GORDIS EPIDEMIOLOGY UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
●● Incidence density
Answer: the number of new cases of a disease divided by a person- time
denominator (which reflects the time an individual was at risk of
developing a disease). The numerator is people and the denominator is
person-time. It is NOT a proportion since the numerator and the
denominator have different units. Forexample,it is expressed as 10 new
cases per 1,000 person-years.
●● Epidemiology
Answer: The study of the distribution and determinants of health- related
states or events in specified populations and the application of this study
to control health problem
●● Primary prevention
Answer: Preventing the initial development of disease
●● Secondary prevention
Answer: Early detection of existing disease to reduce severe
complications
,●● Tertiary prevention
Answer: reducing the impact of the disease
●● Direct disease transmission
Answer: Person-to-Person contact
●● Indirect disease transmission
Answer: Common vehicle: (1) single exposure. (2) Multiple exposures.
(3) Continuous exposure. (4) Vector
●● Clinical disease
Answer: characterized by signs and symptoms.
●● Nonclinical (inapparent) Disease
Answer: may include the following: preclincial disease, subclinical
disease, presistent chronic disease and latent disease
●● Carrier status
Answer: refers to an individual who harbors an organism but is not
infected, as evidenced by antibody response or clinical manifestations
●● epidemic
Answer: A widespread outbreak of an infectious disease.
, ●● Endemic
Answer: Commonly found in a particular region or among a particular
people
●● Pandemic
Answer: A worldwide epidemic.
●● Common-vehicle exposure
Answer: all the cases that developed were in persons exposed to the a
single exposure such as a food in question
●● Contamination types
Answer: Single, multiple, periodic, continuous
●● Herd immunity
Answer: Resistance of a population to spread of an infectious organism
due to the immunity of a high proportion of the population.
●● Incubation period
Answer: Interval between infection and development of symptoms
●● Primary case
ACTUAL QUESTIONS AND CORRECT
ANSWERS
●● Incidence density
Answer: the number of new cases of a disease divided by a person- time
denominator (which reflects the time an individual was at risk of
developing a disease). The numerator is people and the denominator is
person-time. It is NOT a proportion since the numerator and the
denominator have different units. Forexample,it is expressed as 10 new
cases per 1,000 person-years.
●● Epidemiology
Answer: The study of the distribution and determinants of health- related
states or events in specified populations and the application of this study
to control health problem
●● Primary prevention
Answer: Preventing the initial development of disease
●● Secondary prevention
Answer: Early detection of existing disease to reduce severe
complications
,●● Tertiary prevention
Answer: reducing the impact of the disease
●● Direct disease transmission
Answer: Person-to-Person contact
●● Indirect disease transmission
Answer: Common vehicle: (1) single exposure. (2) Multiple exposures.
(3) Continuous exposure. (4) Vector
●● Clinical disease
Answer: characterized by signs and symptoms.
●● Nonclinical (inapparent) Disease
Answer: may include the following: preclincial disease, subclinical
disease, presistent chronic disease and latent disease
●● Carrier status
Answer: refers to an individual who harbors an organism but is not
infected, as evidenced by antibody response or clinical manifestations
●● epidemic
Answer: A widespread outbreak of an infectious disease.
, ●● Endemic
Answer: Commonly found in a particular region or among a particular
people
●● Pandemic
Answer: A worldwide epidemic.
●● Common-vehicle exposure
Answer: all the cases that developed were in persons exposed to the a
single exposure such as a food in question
●● Contamination types
Answer: Single, multiple, periodic, continuous
●● Herd immunity
Answer: Resistance of a population to spread of an infectious organism
due to the immunity of a high proportion of the population.
●● Incubation period
Answer: Interval between infection and development of symptoms
●● Primary case
