HOST FACTORS

Host factor is a medical term referring to the traits of an individual person or animal that affect susceptibility to disease, especially in comparison to other individuals. The term arose in the context of infectious disease research, in contrast to "organism factors", such as the virulence and infectivity of a microbe. Host factors that may vary in a population and affect disease susceptibility can be innate or acquired. Some examples:general healthpsychological characteristics and attitudenutritional statesocial tiesprevious exposure to the organism or related antigenshaplotype or other specific genetic differences of immune functionsubstance abuserace
See more at Wikipedia.org...

Host factor Epidemiology An intrinsic factor–age, race, sex, behaviors, etc. which influences an individual's exposure, susceptibility, or [more]Host factors - Community and Resources