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Humans are protected by two branches of the immune system. Innate immunity provides built-in defense against widespread characteristics of bacteria and viruses, while adaptive immunity memorizes ...
Innate immunity is mediated by different cell types and cell-associated or fluid-phase pattern-recognition molecules and plays a key role in tissue repair and resistance against pathogens. 1 Exposure ...
Scanning electron micrograph of a human T lymphocyte (T cell) from a healthy donor's immune system. [National Institute of Allergy and Infectious Diseases/NIH] When a tissue experiences inflammation, ...
Bacillus Calmette-Guérin (BCG) is one of the world’s oldest and most widely used vaccines. It was developed in the early 20th century to provide protection from tuberculosis. Surprisingly, this ...
Trained immunity is a newly emerging concept that defines the ability of the innate immune system to form immune memory and provide long-lasting protection against foreign invaders. The human immune ...
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