assessing infectiousness, and guiding appropriate medical interventions. If positive, further evaluation is typically recommended to determine the infection’s status and inform necessary healthcare decisions.