The factors that determine the EXTENT to which a The INFECTIOUS AGENT may cause an infection are Pathogenicity and Virulence.
What is Pathogenicity?
Property of a microorganism to cause physiological changes in the host, that is, the ability to produce disease.
What is Virulence?
Degree of pathogenicity, determined by the virulence factors expressed by the cells.
With this information, we can conclude that pathogenicity and virulence are crucial in the establishment of a disease in the host.
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