With CDC data showing 64.6% of the adult population vaccinated with at least one dose and vaccines available to Americans 12 and older, pediatricians are now working to fill in some of the gaps in vaccine coverage. One month after Sandhills Pediatrics in Southern Pines, North Carolina started offering the Covid-19 vaccine, the practice administered 940 doses of the Pfizer vaccine -- 268 went not to patients, but adults over the age of 23.