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MEMPHIS, Tenn. — For people who may need a blood transfusion, there may not be enough to go around the next time you’re in a bind.

Lifeblood said there’s a major shortage of O-negative blood.

Now they’re asking eligible donors to help out by donating.

There are five donor centers in the area. They take walk-ins, or you could make an appointment. Donors will receive a Lifeblood shirt and refreshments.

See this list for all the centers and public blood drives for May.