Scientists have discovered a new “micro-organ” within the immune system, according to a study published in the journal Nature Communications.
Researchers from Australia’s Garvan Institute of Medical Research identified a structure that “remembers” past infections and vaccinations—and is filled with immune cells of many kinds which respond to pathogens that the body has encountered before.
The structure is strategically positioned on the outside of lymph glands to detect infections early, according to researchers. Humans have long known that people who are exposed to an infection are often left with some immunity afterwards.
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