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Health
| Term | Definition |
|---|---|
| a small living organism that is not visible to the naked eye | microorganism |
| a microorganism that is not capable of causing a disease | non pathogens |
| disease producing organisms | pathogens |
| One celled microorganisms some of which are beneficial and some of which cause disease | bacteria |
| microscopic one celled animals often found in decayed materials | protozoa |
| simple, plantlike organisms that live on dead organic matter | fungi |
| parasitic microorganisms that live on other living organisms | rickettsiae |
| the smallest microorganisms visible only using an electron microscope | viruses |
| organisms that require oxygen to live | aerobic |
| live and reproduce in the absence of oxygen | anaerobic |
| means the infection or disease originates within the body | endogenous |
| infection or disease originates outside the body | exogenous |
| one acquired by an individual in a health care facility such as a hospital or LTCf | nosocomial infection |
| an infection that occurs when the bodys immune system cannot defend itself from pathogens normally found in the enviroment | opportunistic infection |
| pathogen such as bacturium or virus that can cause a disease | causative agent |