Module 8- Epidemics

Concerning a host during an epidemic, which is NOT true?

A. the infectious agent grows inside the host

B. the host need not be human

C. the host is always infected with the agent

D. the host always becomes sick from the agent

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 attack rate for this outbreak?

A.3%

B.35%

C.52%

D.67%

35%

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?

A.3%

B.35%

C.52%

D.67%

52%

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?

A. 2%

B.4.5%

C.8.6%

D.28%

8.6%

Which group is NOT a high priority group for communicating during an epidemic?

A. elected leaders and decision makers

B. health professionals

C. print and broadcast media

D. all are high priority groups

all are high priority groups

A disease transmission through a mosquito bite is an example of _____ transmission

A. active

B. passive

C. direct

D. indirect

indirect

The set of criteria used to distinguish cases from non-cases in an outbreak investigation is the _______

A. attack rate

B. case-fatality rate

C. case definition

D. epidemic curve

case definition

In an outbreak investigation, which of the following measures might be calculated?

A. attack rate

B. case-fatality rate

C. relative risk

D. all of the above

all of the above

True or False

An outbreak is defined as more than 100 cases of a disease occurring per 10,000 people in a population

false

True or False

In outbreak situations, control and prevention measures cannot be implemented until a cause of the outbreak has been identified through hypothesis testing

false