Now we dive into the study of disease, looking at how we can break things down by place and over time. . . with a special focus on unusual disease events. The five question quiz asks about what we've covered up to that point.

How do people working in health departments handle disease cluster investigations? Who else is involved? Module 3 starts off with some videos and a discussion. We look forward to engaging with you! At the end of the module, a quiz asks about material covered since your last quiz.

As we've mentioned, the tools available to public health often don't lead to the answers for which a community hoped. This module covers some of the reasons for that. Your final quiz asks about material presented in Module 4.

Around the world, many communities grapple with disease clusters every day. Hear from an organization in the US working with those communities to help answer their questions. Your final assignment asks to you bring together everything you've learned to develop a plan for how you will (or would) handle a disease cluster investigation. We hope to see lots of innovative ideas!