like a detective, you're investigating this every step this person took, i interviewed a woman maggie sternen he son came back from europe, he was likely covid-positive. he got sick and was home and they did their own contact tracing just to alert everyone. they called the airline, they called, you know, previous contacts in europe and they didn't get any sense of anyone had followed up. how do you get all the pieces in the chain to be responsive in. >> yeah, we're so appreciative, nicolle, to be on your show because it takes a lot of public information and media and getting people to understand that fundamentally, contact tracing should be about care, it's about -- just like that family you talked to, it's about caring for others and caring for our own families. most of the transmission of covid-19 happens within very close contacts, roommates, other close colleagues, so, you know, i think technology has a big role to play but people are very scared right now. this isn't an easy time. to have a human who can be saying, look, you've been exposed, first of all, how are you? we have your back