A specially-commissioned piece of street artwork has been unveiled on Macken Street in Dublin to mark the 50th anniversary of the Irish Haemophilia Society.

The street art reflects the personal experience of patients and nurses from St James's Hospital affected by haemophilia - which is a lifelong blood clotting disorder.

The visual, commissioned by the Irish Haemophilia Society in partnership with Roche, was developed by artist Shane O'Malley and unveiled today to coincide with World Haemophilia Week.

Brian O'Mahony, Chief Executive of the Irish Haemophilia Society, said there had been tremendous improvements in haemophilia treatment in recent years.

He said there was now a purpose built National Coagulation Centre in St James's Hospital, a state of the art in-patient unit and a clinical trial unit, which has assisted in having the facilities to carry out and access clinical trials for new therapies.

He also said there were comprehensive haemophilia centres at Our Lady's Children's Hospital in Crumlin and at Cork University Hospital.

Haemophilia is a genetic blood disorder in which there is a defect in the clotting mechanism of the blood.

It affects around one in 5,500 people in Ireland.