Call goes out to avoid looming blood supply shortage

HALIFAX: Omicron and blasts of wintry weather are leaving local blood donation clinics with hundreds of empty appointments. It’s not yet an emergency as in the United States, where in January the Red Cross declared its first-ever blood crisis as Omicron, the new, fast-spreading COVID-19 variant, slowed donations. But Kathy Gracie, associate regional director for…