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N125 vital signs smu | Exam Study Guide+Questionswith 100% Correct Solutions

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N125 vital signs smu | Exam Study Guide+Questionswith 100% Correct Solutions

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N125 vital signs smu | Exam Study
Guide+Questionswith 100% Correct Solutions
infection

invasion of the body by a pathogenic organism; results in disease

colonization

presence and growth of microorganisms within a host without tissue invasion or
damage

communicable disease

the infectious process transmitted from one person to another

symptomatic

clinical signs and symptoms are present

asymptomatic

clinical signs and symptoms are not present

chain of infection

infectious agent, reservoir, portal of exit, mode of transmission, portal of entry,
susceptible host

infectious agent or pathogen

fungi, bacteria, viruses or parasites

reservoir

where agents are found
animals

, humans
food and water sources
environment (lake, soil, woods)

portal of exit

where agents escape from
openings in skin
saliva and mucus
stool, urine, and blood
moisture and droplets

mode of transmission

how agents travel
superficial contact
sexual contact
aerosolized or droplet particulates
underprepared food

portal of entry

how agents enter the body
openings in skin
body cavity
mucous membrane (eyes mouth nose)
eating and drinking

susceptible host

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