Innate immunity is the phylogenetically oldest mechanism of microbial defense, and it is present in all multicellular organisms, including plants and insects. Adaptive immunity, being more potent and specialized, plays a critical role in defending against these virulent microbes. Innate immunity is the first line of defense against infections, yet many pathogenic microbes have evolved strategies to resist innate immunity. The innate immune response against microbes influences the type of adaptive immune response that develops.The innate immune response can be divided into recognition, activation, and effector phases.Innate immunity is better suited for eliminating virulent, resistant microbes than is adaptive immunity.Deficiencies in innate immunity markedly increase host susceptibility to infection, even in the setting of an intact adaptive immune response.Innate immunity is present in all multicellular organisms, including plants and insects.
Which of the following statements about the innate immune system is NOT true?.Basic Immunology Functions And Disorders of the Immune System 4th Edition by Abul K.
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