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Related to biological transmission: vector transmission
biological transmissionIndirect vector-borne transmission of a pathogen, in which it undergoes biological changes within the vector before transmission to a new host. Biological dose measurements are used to identify exposure: the presence of a contaminant or metabolites in specimens—e.g., blood, hair, or urine—confirm exposure, and can be an independent variable in evaluating the relationship between the exposure and any adverse health effects.
A condition in which the organism that transmits the causative agent of a disease plays an essential role in the life history of a parasite or germ.
See also: transmission