Since the last formal review of the coronavirus Regulations, Cabinet has moved to a weekly review in response to the rapidly evolving public health situation and the emergence of the omicron variant.
Yng ngoleuni’r bygythiad sy’n cael ei achosi gan Omicron, yr amrywiolyn sy’n peri pryder diweddaraf, gofynnwyd i'r JCVI adolygu Rhaglen Frechu COVID-19 y DU yn gyflym.