Azumanga was around and well-enough established for a PR campaign over 20 years ago....
Having seen the anime when it came out, that makes me feel really old.
Also given this PR is about mitigating a health emergency when we're in one again now makes you realize things really haven't improved all that much in that time.
Colorful Land SaitamaHeat the food adequately! (over a minute at 75°C)Wash your hands!Before meals, and after going to the bathroom...Advice concerning O-157!!To prevent an O-157 infection you should...Keep the knives, chopping boards and other kitchen utils, and foodstuffs, clean!Wash your hands with soap after going to the toilet and before cooking and eating!