Persistent viral infections pose a unique challenge to the immune system. Prolonged antigen exposure drives T cells into a state of exhaustion — a ...

In evolutionary biology, all life on Earth is theoretically part of a single phylogenetic tree, indicating common ancestry.

Progressive multifocal leukoencephalopathy (PML) is a rare but serious brain infection. It gradually destroys brain tissue and often leads to death within a few weeks. It is triggered by human ...

Researchers at Umeå University have identified two human cell proteins, NUP98 and NUP153, that play a crucial role in how viruses such as tick-borne encephalitis virus (TBEV), West Nile virus, and ...

Killer immune cells destroy cancer cells and cells infected by virus. These CD8 + T cells are activated after detection of viral infection or growth of “non-self” tumor cells. However, in chronic ...

The study demonstrated a substantial clinical burden from multiple viral infections in recipients of allogeneic hematopoietic cell transplants — especially among patients with cytomegalovirus (CMV) ...