Aids to Health

Immunity

• Active Immunity: The immunity that results from the production of antibodies by the immune system in response to the presence of an antigen.
• Passive Immunity: The short-term immunity that results from the introduction of antibodies from another person or animal.

Health Aids

• Vaccination: The administration of a vaccine to help the immune system develop protection from a disease.
• Immunization: The process whereby a person is made immune or resistant to an infectious disease, typically by the administration of a vaccine.
• Antitoxin: An antibody that counteracts a toxin.
• Serum: The clear liquid that can be separated from clotted blood.
• Antiseptics: Substances that are applied to living tissue to reduce the possibility of infection, sepsis, or putrefaction.
• Disinfectants: Chemical agents that are used to destroy microorganisms on inanimate objects.
• Antibiotics: Substances that can kill or inhibit the growth of bacteria.

Local Defence System

The local defence system is the body's first line of defense against infection. It includes the skin, mucous membranes, and cilia.