Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

The ABO-Rh system of blood group typing is an immensely successful method that helps medical professionals safely perform blood transfusions throughout the world. Scientists from the French Blood ...

DEAR DR. ROACH: I read that in the 1700s, animal blood was transfused into humans to cure syphilis. Is this true? -- T.U. ANSWER: The story is a bit more complicated. Transfusion from animals into ...

Clinical trials to explore the use of universal artificial blood are underway in Japan after initial volunteer doses began in March. The research, led by Professor Hiromi Sakai's laboratory, plans to ...

The team observed the emergence of the three-dimensional embryo-like structures under a microscope in the lab. These started producing blood (seen here in red) after around two weeks of development - ...

Every second, an adult generates around five million new blood cells to replace aging or dying ones, making the blood system a highly regenerative organ. These new blood cells are formed in the bone ...

There are rare blood types beyond the eight most common ones, and researchers have discovered one more that brings the total count to 49. Blood type A(B) is caused by a four gene mutations and was ...