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Pathogen Anything that can cause sickness. Examples: bacteria, viruses, fungi and protists that cause disease
Pandemic A worldwide outbreak of an infectious disease. Examples include Bubonic Plague, 1918 Spanish Flu, and HIV/AIDS.
Epidemic An outbreak of an infectious disease in a particular community or region.
Vaccine A substance consisting of weakened, dead, or incomplete portions of viruses that produces an immune response in the body to that virus.
Agent The pathogen causes the disease.
Host The organism that is harmed by the disease.
Vector A disease vector is an organism that carries a disease from one host to another. Many vectors are insects. For example, malaria involves a mosquito vector, and Lyme disease involves a tick vector.
Transmission Refers to the method by which an infectious disease is passed from person to person. Examples include through the air, through bodily fluids, fecal-oral, etc.
Created by: cyclonescience