U.K., Sept. 2 -- A robust contact tracing system is essential for people to return to work and for children to get back to schools as safely as possible, minimising the spread of infection.
Contact tracing involves identifying, testing and, if the result is positive, isolating people who have been exposed to COVID-19 to prevent further transmission. When systematically applied, contact tracing can break the chains of transmission of the virus, and is an essential public health tool for controlling the virus.
There are currently two main methods of contact tracing: manual tracing and via a mobile app. A UK report estimated that manual contact tracing can reduce the number of new infections by 5-15%, conducted by volunteers, it has limitat...