Juan, a restaurant food handler, is making sandwiches for lunch service. His nose starts to itch, so he stops working and scratches his nose for about 30 seconds. Then, Juan continues to mak

Juan, a restaurant food handler, is making sandwiches for lunch service. His nose starts to itch, so he stops working and scratches his nose for about 30 seconds. Then, Juan continues to make the sandwiches.
In the space provided, explain what Juan does wrong and what pathogen he might be carrying.