What protein does the immune system produce to eliminate foreign bodies known as antigens?

When the immune system of the body recognizes foreign particles, known as antigens, it produces a protein called an antibody or immunoglobulin. Antibodies help to eliminate or remove antigens (foreign particles) from the body.

Antibodies are an essential part of the body's defense mechanism and are produced by the immune system in response to the presence of foreign substances, such as viruses, bacteria, or other pathogens. Antibodies help to neutralize or eliminate these foreign substances, preventing them from causing harm to the body.

It is important to note that different antibodies are produced for different antigens. This is why vaccines work by exposing the body to a weakened or dead form of the antigen, allowing the immune system to produce the corresponding antibodies and providing immunity against the disease.