i spoke with shawn mcdonald, who spent more than 10 years building, deploying and critiquing, mobile technology and humanitarian disasters. busters, infectious disease control, when the patient has positive interview, a person to know where they've been during that period. and then we use that information to try and track down other people that might have had contact in terms of the big change in contact tracing apps from, from analog to digital is that we're moving from and a process that connects people to treatment to a process that communicates risk and communicate in rest in the absence and treatment capacity has a very different effect on a population. it can cause fear, it can cause people to go see more treatment and they otherwise my and so i think that there's a lot to be examined about. the fundamental sort of assumption that go into the digital transformation that has stopped governments and health authorities from jumping on board from italy to india, more than $150.00 on an app enabled systems have been developed to track the spread of covered 19. some researches claim