About 70 children in Maryland’s Prince George’s County received expired vaccine doses, according to health officials, as they recommended the children get revaccinated for COVID-19. The Prince George’s County Health Department said it informed the families of those 70 children aged 5 to 11 that they “received expired first or second doses of Pfizer’s pediatric vaccine at the County’s Sports and Learning Complex” on Nov. 26. The county blamed the incident on a “vaccine storage error,” which occurred when 300 Pfizer doses were transported “from a provider that was unable to administer the doses before they expired on November 24.” A vendor at the Sports and Learning Complex clinic administered most of the transferred doses before they expired. But 70 remaining doses were not discarded and were mistakenly stored in a refrigerator with other, viable vaccine doses, the country said. Those remaining doses that had expired were then “mistakenly placed on …