Disease - any change, other than an injury that disrupts the normal functions of the body
Pathogens - disease causing agent, such as a bacterium or fungus
Germ theory of disease - idea that infectious diseases are caused by microorganisms or germs
Koch's Postulates - series of guidelines used to identify the microorganisms that causes a specific disease
Vectors - animal that carries disease causing organisms from person to person
Antibiotics - specialized protein that helps destroy disease causing organisms
Inflammatory response - nonspecific defense reaction to tissue damage caused by injury or infection
Fever - elevated body temperature that occurs in response to infection
Interferons - one of a group of proteins that help cells resist viral infection
Immune Response - the body's specific defenses that attack a disease causing agent
Vaccination - injection of a weakened or mild form of a pathogen to produce immunity
Active Immunity - immunity produced by a vaccine so called because the body has the ability to mount an active immune response against the pathogen
Allergies - overreaction of the immune system that results when antigens bind to mast cells
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