Which individual is considered the index case?

Which statement best describes epidemiology?

Which type of epidemic is characterized primarily by person-to-person transmission?

At the beginning of an outbreak investigation, 800 people are at risk of developing the disease. During the investigation, 40 new cases occur. What is the cumulative incidence?

A community is experiencing repeated gastrointestinal illness associated with contaminated drinking water. Which One Health strategy would be most appropriate?

A disease outbreak begins with exposure to contaminated food, followed by person-to-person transmission among some of the individuals who became infected. This is most consistent with a

During an outbreak, 500 people are diagnosed with a disease. Of those individuals, 10 die from the disease. What is the case fatality rate?

Primary prevention occurs after an individual has already developed a disease.

Which of the following is an example of a modifiable risk factor?

A determinant of health is best described as: