Many countries lack blood donors. The quest to create an artificial, lab-made blood type that could make up for supply shortages is extremely difficult. But there are some technologies that offer hope ...

Scientists have transfused lab-made red blood cells into a human volunteer in a world-first trial that experts say has major potential for people with hard-to-match blood types or conditions such as ...

Our bodies make blood in a specialized niche—a "nursery" within our bone marrow that nurtures blood stem cells so they can replicate and make different kinds of blood cells. The lab of Leonard Zon, MD ...

The new innovation involves using blood made from stem cells in bulk. In future trials, 20 people will be given the laboratory produced blood to see how they fare. The most immediate application, ...