What best describes a quarantine?

A quarantine is a public health practice used to prevent the spread of contagious diseases by isolating individuals who may have been exposed to an infectious agent. During quarantine, these individuals are kept away from others for a specified period to monitor for symptoms and ensure they do not transmit the disease. Quarantine can apply to people, animals, or even goods, depending on the nature of the disease. It is a critical measure in managing outbreaks and protecting community health.