Why do some vaccines protect for a lifetime, while threats like tumors and viruses present such an ongoing challenge? The answer lies in the immune system’s memory and how invading pathogens hack the system.

It has long been suspected that endothelial cells, the specialized cells lining the inner walls of blood vessels, play a key role in determining how the body’s immune system responds to tumors. Researchers at the German Cancer Research Center (DKFZ) in Heidelberg and the Medical Faculty Mannheim of Heidelberg University have now identified, in mouse studies, a specialized population of blood vessel lining endothelial cells that enable an effective immune defense against cancer metastases in the liver. The findings could pave the way for novel combination therapies for cancer.

Using advanced electron microscopy, researchers in Leiden have captured detailed images showing how, in the rare pregnancy disorder FNAIT, antibodies produced by the mother can cause bleeding in fetuses. The findings, published in Science Advances, could help pave the way for a test that identifies, during pregnancy, which babies are at greatest risk.

Many of us have grown up hearing the mantra that breakfast is the most important meal of the day, yet children’s cereals fall short of that standard. That is the takeaway of new research analyzing child-targeted cereals in Canada.

Countries failed to find a breakthrough after a seventh round of talks aimed at finalizing the missing piece of a pandemic treaty, the World Health Organization said Monday.