Dylai pawb sydd eisoes wedi cael dos cyntaf o frechlyn AstraZeneca gael eu sicrhau mai cyngor y Cyd-bwyllgor ar Imiwneiddio a Brechu yw y dylent gael ail ddos o’r un brechlyn, ni waeth beth fo’u hoedran. Gall eithriadau meddygol fod yn berthnasol i leiafrif bach iawn.
Everybody who has already had a first dose of the AstraZeneca vaccine should be reassured that they should receive a second dose of the same brand, irrespective of age, in line with JCVI advice. Medical exemptions may apply to a very small minority.