Trauma's hidden toll: new study probes blood changes that raise infection risk

This study looks at what happens to blood and bone marrow after a severe injury. Researchers want to understand why some trauma patients develop a weakened immune system and get serious infections like sepsis. About 255 adults with severe fractures will give blood and a small bone marrow sample during surgery. Their results will be compared to people having routine hip surgery. No new treatment is being tested — the goal is simply to learn more.