masks well, they don t fit. reporter: for now the push to vaccinate. the pentagon announing mandatory vaccinations for military members. we re not making a difference. reporter: doctors and medical workers fighting burn out now digging in for yet another surge. morgan chesky, nbc news. focussing on florida, the state with the highest number of children hospitalized with covid-19. nbc s kerry sanders has the latest. reporter: this is kerry sanders in florida where the covid crisis has gone from bad to worse. the florida department of health revealing a single day record, 22,903 covid cases, the third time in a week florida surpassed its all-time high. it s overwhelming our staff. the spread alarming among children, florida now reporting