Abstract: A patient tracking and diagnosis system is disclosed for providing a physician, medical diagnosis information related to a patient suspected with transmissible diseases based on the geo-location of the patient. In specific, the system comprises a mobile application module accessed by a patient to record patient location information, health information and the like, a data collection and analysis storage unit to collect, store and analyze the recorded data of various patients, a physician application module to access the patient's information and retrieve medical diagnosis information based on the geo-locations of the patient, proximity from other patients with suspected/conformed diagnosis and thereof. The invention is advantageous in aiding physicians to get knowledge of suspected diagnosis for a patient and thereby performing only those treatment tests that are necessary and thus eliminate unnecessary tests.