attracting large crowds, and in missouri the attorney general vowing to fight an indoor mask mandate in st. louis. nationwide more than 66% of the eligible population, those 12 and over, receiving at least one vaccine dose. more than 57% are fully vaccinated, and there are questions tonight about booster shots. will those with compromised immune systems need another dose? abc s trevor ault leads us off. reporter: tonight, the covid surge again filling up hospitals dredging up feelings of deja vu. across america this week hospital admissions jumping nearly 36%. but nurses on the front lines say with the delta variant, this time it s different. we have mothers and fathers and people that are way too young to be on their deathbeds. reporter: travel nurse brittany dillard worked in new york at the start of the pandemic. she s now in missouri. she says last year half her ventilated covid patients would recover, but not anymore. i have not personally taken