Log10 50 Percent Cell Culture Infective Dose

**Semantic type:** Quantitative Concept

**Definition:** A potency unit for measuring infectious activity of a biologic product or infectious agent preparation equal to a base-10 logarithm of amount of product or agent preparation that causes infection in the 50% of the cell culture-containing vessels inoculated with that dilution of infectious material in the product potency assay or pathogen activity assay.

**Synonyms:** - Log10 50% Cell Culture Infective Dose - lg CCID50 - log10 CCID50 - log10 CCID50 - log10 cell culture infective dose 50