Unformatted text preview: ). It also deals with pathogenesis , the manner in which a disease develops. Pathology is also concerned with the structural and functional changes brought about by the disease in tissues. The terms infection and disease do not have identical meaning. Infection refers to an invasion of body tissues by microorganisms; disease is a change from the state of good health resulting from a microbial population living in the tissues (Figure 1 ). Infection may occur without disease. For example, the flora of microorganisms always present on the body's skin is a type of infection but not disease....
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- Fall '07