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HS~1 Infection Contr

microrganism small, living organism that cannot be seen with the naked eye
microbe AKA microorganism
pathogen microbe that causes disease
nonpathogen microbe that is considered beneficial and usually does not cause disease
bacteria simple one-celled organisms that multiply rapidly
cocci round, spherical shaped bacteria
bacilli rod-shaped bacteria
streptococci spherical shaped bacteria that appear in chains
staphylococci spherical-shaped bacteria that appear in clusters;AKA pus producers
antibiotics drugs that are used to treat bacterial illnesses
protozoa one-celled animal like microbes that live in contaminated water and decayed material
fungi plant-like organisms that live on dead organic matter; AKA yeasts & molds
rickettsiae parasitic organisms transmitted by fleas, ticks, lice, mites
viruses smallest microbes; spread through blood and body fluids; hard to kill; resistant to antibiotics
Hepatitis B serious liver infection; caused by virus; leads to liver destruction; vaccine is availble
Hepatitis C serious liver infection; transmitted by blood and body fluids; no vaccine; increases chances of liver cancer
AIDS acquired immune deficiency syndrome; bloodborn; caused by a virus; no cure; patient can't fight off infections and cancers
aerobic organism can't live without oxygen
anaerobic organism lives and reproduces in the absence of oxygen
nosocomial infection infection that is acquired in a health care facility; transmitted by the health care worker;
opportunistic infection occurs when the body's immune system is weakened
endogenous disease disease that originates within the body; Ex: diabetes, cancer
exogenous disease disease originates outside the body Ex: infections, trauma,
antisepsis prevent or inhibit the growth of pathogenic organisms; may not affect spores & viruses
disinfection destroys or kills organisms; not always effective against all spores/viruses
sterilization kills all pathogens, spores, & viruses; uses heat and steam under pressure
autoclave instrument used to sterilize instruments and equipment; uses steam under pressure to kill all organisms, spores, viruses
hand washing most important method used to prevent the spread of infection
chain of infection conditions required for the spread of infection
causative agent a pathogen that can cause disease
reservoir area where a causative agent can live; ideal environment for the pathogen
fomite any object that is contaminated with pathogens; Ex: cell phones, door knobs, desk tops, pencils
portal of exit The way an organism escapes from the reservoir; Ex: blood, body fluids
mode of transmission The way a causative agent can be transmitted to another reservoir or host; Ex: sneezes, hands, sexual contact, insects
portal of entry THe way a causative agent enters a new reservoir or host; Ex: break in the skin, respiratory tract
susceptible host a person likely to get an infection or disease usually because defenses are weakened
contaminated organisms are present
asepsis absence of disease causing pathogens
sterie free from all organisms, spores and viruses; free of all pathogens and nonpathogens
Created by: ddooley