Germinal centers are high-speed evolution machines. Tiny clusters in the lymph nodes, germinal centers refine antibodies through mutation and expansion until they produce high-affinity B cells adapted ...

The immune-boosting power of a fever is surprisingly ancient. Cold-blooded creatures like fish typically move to warmer environments to help fight infections. In one fish species, Nile tilapia, that ...

A new Stanford study published Thursday marks a big step forward in the creation of a new kind of vaccine that offers protection against a range of infections at once. Traditionally, vaccines protect ...

Scientists generally agree that eukaryotes, the domain of life whose cells contain nuclei and that includes almost all multicellular organisms, originated from a process involving the symbiotic union ...

A comparison between a healthy brain (left) and a brain severely affected by Alzheimer’s disease (right). Alzheimer’s leads to significant shrinkage and loss of brain tissue, reflecting the damage ...

Tuberculosis, caused by the bacterium Mycobacterium tuberculosis (Mtb) kills upwards of 1.6 million people a year, making it one of the leading causes of death by an infectious agent worldwide -- and ...