Preliminary research was conducted with public health officials and CCC staff to develop appropriate questions for use in the focus groups. One-on-one interviews were conducted with public health officials to gather information related to the types of centres that they worked with, how enteric illness outbreaks were typically managed, what support public health officials provided, and their experiences while working with CCC staff. Observations of daily operations were also conducted in five centres to better understand the working environment and how staff interacted with their coworkers and supervisors. Time spent observing in the centres ranged from two hours to a full day.