rolling up their sleeves to get their first covid shots. how did it feel? it felt good. and some people don t need to really be worried about it. it may hurt for a little bit, but then it will be fine after reporter: millions of doses making their way to thousands of doctor s offices, farm sips and vaccination sites over the next week, after the cdc director gave the pfizer vaccine the green light for kids 5 to 11. i feel relieved. it s just relief. just an extra burden that s been taken off. here we go! reporter: some brave youngsters getting a little support from therapy dogs. 9-year-old patrick and his 5-year-old brother paxton, who had leukemia. 1 at texas chirp s hospital, already scheduling 38,000 appointments. today s shots, emotional for some parents who have lost family members in the pandemic. it means they have a layer of protection now that they didn t have before. reporter: but it may take days for parents to get their kids the shot. major fopharmacies like c