हेंथा - देहा / जिबख्रिजों मोनसे एन्टिजेननि थि फिनजाथाइआ थै एबा बिदामाव बेनि नुजाथिनायनि लेबरेटरी नागिरनाय गनायथि होयो ।
An antigen's specific reactivity with antibody cells allows laboratory detection of its presence in blood or tissue .