Epidemiology Flashcards
The number of new cases in a given area and time is called…
Incidence
The total number of cases in a given area and time is called…
Prevalence
What is used when Koch’s postulates can’t be used (ex. HIV)?
Analytical epidemiology
What is a hospital associated infection (HAI) in which pathogens are acquired from the environment?
Exogenous
What is the hospital associated infection (HAI) that is acquired from oneself? (microbiota is opportunistic)
Endogenous
What is the hospital associated infection (HAI) acquired from a medical procedure?
Iatrogenic
C. diff is an example of what kind of infection?
Superinfection
Endemic:
Sporadic:
Epidemic:
Pandemic:
Endemic: occurs at constant rate in a given area
Sporadic: case pops up randomly
Epidemic: more than the normal number in a given area/time
Pandemic: epidemic on multiple continents
Describe the definition of epidemiology.
The study of who gets diseases, where, when, and how