83% of children living in Flying Start areas were fully immunised by their 4th birthday (2018-19), a slight increase since 2017-18.
Roedd 83% o blant a oedd yn byw mewn ardaloedd Dechrau'n Deg wedi cael eu himiwneiddio'n llawn erbyn eu 4ydd pen-blwydd (2018-19), cynnydd bach ers 2017-18.