Corona brings public life to a standstill. The economy threatens to collapse in some sectors. The devilish nature of the pathogen: who is infected and who is not, which areas are safe and where business operations can continue confidently – all this is uncertain thanks to inconsistent symptoms and long incubation periods. The Dutch Public Health Blockchain Consortium has developed a monitoring solution for the spread of viruses, bacteria and other pathogens. The purpose of the software is to help public authorities to systematically track the spread of life-threatening diseases and pathogens such as the coronavirus COVID-19. The software covers communities and workplaces where there are no cases of infection. The consortium is taking an unusual approach, describes PHBC boss Lyon Hazra: “Unlike conventional monitoring of infectious diseases, which focuses on infected people, this system instead monitors the movement of non-infected people. It restricts their return to safe zones if they have passed through areas known to be infected. The software automatically collects information about whether an area is safe or not from official government information. If an area is considered safe, all non-infected persons in the area are recorded. If you want to leave these areas and enter suspected risk areas, you must expect quarantine and isolation measures. In this way, “individual areas would become safe zones and the population would be effectively protected”, Hazra is convinced of the potential of the software. A one-year test phase is currently underway.