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22 terms

Classification of Diseases & Infections

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endogenous
infection or disease that originates within the body
exogenous
infection or disease that originates outside the body
Nosocomial
infection that is acquired by individuals in a health care facility such as a hospital or long term care facility
infection preventionist
infection control professionals that run infection control programs, their job is to reduce the incidence of HAI's
opportunistic
infections that occur when the body's defenses are weak, they do not usually occur in individuals with an active immune system
chain of infection
factors that must exist for disease to occur and spread from one individual to another
infectious agent
pathogen, examples include bacteria, virus, fungus, rickettsiae, and protozoa
reservoir
area where infectious an infectious agent can live.
fomites
nonliving materials that house microorganisms
portal of exit
way for infectious agent to escape the reservoir
mode of transmission
way for an infectious agent to be transmitted to another reservoir or host where it can live
direct contact
spread person to person, spread by physical or sexual contact
indirect contact
is spread (pathogen) from a contaminated substance
portal of entry
way for the infectious agent to enter a new reservoir or host
susceptible host
individual who can contract the disease
asepsis
absence of disease-producing microorganisms
sterile
free from all organisms, both pathogenic and nonpathogenic, including spores and viruses
contaminated
organisms and pathogens are present on an object or area that may contain pathogens
aseptic techniques or "clean techniques"
directed toward maintaining cleanliness and eliminaten or preventing contamination
antiseptics
prevent or inhibit the growth of pathogenic organisms
disinfection
process that destroys or kills pathogenic organisms, not always effective against spores and viruses
sterilization
process that destroys all microorganisms