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Microbiology and Infection Prevention

microbiology the study of micro organisms
contamination the state of being soiled or infected by contact with infectious organisms
micron a unit of measure equal to 1/1000 of a millimeter
protoplasm a thick mucous like substance that is colorless and translucent that forms the biochemical basis of life found within the cell nucleus
nucleus the functional center of a cell that governs activity and heredity
phagocytosis the process by which some cells can ingest bacteria or foreign objects
DNA deoxyribonucleic acid. the protein found in the chromosomes of a cell nucleus which is the basis of heredity
spore micro organism capable of forming a thick wall around itself to survive adverse conditions
chlorophyll a molecule in plants that absorbs sunlight and converts it to energy
aerobic capable of growing in the presence of oxygen, requiring oxygen
anaerobic capable of growing in the absence of oxygen, not requiring oxygen
psychrophiles cold loving bacteria which thrive at temps of 59°–68° f
mesophiles bacteria that grow best at moderate temperatures 68°–113° f,are often pathogenic to humans because they grow best at body temperature
thermophiles bacteria which grow best at 122°–158° f
vegetative vegetative stage state of active growth of micro organisms
angstrom a unit of measure of light
binary fission The typical method of bacterial reproduction in which one cell divides into two
MRSA methicillin resistant staphylococcus aureus
VRE vancomycin resistant enterococcus
viruses minute infectious agent that only grows in living tissues or cells
host an animal plant or human that supports the growth of micro organisms
protozoan a one celled animal like micro organism of the sub–kingdom protazoa
amoeboid movement the crawling movement of cells
causative agent the micro organism that causes an infectious disease
reservoir of agent the place where an infectious agent can survive
carriers an individual who harbors and disseminates pathogens without having symptoms
portal of exit the path by which an infectious agent leaves the reservoir
mode of transmission the method of transfer of an infectious agent from reservoir to a susceptible host
portal of entry the path used by an infectious agent to enter susceptible host
susceptible host a person or animal that lacks the ability to resist infection
infection invasion of human body tissue by micro organisms
hand hygiene the act of washing ones hands with soap and water or an alcohol scrub
PPE personal protective equipment
standard precautions using appropriate barriers to prevent transmission of infectious organisms. assumes every patient blood and body fluids is infectious
fomite an inanimate object that can transmit micro organisms
asepsis the absence of micro organisms that cause disease
aseptic technique activity or procedure that prevents infection or breaks the chain of infection
medical asepsis procedures performed to reduce the number of micro organisms to minimize their spread
surgical asepsis procedures performed to reduce the number of all micro organisms and / or to prevent the introduction of micro organism into an area
Gram–stain and Ziehl–Neilson stain The two most common processes designed to classify bacteria by color changes.
Created by: mrjennings