A patient is being treated for Hepatitis B after getting the virus through a blood transfusion.

The Irish Blood Transfusion Service has confirmed a case of transfusion transmitted infection of Hep B.

It says the donation was made in the window period when the presence of the virus cannot be detected even by the most sensitive tests available.

The IBTS says this is a rare "one in two million event" - and does not have any implications for blood that will be transfused in the future.

Officials say the patient is now being looked after by a medical team.

The IBTS has moved to reassure the public that it has the best standard of blood testing available.

Dr Stephen Field is Medical and Scientific Director of the IBTS, and says they've 'gone to the Nth' degree to ensure safety: