A former health worker who had been diagnosed with Hepatitis C is now known to have transmitted the virus to two other patients.
Aneurin Bevan Health Board launched an exercise in September after it was revealed that the worker, who was involved in obstetrics and gynaecology, had unknowingly passed on the virus to two people between 1984 and 2003.
They worked predominantly at Caerphilly District Miners' Hospital, but also for a short time at the old East Glamorgan Hospital in ChurchVillage near Pontypridd and Wrexham Maelor Hospital.
More top news
A cold night ahead with clear spells and mist patches forming by the early hours!
The story of how Wales have taken their qualifying campaign by storm, to put themselves within touching distance of Euro 2016.
A 110-year-old All Blacks rugby shirt has sold for £180,000 at auction in Cardiff. We've been taking a look at what else you could buy...