What is a hepatitus antigen? and what does it do if found surrounded by your blood?

What is a hepatitus antigen? and what does it do if found surrounded by your blood?
There are a number of different virus that can infect your liver, causing hepatitis (inflammation of the liver). These motivation type A, B, C, etc., hepatitis. If you are infected with one of these and a laboratory try-out is performed on a example of your blood, the test will detect the presence of these virus, which are called antigens. An antigen is any molecule that can elicit an immune response from the infected host. When the immune response take place, the host manufactures protein molecules telephone call antibodies which specifically attack the infecting virus. A laboratory test may also look for these antibodies.
If you are positive for the antigen, that resources you still have the virus surrounded by your body, whether you feel sick or not, and that finances you can still spread the disease to others. If you are positive for just the antibodies, that mode you've either have a past infection or you own been immunize against hepatitis.
The information given by majormomma, above, is absolutely correct and complete.