- A protein produced by the body's immune system when it detects harmful substances, such as bacteria, viruses, and toxins.
- A substance that can react with a specific antigen to neutralize or destroy it.
Late 19th century: from anti- + body.
- The vaccine triggers the production of antibodies to protect against the disease.
- The patient's blood test showed a high level of antibodies to the virus.
- Antibodies are proteins that are produced by the body to fight off infections.
- The body's production of antibodies can take several weeks after exposure to an antigen.
- The patient's antibodies were able to neutralize the toxins produced by the bacteria.