“Er bod y brechlynnau wedi gwanhau’r cysylltiad rhwng y feirws a’r angen i fynd i’r ysbyty, rydyn ni’n gweld pobl ifanc, heini yn dioddef o COVID hir, sydd, yn achos rhai, yn cael effaith enfawr ar eu bywydau.
“Even though vaccines have weakened the link between the virus and hospitalisation, we are seeing young, fit people suffer from long-Covid, which, for some, has a major impact on their lives.