Shared Flashcard Set

Details

ID Epi
n/a
43
Science
Graduate
10/20/2008

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Cards

Term
Endemic
Definition
Baseline rate
Term
outbreak
Definition
occurrence of infections assoc in time or location among specific group
Term
Epidemic
Definition
unusual number of cases
Term
Pandemic
Definition
worldwide epidemic
Term
Sporadic case
Definition
ill person who is not assoc with other a group
Term
cluster
Definition
more than one case grouped in some fashion
Term
Isolation
Definition
separation of infected to prevent acquisition by others during period of communicabiity
Term
Quarantine
Definition
restriction of persons exposed to infected source during incubation period of disease, to observe if disease develops
Term
Host
Definition
Who gets infected
Term
Reservoir
Definition
where (person, animal, environ) organism persists normally in nature
Term
Source
Definition
From whom an infection is directly acquired (person, animal, object)
Term
Mode of Spread
Definition
mechanism by which infectious agent is acquired
Term
Agent
Definition
microbacterial organism that can produce an interaction with the host
Term
Infection
Definition
production of interaction with host
Term
Pathogenicity
Definition
ability of an infectious agent to produce disease
Term
Disease
Definition
production of illness
Term
Parasites
Definition
Organisms that live on or within another living organism
Term
Saprophyte
Definition
an organism that is present but ordinarily will not cause disease
Term
Colonization
Definition
presence of an organism without infection
Term
Normal Flora
Definition
microorganisms routinely found at different sites of the body without causing infection
Term
Carrier State
Definition
harboring an organism that is potentially pathogenic
Term
Virulence
Definition
quantification of the degree of pathogenicity of an infectious agent as reflected by the severity of the disease produced
Term
Infectivity
Definition
ability of an agent to develop or multiply in a host
Term
Invasiveness
Definition
ability of organism to enter the victim
Term
Oppurtunisitic Pathogen
Definition
causes infection only when lessened patient defenses present oppurtunity to infect
Term
Endogenous Infection
Definition
caused by organisms that are part of the individual's own endogenous flora (ultimate oppurtunistic pathogens)
Term
Compromised Host
Definition
patient who, by nature of disease or therapy given for it, has impaired resistance to infection
Term
Prodrome
Definition
earliest stage of disease, where symptoms/signs may be vague, hard to recognize as characteristic of given pathogen
Term
Recovery/Convalesence
Definition
signs/symptoms diminish/disappear
Term
Clinical Period
Definition
Entire time when symptoms/signs are present
Term
Incubation Period
Definition
interval between exposure to inf. agent and the onset of the first symptoms/signs of an illness
Term
Communicable Period
Definition
time during which a person, animal, arthropod is able to transmit an organism to another
Term
Case Interval
Definition
interval between successive cases of infection
Term
Prepatent Period
Definition
interval from infection until the organism can be demonstrated
Term
Patent Period
Definition
interval in which the presence of the organism can be recognized
Term
Extensive Interval
Definition
time between the acute phase of the infection and subsequent progrssion of illness
Term
Microbial Aerosols
Definition
suspensions of particles in the air consisting partially or wholly of microorganisms
Term
Dust
Definition
particles of widely varying size, usually large that arise from reservoirs of infection from soil, floors, bedding, clothes... suspended for short amount of time... acq by inhalation/settling
Term
Droplets
Definition
Medium sized particles, direct acquistion from projection by another person's coughing, sneezing, siniging, talking... travel only short distances
Term
Droplet Nuclei
Definition
smallest airborne particle, dried droplets with agents in suspension... can remain suspended in air for days
Term
Alveoli
Definition
site of invasion for many pathogenic agents, organisms can only be removed by immunologic defenses
Term
Antigenic DRIFT
Definition
continous and is basis for annual epidemics & need to continually monitor influenza infections worldwide & change annual composition of vaccine
Term
Antigenic SHIFT
Definition
less frequent, caused past pandemics
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