The immune system is comprised of two separate active arms of immunity to provide robust protection against disease. The two separate systems of immunity include the innate and adaptive immune ...

More than 200 viruses can infect and cause disease in humans; most of us will be infected by several over the course of a lifetime. Does an encounter with one virus influence how your immune system ...

The adaptive immune system of vertebrates represents a major evolutionary innovation that underpins the capacity for antigen-specific recognition, immunological memory and refined regulation of host ...

A unique quality of the immune system is that it can generate a ‘memory’ response. This is generally referred to as ‘immune memory’ because of the body’s ability to remember previously encountered ...

The classical role of adaptive immunity as a protector against external threats has expanded to include its functions in cancer surveillance, tissue repair and regeneration, and, more recently, it has ...

A macrophage that has already fought off one infection does not return to a blank slate. It carries chemical scars, etched into the very structure of its DNA packaging, that change how it responds the ...

Findings from St. Jude Children's Research Hospital demonstrate that virtual memory T cells, a specialized group of immune cells, provide nonspecific immunity for infants early in life. The work stems ...

We sometimes hear about the benefits of “boosting” our immune system, but what we really want to do is support our immune system on an ongoing basis. People often think of the immune system as ...

For decades, dogma dictated that the immune system consisted of two separate branches. Cells of the innate system respond rapidly to molecular patterns shared by a broad array of pathogens. Meanwhile, ...

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 ...