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.

What is innate immunity?

Immunity can be defined as the ability of an organism to fight against diseases and infections. It is a complex biological system called the immune system in which the body recognizes the entry of any pathogen and works against it in order to eliminate it from the body. Innate immunity is the non-specific immunity. It comes into play immediately or within some hours of entry of any antigen or pathogen to the body. This type of immunity consists of physical, chemical and cellular response against the pathogen.