The JCVI recommended that the second vaccine dose should be given 12 weeks or more following their first dose.
Mae’n cynghori bod dau ddos 10 mcg o’r brechlyn COVID-19 Pediatrig Pfizer-BioNTech (Comirnaty®) yn cael eu cynnig, gyda bwlch o 12 wythnos o leiaf rhwng y ddau ddos.