All Ukrainians known to have settled in the area have been sent a letter inviting them to take up the offer of a vaccine at a mass vaccination centre.
Anfonwyd llythyr at yr holl bobl o Wcráin y gwyddys sydd wedi ymgartrefu yn yr ardal, gan eu gwahodd i fanteisio ar y cynnig o frechlyn mewn canolfan brechu torfol.