it's great to be outside. >> the sun has come out. there's a lot more people on the beach. >> reporter: this holiday weekend with a grim backdrop of more than 40 million cases in the u.s. now. alex. >> can i ask you quickly, college football kicked off in a big way. you have big major stadiums sold out most of whom were for the first time since the pandemic. what are fans and health experts saying about that? those games. >> reporter: i tell you fans are thrilled to be back. many haven't stepped foot boo their home team stadium since 2019. these are largely outdoor venues. some offering vaccines on site. health experts are concerned about sheer number of people in