Which of the following situations does NOT by itself require a food handler to wash their hands?

Giải thích

Handwashing is required after using the restroom, touching the body or hair, handling raw animal foods, coughing or sneezing, taking out trash, and before starting food work, among others. The scope word is 'by itself': simply tying on a clean apron over hands that are already clean and freshly washed does not contaminate them, so no new wash is triggered by that act alone. The other three describe hands that have just touched the body, raw chicken, or the restroom, and each of those demands a wash before food is handled.