Log10 Fluorescent Assay Infectious Dose 50 Percent per Dose

**Semantic type:** Quantitative Concept

**Definition:** A unit of potency expressed as a decadic logarithm of a of 50 percent infectious dose as defined in the particular fluorescent assay method per dose of preparation.

**Synonyms:** - Log10 Fluorescent Assay Infectious Dose 50% per Dose - log10 FAI50/dose - log10 fluorescent assay infectious dose 50%/dose