Working in long-stay residential and nursing care homes or other long-stay care facilities where rapid spread is likely to follow introduction of infection and cause high morbidity and mortality
Gweithio mewn cartrefi gofal preswyl a nyrsio arhosiad hir neu gyfleusterau gofal arhosiad hir eraill lle bydd haint yn lledaenu’n gyflym ac yn achosi lefelau uchel o salwch a marwolaeth