Fig. 4From: Performance of clinical signs and symptoms, rapid and reference laboratory diagnostic tests for diagnosis of human African trypanosomiasis by passive screening in Guinea: a prospective diagnostic accuracy studyReference laboratory test results on dried blood spots. The Venn diagram shows the results of trypanolysis, ELISA/T.b. gambiense, LAMP and m18S qPCR on DBS from 34 HAT patients (HAT ⊕) and 43 HAT negatives (HAT∅) who all tested rapid diagnostic test positive. T°trypanolysis not performed, L°LAMP not performed, ✞ died after the first parasitological examination at inclusion, *including 1 HAT negative person with 265 WBC/µl. WBC White blood cellBack to article page