Contact Tracing Tool of COVID -19 for India and Ethiopia using Blue-trace Protocol in Android Mobile

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Dr.M.Indhumathi, P.Udayakumar


Contact tracing is an important tool for reducing the spread of infectious diseases. Its goal is to reduce a disease’s effective reproductive number (R) by identifying people who have been exposed to the virus through an infected person and contacting them to provide early detection, tailored guidance, and timely treatment. By stopping virus transmission chains, contact tracing helps “flatten the curve” and reduces the peak burden of a disease on the health-care system. Contact tracing forms an essential part of Ethiopia and India response to the COVID-19 pandemic. This proposed technical specification for a new privacy-preserving Bluetooth protocol is used to support Contact Tracing and makes it possible to combat the spread of the COVID-19 virus by alerting participants of possible exposure to someone who they have recently been in contact with, and who has subsequently been positively diagnosed as having the virus. The Contact Detection Service is the medium for contact tracking and uses the Bluetooth LE (Low Energy) for nearby smart-phone proximity detection and data sharing mechanisms. Technology (BLE), which has been available in today's smart phones for many years, has proven to be the only way to determine the proximity to other smart phones. In our proposed model, firstly we developed the tracing cloud function and android app which is a privacy-preserving protocol for community-driven contact tracing across borders. It allows participating devices to log Bluetooth encounters with each other, in order to facilitate epidemiological contact tracing while protecting users’ personal data and privacy, finally We developed Tracing calibration data and trial methodologies for testing implementations of Bluetrace protocol.

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