Mae brechu wedi cael effaith enfawr ar hynt y pandemig ac wedi helpu i wanhau'r cysylltiad rhwng y feirws, salwch difrifol, derbyniadau i ysbytai a marwolaeth. Maen nhw wedi achub bywydau di-rif ac wedi rhoi'r rhyddid a'r hyder inni ailddechrau ein bywydau yng nghanol argyfwng iechyd byd-eang parhaus.
Vaccines have had an enormous impact on the course of the pandemic and have helped to weaken the link between the virus, serious illness, hospitalisations and death. They have saved countless lives and given us the freedom and confidence to restart our lives in the midst of an ongoing global health emergency.