Mae sgrinio am hepatitis B bellach yn rhan o'n rhaglen sgrinio cyn geni, ac mae'r rhaglen imiwneiddio rheolaidd i blant yn cynnwys brechiad hepatitis B, sy’n golygu bod achosion o haint hepatitis B acíwt ymhlith plant yn brin yng Nghymru erbyn hyn. Fodd bynnag, mae'n parhau'n broblem ymhlith oedolion heb eu brechu.
Hepatitis B screening is now included in our antenatal screening programme and hepatitis B vaccination is part of the routine childhood immunisation programme, which means that acute hepatitis B infection in Wales is now rare in children. However, it remains a problem among unvaccinated adults.