Contact tracing and backtracing

When a person is diagnosed with an infectious disease, contact tracing commences. This has two components: to find out who the infected person has been in contact with while they were infectious, and to identify who the infected person may have caught the disease from. This enables actions such as testing and quarantine to limit the spread of disease.

Contact tracing is relatively easy for e.g. sexually transmitted diseases, since most people can easily identify all their sexual partners in the last few weeks or months. This is not the case for infectious diseases that spread more easily, e.g. through airborne transmission such as tuberculosis, measles and chicken pox. 

This gap therefore primarily addresses technical means for backtracing the movement of the patients. Ideally, the solutions should also aid automatic discovery of all the people they met (e.g. for infectious diseases transmitted by contact) or who simply crossed their way (e.g. for diseases transmitted by aerosols). Moreover, the solutions should be compatible with the General Data Protection Regulation (GDPR)