Epidemiology Final Exam| 60 questions| with complete solutions

A disease transmitted through a mosquito bite is an example of ______ transmission. Active Passive Direct Indirect correct answer: Indirect In an outbreak investigation, which of the following measures might be calculated? Attack rate Case-fatality rate Relative risk All of the above correct answer: All of the above Concerning a host during an epidemic, which is NOT true? The infectious agent grows inside the host The host need not be human The host is always infected with agent The host always becomes sick from the agent correct answer: The host always becomes sick from the agent One hundred fans of the Bearkat Rugby team attend a barbecue. They ate barbecue and potato salad. The next day 35 people become ill with nausea, vomiting, and diarrhea. Stool cultures indicate that 67 people were actually infected with the virus. Three patients are admitted to the hospital. What is the virulence rate for this outbreak? 2% 4.5% 8.6% 28% correct answer: 8.6% Which group is NOT a high priority group for communicating during an epidemic? Elected leaders and decision makers Health professionals Print and broadcast media All are high priority groups correct answer: All are high priority groups One hundred fans of the Bearkat Rugby team attend a barbecue. They ate barbecue and potato salad. The next day 35 people become ill with nausea, vomiting, and diarrhea. Stool cultures indicate that 67 people were actually infected with the virus. Three patients are admitted to the hospital. What is the pathogenicity rate for this outbreak? 3% 35% 52% 67% correct answer: 52% The set of criteria used to distinguish cases from non-cases in an outbreak investigation is the ________. Attack rate Case-fatality rate Case definition Epidemic curve correct answer: Case definition An outbreak is defined as more than 100 cases of disease occurring per 10,000 people in a population. True False correct answer: False In outbreak situations, control and prevention measures cannot be implemented until a cause of the outbreak has been identified through hypothesis testing. True False correct answer: False One hundred fans of the Bearkat Rugby team attend a barbecue. They ate barbecue and potato salad. The next day 35 people become ill with nausea, vomiting, and diarrhea. Stool cultures indicate that 67 people were actually infected with the virus. Three patients are admitted to the hospital. What is the attack rate for this outbreak? 3% 35% 52% 67% correct answer: 35% Which one of the following interventions might improve the health status of a population? Increase income inequality Increase the amount of green sp