The Council of State and Territorial Epidemiologists website has posted a prototype educational module, developed with funding by the CDC, called "EpiVenture: Outbreak Investigation." This software lesson is very similar to proprietary training modules we use in the pharmacy, and it is a very effective tool. The course comprises a mixture of text outlines and terms, with multiple-choice tests and interactive case studies interspersed throughout. I found the prototype version of EpiVenture to be both informative and engaging. Hopefully the CDC/CSTE continue to develop and release new lesson modules for EpiVenture.
Try this self-instructional web course out for yourself: