VETERINARY PREVENTIVE MEDICINE | PUBLIC HEALTH |
PUBLIC HEALTH ADMIN/EDUCATION || MOST RECENT EXAM
2026|2027 ACTUAL COMPLETE REAL EXAM QUESTIONS AND CORRECT
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Which agency is primarily responsible for protecting the health of the
U.S. population through disease surveillance, outbreak investigation,
and public-health guidance?
A. USDA
B. CDC
C. FDA
D. EPA
Answer: B. CDC
Rationale: The Centers for Disease Control and Prevention (CDC) is the
principal U.S. federal public-health agency responsible for surveillance,
investigation, prevention, and control of infectious and other health
threats. USDA primarily addresses animal agriculture and zoonotic
issues involving animals, FDA regulates foods, drugs, biologics, and
medical devices, and EPA regulates environmental hazards and
pesticides.
What is the primary purpose of epidemiologic surveillance?
,A. To treat individual patients
B. To identify disease trends and detect changes in disease occurrence
C. To eliminate all pathogens from the environment
D. To replace laboratory testing
Answer: B. To identify disease trends and detect changes in disease
occurrence
Rationale: Surveillance is the ongoing systematic collection, analysis,
interpretation, and dissemination of health data. It allows public-health
professionals to detect outbreaks, monitor trends, identify emerging
threats, and evaluate interventions.
A disease that is naturally maintained in an animal population and can
be transmitted from animals to humans is best described as:
A. Zoonotic disease
B. Iatrogenic disease
C. Nosocomial disease
D. Congenital disease
Answer: A. Zoonotic disease
Rationale: A zoonosis is an infectious disease naturally transmissible
between vertebrate animals and humans. Veterinary preventive medicine
places particular emphasis on zoonosis because veterinarians frequently
serve as a bridge between animal health, human health, and
environmental health.
,Which epidemiologic measure describes the number of new cases of a
disease occurring in a population during a specified period?
A. Prevalence
B. Incidence
C. Mortality
D. Case-fatality ratio
Answer: B. Incidence
Rationale: Incidence measures new cases occurring over a defined
period among a population at risk. Prevalence measures existing cases at
a particular point or period, whereas mortality describes deaths and case-
fatality ratio describes the proportion of diagnosed cases that result in
death.
Which measure describes the proportion of a population that has a
disease at a specific point in time?
A. Point prevalence
B. Incidence density
C. Attack rate
D. Relative risk
Answer: A. Point prevalence
Rationale: Point prevalence represents all existing cases at a specific
point in time divided by the population at that time. It is useful for
describing the burden of chronic diseases and conditions in a population.
, During a foodborne outbreak, 80 people who ate a particular meal
became ill, while 320 people who ate the meal remained healthy. What
is the attack rate among those who ate the meal?
A. 10%
B. 20%
C. 25%
D. 40%
Answer: B. 20%
Rationale: The attack rate is calculated as the number of people who
become ill divided by the total number exposed, multiplied by 100. Here,
80 ÷ 400 × 100 = 20%.
Which epidemiologic study design is most appropriate for investigating
a rare disease?
A. Case-control study
B. Ecologic study
C. Cross-sectional study
D. Randomized controlled trial
Answer: A. Case-control study
Rationale: Case-control studies begin with people who have the disease
and compare their previous exposures with those of controls without the
disease. This makes the design particularly efficient for rare diseases or
diseases with long latency periods.