Pathogenesis o Pathogenesis is a multi-factorial process which depends on the immune status of the host, the nature of the species or strain(virulence factors)and the number of organisms in the InItial exposurePathogenesis ⚫ Pathogenesis is a multi-factorial process which depends on the immune status of the host, the nature of the species or strain (virulence factors) and the number of organisms in the initial exposure