Epidemiology Exam 1 Questions With
Correct Answers
Define Epidemiology - CORRECT ANSWER✔✔-Epidemiology is the study
| | | | | | | |
of patterns of health and disease in populations and the factors that
| | | | | | | | | | | |
influence these patterns.
| |
Epidemiology involves describing the patterns of disease in relation to
| | | | | | | | | |
what three factors? - CORRECT ANSWER✔✔-individuals, place, and time
| | | | | | | |
What are the six uses of epidemiology? - CORRECT ANSWER✔✔-
| | | | | | | | |
Investigation and control of a disease of unknown etiology
| | | | | | | | |
Identification of the etiology & risk factors of a disease
| | | | | | | | |
Determination of the origin of a disease of known etiology
| | | | | | | | |
To study the natural history and prognosis of a disease
| | | | | | | | |
Planning, monitoring & assessment of d'se control programs
| | | | | | |
Assessment of the magnitude and impact of a disease
| | | | | | | |
What are the four types of epidemiology? - CORRECT ANSWER✔✔-
| | | | | | | | |
Descriptive, Analytical, Experimental, and Theoretical
| | | |
,What questions does descriptive epidemiology answer? - CORRECT
| | | | | | | |
ANSWER✔✔-Who, what, where, and when. | | | |
What questions does analytical epidemiology answer? - CORRECT
| | | | | | | |
ANSWER✔✔-Why and how. | |
What is the purpose of experimental epidemiology? - CORRECT
| | | | | | | | |
ANSWER✔✔-Tests hypotheses formulated by descriptive and analytical
| | | | | | |
epidemiology about disease patterns. | | |
What are the seven sub-disciplines of epidemiology? - CORRECT
| | | | | | | | |
ANSWER✔✔-Clinical, computational, genetic, field, participatory, | | | | |
molecular, and spatial/geographical
| |
What is a determinant of health/disease? - CORRECT ANSWER✔✔-Any
| | | | | | | | |
factor that when changed, produces a change in disease frequency or
| | | | | | | | | | |
disease characteristics.
|
What are the three types of disease determinants? Give an example of
| | | | | | | | | | | |
each. - CORRECT ANSWER✔✔-Physical-natural disasters
| | | |
Biological-gender, sex, genetic predisposition | | |
Behavioral-hand washing |
,What differentiates primary and secondary determinants? - CORRECT
| | | | | | | |
ANSWER✔✔-Primary determinants have major effects on the individual | | | | | | |
or population (ie. the disease causing agent). Secondary determinants
| | | | | | | | | |
predispose or enable the disease to spread(ie. poor hygiene).
| | | | | | | |
What differentiates intrinsic and extrinsic determinants? - CORRECT
| | | | | | | |
ANSWER✔✔-Intrinsic determinants are internal to the host(ie. age, | | | | | | | |
breed, species, etc). Extrinsic determinants are external to the host(ie.
| | | | | | | | | |
trauma, poison, radiation, etc).
| | |
What is the epidemiologic triad? - CORRECT ANSWER✔✔-The
| | | | | | | |
combination of host, agent, and environmental determinants.
| | | | | |
How does host range of an agent act as a determinant of disease? -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-The wider an agent's host range is, the better
| | | | | | | | | |
the survival of the agent. A narrower host range makes an infectious
| | | | | | | | | | | |
agent easier to control.
| | |
Define infectivity. - CORRECT ANSWER✔✔-Infectivity is an agents ability
| | | | | | | | |
to enter, multiply and produce change in a host. The change in the host
| | | | | | | | | | | | | |
can be anything from disease to immune response with no symptoms.
| | | | | | | | | |
Differentiate between infection, contamination, and pollution. -
| | | | | | |
CORRECT ANSWER✔✔-Infection-entry and multiplication of agent in
| | | | | | |
the body. |
, Contamination-presence of an agent on exterior surfaces of a body or | | | | | | | | | | |
object.
Pollution-offensive matter in the environment that is not an infectious | | | | | | | | | |
agent.
Define infectious dose. - CORRECT ANSWER✔✔-The infectious dose is
| | | | | | | | |
the quantity of an agent necessary for transmission and infection from
| | | | | | | | | | |
one host to the next.
| | | |
Define viability. - CORRECT ANSWER✔✔-Ability of an agent to withstand
| | | | | | | | |
environmental stress.
| |
Differentiate between pathogenicity and virulence. - CORRECT
| | | | | | |
ANSWER✔✔-Pathogenicity is the ability of an agent to produce clinical | | | | | | | | | |
disease. Virulence is the degree of pathogenicity or severity of the
| | | | | | | | | | |
disease caused. |
Define immunogenicity. - CORRECT ANSWER✔✔-Ability of an agent to
| | | | | | | | |
stimulate an immune response in the host. High immunogenicity is
| | | | | | | | | |
associated with fewer reoccurrences of disease in an individual.
| | | | | | | |
Define antigenic stability. - CORRECT ANSWER✔✔-Antigenic stability is
| | | | | | | |
the likelyhood that the antigenic structure of an agent will undergo
| | | | | | | | | | |
mutation or change. Agents with high antigenic stability are easy to
| | | | | | | | | | |
make vaccines for that have long lasting immune protection.
