Contact tracing is a cornerstone of any well-coordinated health system. When a patient is diagnosed, community health workers will speak with the patient to learn who may have come into contact with him or her and been exposed. A community health worker will then travel to screen the family members, friends, or neighbors to make sure they’re not infected. If one of these individuals is presenting symptoms, he or she will be accompanied for further evaluation and monitoring. Currently, this time and resource-intensive process must be done in person and on foot.