Abstract: A system, method and device for tracing contact or proximity between people and between people and items to be tracked, wherein data is recorded by the device and contacts between people and other people or things is traced for disease transmission containment or for optimized asset utilization and fraud prevention. In a preferred embodiment, the device communicates stored data to a second device. In a further preferred embodiment, when a proximity threshold has been violated between two devices that have come too close to each other, an alarm in each device is activated to alert the persons bearing the device that a proximity violation has occurred, such that the proximity violation is immediately corrected by the individuals involved moving apart so that the alarm returns to a deactivated state. The device, system and method of this invention provides a valuable readiness resource for pandemic disease spread containment.