EPID Study Guide Quiz and All Correct
Answers 2026.
A disease that’s endemic to the Western Hemisphere is
a. West Nile virus because we expect cases each year
b. influenza because we are seeming more cases than expected
c. Zika, because it was a widespread outbreak across the region
d. Ebola, because cases occurred locally in Texas - Answer a.West Nile virus because we
expect cases each year
The focus on examining causal hypothesis regarding the association between exposures and a
health condition is quintessential to - Answer analytic epi
Histograms are useful for portraying categorical data.
a. T
b. F - Answer b. F
A researcher wants to show differences in mean virus titer between two groups receiving
different doses of vaccine at 7 and 14 days post inoculation (dpi). Which of the following graphs
is best to visualize this? - Answer Box-and-whiskers plot for each group/time combination
Robert Koch (1843-1910) is famous for his work in support of the germ theory by isolating the
causative agents for both anthrax and tuberculosis. Which of the following is NOT one of Koch's
postulates?
Question options:
The organism must be able to be isolated and grown in pure culture.
The pure culture must, when inoculated into a susceptible animal, reproduce the disease.
, The association between the organism and the disease must be consistently observed across
populations, places, circumstances and times.
The organism must be able to be observed in, and recovered from the experimental animal. -
Answer The association between the organism and the disease must be consistently
observed across populations, places, circumstances and times.
A new treatment for a chronic disease affecting millions of Americans is developed that hastens
(speeds) the recovery from disease. Which of the following will occur?
a. Incidence will remain the same, but prevalence will increase
b. Incidence will remain the same, but prevalence will decrease
c. incidence will increase
d. incidence decrease - Answer b. Incidence will remain the same, but prevalence will
decrease
A new technique for screening of autism has led to earlier detection of the disorder among
white boys. As a result:
a. reported prevalence will increase
b. reported prevalence will decrease
c. incidence will increase
d. incidence decrease - Answer a. reported prevalence will increase
About how long was it between the discovery of penicillin and the widespread use of it? -
Answer 15 years
Answers 2026.
A disease that’s endemic to the Western Hemisphere is
a. West Nile virus because we expect cases each year
b. influenza because we are seeming more cases than expected
c. Zika, because it was a widespread outbreak across the region
d. Ebola, because cases occurred locally in Texas - Answer a.West Nile virus because we
expect cases each year
The focus on examining causal hypothesis regarding the association between exposures and a
health condition is quintessential to - Answer analytic epi
Histograms are useful for portraying categorical data.
a. T
b. F - Answer b. F
A researcher wants to show differences in mean virus titer between two groups receiving
different doses of vaccine at 7 and 14 days post inoculation (dpi). Which of the following graphs
is best to visualize this? - Answer Box-and-whiskers plot for each group/time combination
Robert Koch (1843-1910) is famous for his work in support of the germ theory by isolating the
causative agents for both anthrax and tuberculosis. Which of the following is NOT one of Koch's
postulates?
Question options:
The organism must be able to be isolated and grown in pure culture.
The pure culture must, when inoculated into a susceptible animal, reproduce the disease.
, The association between the organism and the disease must be consistently observed across
populations, places, circumstances and times.
The organism must be able to be observed in, and recovered from the experimental animal. -
Answer The association between the organism and the disease must be consistently
observed across populations, places, circumstances and times.
A new treatment for a chronic disease affecting millions of Americans is developed that hastens
(speeds) the recovery from disease. Which of the following will occur?
a. Incidence will remain the same, but prevalence will increase
b. Incidence will remain the same, but prevalence will decrease
c. incidence will increase
d. incidence decrease - Answer b. Incidence will remain the same, but prevalence will
decrease
A new technique for screening of autism has led to earlier detection of the disorder among
white boys. As a result:
a. reported prevalence will increase
b. reported prevalence will decrease
c. incidence will increase
d. incidence decrease - Answer a. reported prevalence will increase
About how long was it between the discovery of penicillin and the widespread use of it? -
Answer 15 years
