There were almost 406,000 hits on the NHS 111 Wales website and almost 18,500 completed symptom checks (NHS 111 Wales) in October.
Ar 18 Awst, mae cyfanswm o 4,470,306 (+49,136) o ddosau o frechlyn COVID-19 wedi eu rhoi yng Nghymru a'u cofnodi yn System Imiwneiddio COVID-19 Cymru.