Quarantine is used when someone has been exposed to a communicable disease, but they are still well. Quarantine separates and restricts the movement of exposed people during the time when they may become ill. It lasts as long as needed to make sure the person does not have the disease.
People under quarantine for the new coronavirus are given legal and specific instructions to stay home and stay away from others. They are regularly contacted by DHS to make sure they are home and to see if they have gotten sick. If needed, additional legal measures can be taken to ensure they stay home and stay away from others.