Mae Llywodraeth Cymru wedi gosod uchelgais o sicrhau bod 75% o ddisgyblion ysgolion uwchradd ac 80% o bobl 65 oed a hŷn yn cael eu brechu y ffliw.
The Welsh Government has set an ambition of 75% of secondary school pupils to have the flu vaccination and 80% of those aged 65 and over.