What type of contamination includes infected food handlers and improperly washed surfaces?

Biological contamination refers to the presence of harmful microorganisms such as bacteria, viruses, or parasites in food. This type of contamination can occur due to infected food handlers who may transfer pathogens to the food through poor hygiene practices, such as not washing their hands after using the restroom. Similarly, improperly washed surfaces can harbor these microorganisms, which can then contaminate food that comes into contact with these surfaces.

Understanding biological contamination is crucial for food safety, as it directly impacts the health of consumers. The prevention of such contamination involves rigorous hygiene practices, including handwashing and proper cleaning and sanitizing of surfaces. By recognizing the role of human health and the cleanliness of food preparation environments, one can help ensure that food remains safe to eat.