The virulence factors of a pathogen are determined by how strong or weak a patient's body defenses are at the time of infection.

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The virulence factors of a pathogen are determined by the pathogen's own genetic makeup, not the strength of the host's immune system. However, the strength of the host's immune system can affect the severity of the infection and the ability of the host to fight off the pathogen.

The Virulence Factors of a Pathogen Are Determined by How