Final answer:
Cross-contamination, poor personal hygiene, and time-temp. abuse are important factors to consider in food safety and can lead to foodborne illness.
Step-by-step explanation:
Cross-contamination refers to the contamination of food by microbes from another food that it comes into contact with either directly or indirectly. This can happen due to poor personal hygiene or time and temperature abuse.
Poor personal hygiene practices, such as handling or preparing food with unwashed hands, can lead to foodborne illness. For example, the norovirus, a leading cause of foodborne disease, can easily contaminate food when infected individuals touch it with their hands that might carry the virus particles.
Time and temperature abuse refers to situations where food is not stored or cooked at the proper temperatures and for the appropriate amount of time, allowing bacteria to grow and multiply, increasing the risk of foodborne illness.