I have already used much of the information from this (online) module…
Just-in-Time Training for Environmental Assessments during a Foodborne Illness Outbreak Investigation
The Just-In-Time (JIT) Training is an online toolkit designed for experienced environmental health specialists to use just prior to conducting an environmental assessment for a foodborne outbreak investigation. The JIT training provides only the most concise and on-the-go refresher information across 11 environmental assessment topic areas. Unlike other traditional trainings, the JIT training does not require users to take modules sequentially or to completion. Each module includes target objectives, a strategy checklist, tips from the field, and a downloadable toolkit item.
Access training here.