It helped the contact tracing service to achieve very high follow up rates, and it enabled Wales to deliver one of the fastest and most effective vaccination programmes in the world.
Helpodd y gwasanaeth olrhain cysylltiadau i esgor ar gyfraddau dilynol uchel iawn, a galluogodd Gymru i gyflwyno un o’r rhaglenni brechu cyflymaf a mwyaf effeithiol drwy’r byd.