. >> reporter: adam chandler is the author of dhru dres. >> it doesn't exist as a culture.ve-thrus and fast food, the way ite else in theworld. >> reporter: driveu it existsute >> reporter: and that flavor sells. according to a recent study, fast food restaurants take in about 70% of their income through that little window. and now the pandemic has made it the only game in town. >> drive-thrus are how hospital workers and truckers and families are getting fed right now, and so it's actually how the country is continuing to move. and that's important to note, too. >> hi there. >> reporter: but whether you're selling burgers or booze or band aids, working a drive-thru is a tough business, especially when the cars won't stop coming. dr. abanante. what has this been like for you? >> this has been really hard for me. my family's moved out and i have four kids. they moved to my in-laws. and i get to see them tomorrow, which is really exciting. >> reporter: i mean, you are on the front line so you felt like you had to isolate yourself, essentially. >> i felt like that was best. an

. >> reporter: adam chandler is the author of "drive through dreams." >> it doesn't exist the way itin the world. >> reporter: the drive yodrive-through is uniquely american? >> yes. and with flavor. >> reporter: and that flavor sells. fast food restaurants take in about 70% of their income through that little window, and now the pandemic has made it the only game in town. >> drive-throughs are how hospital workers and truckers and families are getting fed right now. and so it is actually how the country is continuing to move. and that's important to note, too. >> reporter: but whether you're selling burgers or booze or band-aids, working a drive-through is a tough business, especially when the cars won't start coming. dr. abinante. what has this been like for you? >> it has been really hard for me. my family has moved out. i have four kids, and they've moved to my in-laws, and i get to see them tomorrow, which is really exciting. >> reporter: you are on the frontlines, so you felt like you had to isolate yourself? >> i felt that way, and my wife was very worried about the disease. m