Appeal to encourge O- givers

The Red Cross Blood Service is appealing for donors of O-negative blood to step up and give, as supplies run low.

The Red Cross Blood Service is appealing for O-negative blood donors to come forward. (AAP) Source: AAP

A critical shortage of O-negative blood across Australia has sparked the latest Red Cross Blood Service appeal for donors to come forward.

The blood service is urging people with O-negative blood to make a donation as its reserves dip to just two days' supply.