A system and method are disclosed that are able to identify and distinguish persons as soon as they enter or exit a hospital room or any room occupied by a patient who is receiving medical or dental services. After a person who has entered a hospital room has been identified, this person may be required to sanitize his/her hands in order to comply with an established protocol. Therefore, a second identification may take place at the hand sanitization station. The system may confirm that the same person was identified by a first read by the RFID antennas upon entering the room and by a second read by the RFID antennas upon completing the hand sanitization procedure. If no hand sanitization takes place, visual and/or auditory stimuli may be generated as a reminder. Persons and their hand sanitization performances may be used diagnostically to identify and remedy potential contamination events and/or determine the source and mode of transmission of a nosocomial infection. This information may be returned in real-time as well as stored in a database.