United Blood Services has issued an emergency appeal for blood donations.
Marketing spokesman Susan Morris said both local and national donations are down, which has placed meridian-area hospitals with less than a half-day supply.
Morris said there were less than a dozen units of O positive and only six units of O negative early Wednesday.
Eligible donors may give during business hours at 1115 25th Avenue in Meridian.
UBS will also be open Saturday from 9:00 a.m. to 4:00 p.m.
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