- Most people do not properly wash hands - "the study revealed that consumers are not washing their hands correctly 97 percent of the time".
- Most people do not use thermometers, and those that do, only half know the proper cooking temperatures - "results reveal that only 34 percent of participants used a food thermometer to check that their burgers were cooked properly. Of those who did use the food thermometer, nearly half still did not cook the burgers to the safe minimum internal temperature."
- People tend to cross contaminate other surfaces / food. After handling raw poultry
- 48 percent of the time are contaminating spice containers used while preparing burgers,
- 11 percent of the time are spreading bacteria to refrigerator handles, an
- 5 percent of the time are tainting salads due to cross-contamination.
This is not surprising, and shows the reason why even raw meat processors need to control pathogenic organisms.
Changing behaviors is not easy. It does not help that many high schools have moved away from subjects that cover this.
USDA
https://www.usda.gov/media/press-releases/2018/06/28/study-shows-most-people-are-spreading-dangerous-bacteria-around
Study Shows Most People Are Spreading Dangerous Bacteria Around the Kitchen and Don’t Even Realize It