Chapter 23 - Communicable Diseases

Single-celled microorganisms that can live almost anywhere

• Pathogen

• Infection

• toxin

• bacteria

a microorganism that causes disease

• infection

• virus

• toxin

• pathogen

a substance that kills cells or interferes with their function

• bacteria

• virus

• toxin

• pathogen

a condition that occurs when pathogens in the body multiply and damage body cells

• virus

• bacteria

• pathogen

• infection

a white blood cell that surrounds and destroys a pathogen

• lymphocyte

• phagocyte

• antibody

• vaccine

a specialized white blood cell that coordinates many of the functions of specific immunity

• phagocyte

• antibody

• lymphocyte

• vaccine

a protein that acts against a specific antigen

• antibody

• vaccine

• immunity

• lymphocyte

a preparation of dead or weakened pathogens that are introduced into the body to stimulate an immune response

• antibody

• phagocyte

• immunity

• vaccine

the state of being protected against a particular disease

• vaccine

• immunity

• antibody

• phagocyte

a global outbreak of an infectious disease

• pathogen

• infection

• pandemic

• epidemic