Term
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Definition
| a state of physical and psychological wellbeing and productivity including reproduction |
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Term
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Definition
| a finite abnormality of structure or function with an identifiable pathological or clinic-pathological basis and with a recognizable syndrome of clinical signs |
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Term
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Definition
| exposure, risk factor, independent predictor, or explanatory variable suspected of producing the outcome of interest |
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Term
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Definition
response or dependent variable
ie disease, health/productivity, immune status |
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Term
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Definition
| occurs only occasionally in a population |
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Term
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Definition
| disease is habitually present within a given geographic area at an EXPECTED level |
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Term
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Definition
| disease appears as a new case, in a given population, during a given period at a rate that substantially EXCESSED WHAT IS EXPECTED based on recent experience |
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Term
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Definition
| widespread over large area' world wide epidemic/crosses international borders |
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Term
| name the 3 components which dictate the impact of any infection at both an individual and population level |
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Definition
host, agent, and environment
- environment must allow host and agent to interact |
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Term
| name the 5 infectious agents |
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Definition
bacteria
parasites
viruses
fungi
prions (an infection protein particle) |
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Term
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Definition
| host is invaded by microorganisms, the organisms multiply, and there is a HOST IMMUNE SYSTEM RESPONSE |
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Term
| what must of occurred for patient to be considered diseased |
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Definition
| infection which caused clinical signs/symptoms |
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Term
sub clinically infected
- ability to spread |
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Definition
agent infects host, stimulates immune system, but doesn't cause overt disease.
although host does not appear sick, can still spread infectious agent |
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Term
colonized
- is host considered infected?
- ability to spread |
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Definition
| infectious agent establishes itself in host, but immune system NOT stimulated to respond. therefore, host not considered infected. does not appear sick, but can still spread infectious agent. |
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Term
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Definition
| diseases in nature which are SHARED by vertebrate animals and humans |
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Term
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Definition
| any insect or living carrier that TRANSPORTS INFECTIOUS AGENT from infected individual (or waste) to susceptible individual or its food or immediate surroundings |
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Term
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Definition
| any person, animal, arthropod, plant, soil, or substance which an infectious agent normally LIVES AND MULTIPLIES on which it DEPENDS ON FOR SURVIVAL and where it can reproduce itself so it can be transmitted to susceptible host. |
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Term
| Name 5 ways to transmit infectious diseases |
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Definition
contact (direct or indirect)
respiratory
vector
vertical (mother to child)
latrogenic (from hospital or medical procedure) |
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Term
| name the 4 stages a disease progresses through |
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Definition
susceptibility
pre-symptomatic disease
clinical disease
disability or recovery |
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Term
| chart of steps of disease progression showing latent period and incubation period |
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Definition
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