| | | | | | | |
Correct Answers
Define Epidemiology - CORRECT ANSWER✔✔-Epidemiology is the study
| | | | | | | |
of patterns of health and disease in populations and the factors that
| | | | | | | | | | | |
influence these patterns.
| |
Epidemiology involves describing the patterns of disease in relation to
| | | | | | | | | |
what three factors? - CORRECT ANSWER✔✔-individuals, place, and time
| | | | | | | |
What are the six uses of epidemiology? - CORRECT ANSWER✔✔-
| | | | | | | | |
Investigation and control of a disease of unknown etiology
| | | | | | | | |
Identification of the etiology & risk factors of a disease
| | | | | | | | |
Determination of the origin of a disease of known etiology
| | | | | | | | |
To study the natural history and prognosis of a disease
| | | | | | | | |
Planning, monitoring & assessment of d'se control programs
| | | | | | |
Assessment of the magnitude and impact of a disease
| | | | | | | |
What are the four types of epidemiology? - CORRECT ANSWER✔✔-
| | | | | | | | |
Descriptive, Analytical, Experimental, and Theoretical
| | | |
,What questions does descriptive epidemiology answer? - CORRECT
| | | | | | | |
ANSWER✔✔-Who, what, where, and when. | | | |
What questions does analytical epidemiology answer? - CORRECT
| | | | | | | |
ANSWER✔✔-Why and how. | |
What is the purpose of experimental epidemiology? - CORRECT
| | | | | | | | |
ANSWER✔✔-Tests hypotheses formulated by descriptive and analytical
| | | | | | |
epidemiology about disease patterns. | | |
What are the seven sub-disciplines of epidemiology? - CORRECT
| | | | | | | | |
ANSWER✔✔-Clinical, computational, genetic, field, participatory, | | | | |
molecular, and spatial/geographical
| |
What is a determinant of health/disease? - CORRECT ANSWER✔✔-Any
| | | | | | | | |
factor that when changed, produces a change in disease frequency or
| | | | | | | | | | |
disease characteristics.
|
What are the three types of disease determinants? Give an example of
| | | | | | | | | | | |
each. - CORRECT ANSWER✔✔-Physical-natural disasters
| | | |
Biological-gender, sex, genetic predisposition | | |
Behavioral-hand washing |
,What differentiates primary and secondary determinants? - CORRECT
| | | | | | | |
ANSWER✔✔-Primary determinants have major effects on the individual | | | | | | |
or population (ie. the disease causing agent). Secondary determinants
| | | | | | | | | |
predispose or enable the disease to spread(ie. poor hygiene).
| | | | | | | |
What differentiates intrinsic and extrinsic determinants? - CORRECT
| | | | | | | |
ANSWER✔✔-Intrinsic determinants are internal to the host(ie. age, | | | | | | | |
breed, species, etc). Extrinsic determinants are external to the host(ie.
| | | | | | | | | |
trauma, poison, radiation, etc).
| | |
What is the epidemiologic triad? - CORRECT ANSWER✔✔-The
| | | | | | | |
combination of host, agent, and environmental determinants.
| | | | | |
How does host range of an agent act as a determinant of disease? -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-The wider an agent's host range is, the better
| | | | | | | | | |
the survival of the agent. A narrower host range makes an infectious
| | | | | | | | | | | |
agent easier to control.
| | |
Define infectivity. - CORRECT ANSWER✔✔-Infectivity is an agents ability
| | | | | | | | |
to enter, multiply and produce change in a host. The change in the host
| | | | | | | | | | | | | |
can be anything from disease to immune response with no symptoms.
| | | | | | | | | |
Differentiate between infection, contamination, and pollution. -
| | | | | | |
CORRECT ANSWER✔✔-Infection-entry and multiplication of agent in
| | | | | | |
the body. |
, Contamination-presence of an agent on exterior surfaces of a body or | | | | | | | | | | |
object.
Pollution-offensive matter in the environment that is not an infectious | | | | | | | | | |
agent.
Define infectious dose. - CORRECT ANSWER✔✔-The infectious dose is
| | | | | | | | |
the quantity of an agent necessary for transmission and infection from
| | | | | | | | | | |
one host to the next.
| | | |
Define viability. - CORRECT ANSWER✔✔-Ability of an agent to withstand
| | | | | | | | |
environmental stress.
| |
Differentiate between pathogenicity and virulence. - CORRECT
| | | | | | |
ANSWER✔✔-Pathogenicity is the ability of an agent to produce clinical | | | | | | | | | |
disease. Virulence is the degree of pathogenicity or severity of the
| | | | | | | | | | |
disease caused. |
Define immunogenicity. - CORRECT ANSWER✔✔-Ability of an agent to
| | | | | | | | |
stimulate an immune response in the host. High immunogenicity is
| | | | | | | | | |
associated with fewer reoccurrences of disease in an individual.
| | | | | | | |
Define antigenic stability. - CORRECT ANSWER✔✔-Antigenic stability is
| | | | | | | |
the likelyhood that the antigenic structure of an agent will undergo
| | | | | | | | | | |
mutation or change. Agents with high antigenic stability are easy to
| | | | | | | | | | |
make vaccines for that have long lasting immune protection.
| | | | | | | |
