An outbreak of disease that occurs unexpectedly; large numbers over a geographic area

A strain of aureus that is resistant to other antibodies

A widespread epidemic that affects an enormous number of people and spreads between countries and across the world

A substance that targets and kills pathogenic bacteria

The process of hearing and then quickly cooling liquids to kill pathogens

The practice of covering your mouth and nose with a tissue while coughing or sneezing, or sneezing into your sleeve

A dead or nontoxic part of a pathogen that is injected into a person to train his or her immune system to eliminate the live pathogen

An animal that transmits a disease from one living thing to another

Single called organisms that grow and reproduce in and outside of the body and can be helpful or harmful to body function

The stage in which the signs and symptoms of a disease arise and are more prominent

The stage during which signs and symptoms of the disease fade and a person is no longer contagious

A scientific theory, which states that specific microorganisms cause specific diseases

The time between a pathogens entrance to the body and the first symptoms of a disease

A disease caused by microorganisms or pathogens that can be transmitted from one person, animal, or object to another

A fungal infection that usually attacks damaged tissues and weakened people

Disease that takes advantage of a body's weakened immune system

An organism that must live inside or another living organism to draw upon that organisms strength and energy for survival

A single felled organisms that are larger and more complex than bacteria, and which may cause disease

A pathogen that infects cells and uses their energy because it cannot reproduce or grow on its own.