Which of the following is a sign of rodents or rodent infestation?

The presence of fresh feces in food preparation areas indicates that rodents have been active in that space, as they frequently leave droppings near their food sources. Chewing on packaging materials suggests that rodents are not only present but are actively seeking food, which is often attractive to them due to its smell or availability. Additionally, gnaw marks on surfaces may indicate a nesting or foraging behavior, as rodents have constantly growing teeth that necessitate gnawing on various materials to keep them at a manageable length.

Each of these signs collectively points towards an infestation, as they illustrate different behaviors and issues related to rodent activity. Therefore, recognizing all these signs is critical to understanding the extent of a rodent problem within a food establishment. This holistic understanding enables food handlers to take appropriate actions to mitigate risks and maintain safe food environments.