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TRENT UNIVERSITY: NURS 2550 WITH QUESTIONS AND 100% SURE ANSWERS
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TRENT UNIVERSITY: NURS 2550 WITH QUESTIONS AND 100% SURE ANSWERS
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JACKLINETRENT UNIVERSITY: NURS 2550 WITH QUESTIONS AND 100% SURE ANSWERS
Terms in this set (404)
study of how often diseases occur in different groups of people and why
Epidemiology is the study of study of infectious disease and spread within specific populations
public health issues
the distribution (who, when and where), patterns and determinants of health and disease
Epidemiology is the analysis of
conditions in defined populations
Incidence Number of new cases over a certain period of time
Prevalence number of cases within population, regardless of when they first appeared
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,Morbidity cases of illness in given time
mortality total number of deaths in a population
number of deaths among cases
Case fatality rate
eg. H5N1 Case Fatality Rate= 60%
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, first person infected
Index case
epidemiology= tracking and analysis
John Snow= first epidemiologist
the constant presence of an illness in a population
Endemic
local illness- malaria in Honduras
increase in the number of cases in geographic area
Epidemic
outbreak in an institution
more than one continent or worldwide
Pandemic
Ex. Sars
Communicable diseases living connection
non-communicable disease soil, water, food
Factors that affect infections disease in personal habits, environment , work, behaviours
populations ex. social determinants of health
Microbe and environment proximity allows transfer of genetic material
stronger predictors of health than behaviours such diet, physical activity, smoking and alcohol
use
social determinants of health
ex. gender, race, income
1. infectious agent
2. reservoir
3. portal of exit
Chain of infections
4. mode of transmission
5. portal of entry
6. Susceptible host
Pathogenicity ability of a pathogen to cause disease
allow establishment in and damage to host
Virulence Factors
ex. toxins
Infectious Dose minimum number of microbes to cause disease
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