Harmful infectious organisms are identified as invaders due to their antigens (distinct molecules on their surface). Each antibody produced by your immune system binds to a specific antigen and then ...

Sjögren’s antibody testing is done using a blood sample. It checks antibody levels, including anti-SS-A (also called anti-Ro) and anti-SS-B (also called anti-La). Anti-SS-A and anti-SS-B are ...