90 Percent Neutralization Endpoint Titer

**Semantic type:** Quantitative Concept

**Definition:** The reciprocal of the highest sample dilution level that results in a greater than 90% neutralization.

**Synonyms:** - 90% Endpoint Protection Titer - 90% NEUTRALIZATION TITER - 90% Neutralization End-point - 90% Neutralizing Titer - 90% Protective Titer - NT90 - PRNT 90 - Plaque Reduction Neutralization Titer 90