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Unit 1 Lesson 1: What are infectious diseases and why should we care?
Terms in this set (17)
illness with clinical symptoms, resulting from the presence of microbial agents
microbial agents that can cause disease
when a pathogen has broken through a host's defenses
disruptions of healthy conditions that negatively effects the structure or function of an organism and produces specific signs, or symptoms
physical or mental features that indicate the presence of a disease
A host that doesn't exhibit symptoms or illness despite being infected
The natural environment in which an infectious agent normally lives and multiplies
An organism that transmits an infectious agent from host to host or reservoir to host
Thin epithelial membranes that line the body's cavities (such as the gastrointestinal, respiratory, and urogenital tracts).
A viscous substance secreted by cells of the mucosal membrane that prevents microbes from attaching to the membrane but allows nutrients to pass through.
A microbe's ability to enter, survive, and multiply in the host
number of live organisms required to cause infection in a host
Community of microbes that live in the host without causing harm under normal conditions
Free of microbes
An organism that provides resources to a microbe
unicellular organisms whose genetic material is not enclosed within a membrane-bound nucleus
uni- or multi- cellular organisms whose genetic material is enclosed within a membrane-bound nucleus.
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