O ganlyniad, mae’r Cyd-bwyllgor wedi cynghori y dylai pobl dros 16 oed sy'n byw gydag unigolion sydd â systemau imiwnedd sydd wedi gwanhau'n ddifrifol gael cynnig brechiad COVID-19 fel blaenoriaeth. Mae Llywodraeth Cymru, fel gwledydd eraill y DU, wedi derbyn ycyngorhwn ac mae bellachffurflen ar-leinar gael i unigolion sy’n byw gyda rhywun ag imiwnedd ataliedig ei llenwi.
Consequently the JCVI has advised thatpeople over 16 who live with individuals with severely weakened immune systems should be offered COVID-19 vaccination as a priority. The Welsh Government, like the other UK nations, has accepted this advice there is now aform onlinefor individuals who are household contacts of someone who is immunosuppressed to complete.