https://vesiskitim.ru/2021/09/03/233081-masshtaby-dlitelnogo-covid-u-detej-iznachalno-ne-vyzyvali-opasenij-u-kazhdogo-sedmogo-est-postoyannye-simptomy-cherez-tri-mesyaca-posle-pobedy-nad-virusom-no-bolshinstvo-iz-nix-umerennye-po-dannym-kru