Learning Objectives o Describe how cells of the innate immune response detect and respond to a threat.Pattern Recognition Receptors (PRR) PAMP or DAMP Infection or cell type 1 Infection or cell type 2 Infection or cell type 3 Recognition is structurally, specific but what is recognized is common to whole groups of organisms or host cells.o Discuss the role of the cellular and molecular components of innate immunity.o Contrast acute and chronic inflammation.o Outline the acute phase response.