50 Percent Embryo Infective Dose per Dose

**Semantic type:** Quantitative Concept

**Definition:** A potency unit for measuring infectious activity of a biologic product or an infectious agent preparation equal to the potency at which one dose of infectious material contains one 50 percent embryo infective dose.

**Synonyms:** - 50% Embryo Infective Dose per Dose - 50% embryo infective dose/dose - EID 50/dose - EID50/dose - EID50/dose - [EID_50]/{dose} - [EID_50]/{dose}