Self-isolation for those who have symptoms and social distancing by everyone is absolutely essential at this stage if we are to delay the spread of this virus and save lives.
Mae hunan-ynysu ar gyfer y rhai sydd â symptomau ac ymbellhau cymdeithasol gan bawb yn gwbl hanfodol yn awr os ydyn ni am oedi lledaeniad y feirws hwn ac achub bywydau.