reservoir of infection

res·er·voir of in·fec·tion

living or nonliving material in or on which an infectious agent multiplies and/or develops and is dependent for its survival in nature.

res·er·voir of in·fec·tion

(rez'ĕr-vwahr in-fek'shŭn) Living or nonliving material in or on which an infectious agent multiplies and develops and is dependent on for its survival in nature.
See also: fomes