Neutrophils are white blood cells that are important for protection against infections. These frontline fighters against infection release chemicals such as hydrogen peroxide to kill germs or clean up wounds. 

Increased risk of infection can happen when the body does not have enough neutrophils in the blood stream; when neutrophils cannot travel through the bloodstream to sites of infection efficiently; or when the neutrophils are unable to make oxidants such as hydrogen peroxide to kill infecting microbes. 

Learn more about the role of neutrophils in primary immunodeficiency diseases (PIDD).

AAAAI - American Academy of Allergy Asthma & Immunology