are every day hearing about more and more probable cases so that number is likely to rise. >> u.s. now averaging about 120,000 new covid cases a day. as you can see there, that is the highest level in two months. the good news here though, vaccine demand is skyrocketing. it is now the strongest it's been nearly since may, early may. cnn's an na stewart joins us frm london's gatwick airport. how are they coping? what are you hearing? >> reporter: good morning, laura. yeah, it's been okay. everyone is coping. i just met some american travelers heading home to florida, their flight taking off in a couple of hours. for them, it was moving their predeparture booking from a few days ago to just yesterday. it can be a rapid antigen test around $40. not too expensive. some people did it by zoom.