The fraction 50 ⁄ 54 is a/an:

In an evaluation of screening, specificity measures:

Reports of Influenza like illness rates are the backbone of passive surveillance systems for monitoring seasonal influenza. Which of the following enhance reporting activities would not necessarily be critical to study or monitor in the event of a likely imminent pandemic strain emerging?:

Which statement IS NOT TRUE: The advantage of the above study design is that…

Which ONE of the following is NOT TRUE with regard to ROUTINELY available data:  

A propagated epidemic is usually the result of what type of exposure?

The main advantage of a randomized controlled trial (RTC) compared to all other epidemiology study designs is that the RCT:

What is the incidence of disease during July?

Use the following diagram for Questions 30 and 31. Assume that the horizontal lines in the diagram represent duration of illness in 8 different people, out of a community of 700.

The classical Epidemiological triad DOES NOT INCLUDE: