Teacher EPI Assessment Sample Questions Latest Version Updated
Question 1: Which of the following is a condition which may
occur during the incubation period?-Onset of clinical illness -Receipt of infection -Signs and symptoms of disease -Transmission of infection -Isolation of disease carrier through quarantine
CORRECT ANSWER: Transmission of infection
Question 2: Chicken pox is a highly communicable disease. It
may be transmitted by direct contact with a person infected with the varicella-zoster virus (VZV). The typical incubation time is between 10 to 20 days. A boy started school 2 weeks after showing symptoms of chicken pox including mild fever, skin rash, and fluid-filled blisters. One month after the boy returned to school, none of his classmates had been infected
by VZV. The main reason was:
-Herd immunity -All had been immunized prior to the school year -Contact was after infectious period -Subclinical infections were not yet detected -Disease was endemic in the class
CORRECT ANSWER: Contact was after infectious period
Question 3: The ability of a single person to remain free of
clinical illness following exposure to an infectious agent is
known as:
-Hygiene -Vaccination -Herd immunity -Immunity -Latency
CORRECT ANSWER: Immunity
Question 4: Which of the following is characteristic of a
single-exposure, common-vehicle outbreak?-Long latency period before many illnesses develop -There is an exponential increase in secondary cases following initial exposures -Cases include only those who have been exposed to sick persons -The epidemic curve has a normal distribution when plotted against the logarithm of time -Wide range in incubation times for sick individuals
CORRECT ANSWER: The epidemic curve has a normal
distribution when plotted against the logarithm of time
Question 5: A group of researchers are interested in
conducting a clinical trial to determine whether a new cholesterol-lowering agent was useful in preventing coronary heart disease (CHD). They identified 12,327 potential participants for the trial. At the initial clinical exam, 309 were discovered to have CHD. The remaining subjects entered the trial and were divided equally into the treatment and placebo
groups. Of those in the treatment group, 505 developed CHD after 5 years of follow-up while 477 developed CHD during the same period in the placebo group. What was the prevalence of CHD at the initial exam?
CORRECT ANSWER: The prevalence of CHD at the initial
exam was 309 cases of CHD divided by 12,327 participants.This equals a prevalence of 25.1 cases of CHD per 1,000 persons.
Question 6: A group of researchers are interested in
conducting a clinical trial to determine whether a new cholesterol-lowering agent was useful in preventing coronary heart disease (CHD). They identified 12,327 potential participants for the trial. At the initial clinical exam, 309 were discovered to have CHD. The remaining subjects entered the trial and were divided equally into the treatment and placebo groups. Of those in the treatment group, 505 developed CHD after 5 years of follow-up while 477 developed CHD during the same period in the placebo group. What was the incidence of CHD during the 5-year study?