Epidemiology - ANSWER the study of the distribution and determinates of health
conditions or events in specified populations and the application of this study to the
control of health problems.
numerator the top part of a fraction used in calculating a rate or ratio - usually the
number of cases of disease or event being investigated in surveillance work.
Incidence rate A quantification of the frequency at
which an event occurs in a
population during a defined
period of time. The numerator is the total
number of new cases occurring in the
defined period, and the
denominator is the total population at risk.
E3
Germ Theory of Disease - ANSWER idea that infectious diseases are caused by
microorganisms by Pasteur and Koch
Benchmarking - ANSWER a process by which a company compares its performance
with that of high-performing organizations
NHSN 7 components - ANSWER 1. Biovigilance
2. Dialysis
3. Healthcare Personnel Safety
4. LTC Facility
5. Neonatal
, 6. Outpatient
7. Patient Safety
Reproducibility - ANSWER Measure the degree of agreement of an experiment or study
carried out by various people at various locations using various instruments.
syndromic surveillance-ANSWER Collecting and analysis of non-traditional data, such
as influenza-like illness rates and/or the number of emergency department patients for
early detection of an infectious disease disaster.
Rate - ANSWER a measure of the frequency with which an event, such as a new
diagnosis of illness or injury (morbid event), or death (mortal event), occurs in a defined
population, per unit of time. In health care surveillance it is often used loosely to refer to
proportions that are strictly not rates e.g. attack rate, incidence density rate.
Prevalence Rate - ANSWER the number of persons in a population who have a particular
disease or condition at a given time (point prevalence) or over a period (period
prevalence)
The Epidemic Curve is used to: - ANSWER 1. Determine whether the source of infection
is common or propagated (continuing) or both.
2. Establish incubation period.
3. Ascertain if outbreak is increasing or waning.
Virulence - ANSWER Ability to grow and multiply
Infectivity - ANSWER Ability to enter tissues
Pathogenicity - ANSWER Ability to cause disease
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