This video series talks about Food Safety for People with Weakened Immune Systems. In this video you will learn:
1. What the temperature danger zone is
2. How to protect food from the temperature danger zone

https://www.uhn.ca/PrincessMargaret/

The websites mentioned in this video series are listed below:
http://www.unlockfood.ca/en/Articles/Food-safety
https://www.canada.ca/en/health-canada/services/food-nutrition/food-safety.html