Y gaeaf diwethaf, hyd at ddiwedd mis Mawrth 2018, cafwyd 71 adroddiad am achosion o'r ffliw yng Nghymru, gyda 42 o'r rheiny (60%) yn digwydd mewn cartrefi gofal. Mae astudiaethau wedi dangos mai nifer isel o'r staff mewn cartrefi gofal sy'n derbyn brechiad rhag y ffliw, a bod mwy o berygl iddynt ddal y ffliw.
Last winter, to the end of March 2018, there were 71 reported flu outbreaks in Wales, of which 42 (60%) happened in care homes. Studies have shown that the uptake of flu immunisation in staff in care homes is low, and that they have an increased risk of catching flu.