Preparation To prepare for this discussion, search the Internet for data on the current outbreaks of measles, mumps, whooping cough, and other infectious diseases. Remember to think critically about your reference choices. Instructions Using the precede-proceed model, create a one-page memo to a hypothetical supervisor, identifying three important factors in the controversy over immunizations and why they are important: the "precede" part of the model. Include references for your findings. Then, show which sectors of the community should participate in two actions you will recommend to your supervisor. Again, remember, you must always reference your work where the ideas you present are not your own.