How does your body protect itself from antigens?

The body has several mechanisms in place to protect itself from antigens:

Physical barriers: The skin and mucous membranes form the first line of defense against antigens. They physically block the entry of pathogens into the body.

Phagocytes: These are cells that engulf and destroy foreign invaders, including antigens.

Antibodies: These are proteins produced by the immune system in response to specific antigens. Antibodies bind to the antigens and neutralize them, preventing them from causing harm.

Complement system: This is a group of proteins that work together to destroy foreign cells, including those that have been infected with viruses.

Inflammation: This is a natural response to injury or infection, and it helps to protect the body by isolating the affected area and preventing the spread of infection.

Fever: A rise in body temperature can help to kill pathogens and speed up the healing process.

Interferons: These are proteins that are produced by the body in response to viral infection. They interfere with the replication of viruses, preventing them from spreading to other cells.

Immune memory: After an infection, the body retains a memory of the specific antigen. This allows it to mount a faster and more effective response if the same antigen is encountered again in the future.