In world-first trial, lab-grown blood was just injected into two people

In a world first, two people were injected with red blood cells grown in a lab as part of a clinical trial, the research team announced

. It’s a first step toward seeing if lab-grown blood cells are safe and work in the body — which would be a major advance for people living with rare blood types or blood disorders.

“This world leading research lays the groundwork for the manufacture of red blood cells that can safely be used…