As of 17 March 2022 all contacts are sent automatic text messages notifying them that they are a close contact and directing them to the appropriate advice.
O 17 Mawrth 2022, caiff pob cyswllt agos eu hanfon neges testun awtomatig i’w hysbysu eu bod yn gyswllt agos ac i’w cyfeirio at y cyngor priodol.