Hepatitis B Face Antigen (HBsAg) is a blood examination ordered to determine if somebody is tainted by means of the hepatitis B virus. But along with specific antibodies, it means the person has a hepatitis B infection If it's found.

Hepatitis B Face Antigen (HBsAg) is a blood examination ordered to determine if somebody is tainted by means of the hepatitis B virus. But along with specific antibodies, it means the person has a hepatitis B infection If it's found.