Current levels including O negative and B negative are at just 2 days supply, with O positive at just over 3 days.
An urgent appeal for blood donations is being made with some blood groups at under 3 days of stock.
The Irish Blood Transfusion Service needs to boost supply by nearly 500 donations per week to meet demand.
Current levels including O negative and B negative are at just 2 days supply, with O positive at just over 3 days.
IBTS Director of Donor Services Paul McKinney says people of African heritage are being asked to contribute blood.

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