The antibodies are Y-shaped blood protein that binds to the specific antigens in a lock and key fashion to form an antigen-antibody complex and destroy the harmful antigen. These are synthesised by lymphocytes. These are also called immunoglobulin.

HIV or human immunodeficiency virus is a virus that attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases. It can lead to the disease AIDS or acquired immunodeficiency syndrome. It is spread by contact with certain bodily fluids of a person with HIV, most commonly during unprotected sex or sex without a condom or HIV medicine to prevent or treat HIV, or through sharing injection drug equipment.

The antibodies are Y-shaped blood protein that binds to the specific antigens in a lock and key fashion to form an antigen-antibody complex and destroy the harmful antigen. These are synthesised by lymphocytes. These are also called immunoglobulin.