50 Percent Neutralization Endpoint Titer

**Semantic type:** Quantitative Concept

**Definition:** The reciprocal of the highest sample dilution level that results in a greater than 50% neutralization.

**Synonyms:** - 50% Endpoint Protection Titer - 50% NEUTRALIZATION TITER - 50% Neutralization End-point - 50% Protective Titer - Half-maximal Neutralization Titer - NT50 - PRNT 50 - Plaque Reduction Neutralization Titer 50