Which of the following is NOT a type of biohazard?

Cooking utensils are not classified as biohazards because they are inanimate objects used to prepare food. Biohazards refer to biological substances that can pose a threat to the health of living organisms, primarily humans. This includes viruses, spoilage bacteria, and pathogenic bacteria, which all have the potential to cause illness or harm.

Viruses are infectious agents that can lead to diseases, spoilage bacteria contribute to the decay of food and can make it unsafe to eat, while pathogenic bacteria are specifically harmful bacteria that can cause infections or foodborne illnesses. Cooking utensils, on the other hand, require proper cleaning and sanitization to prevent cross-contamination but do not themselves pose a biological threat. Thus, they do not fit the definition of a biohazard.