BIO SCI E109 Lecture Notes - Lecture 1: Helminths, Natural Reservoir, Human Microbiota
1 Oct 2016
School
Department
Course
Professor
Document Summary
Course: m143: parasites are eukaryotic organisms within, protozoan (unicellular) group, helminth(multicellular worm ) group. [all infectious disease pathogens can be considered parasitic, only protozoan&worms parasites are termed parasites in the context of this class: some definitions: This can have a behavioral and/or genetic origin (cardiac disease, alcoholism) or be due to an extraneous organism (infectious disease). [2] pathology: a deviation from normal health to an abnormal diseased state. [3] pathogens: any virus, bacteria, fungi, protozoan or worm that infects a human to cause disease (pathology). Primary pathogens cause disease in any healthy host. Opportunistic pathogens normally free-living or normal flora; are pathogens in certain conditions. (like immunodeficiency ) [4] virulence: the degree of pathogenicity of an infectious organism (i. e. its ability to cause disease (pathology). [5] host: the infected individual who harbors the pathogen. : a direct parasite life cycle where all the stages are supported by a single host (example: giardia ).
