passages.id: split_1_test_539_passage
passages.type: progene_text
passages.text: The results of this antigen - detection test indicated high relative sensitivity ( 99.3 % ) and specificity ( 99.4 % ) , and also much higher prevalences of infection in the general population of endemic foci ( 27.9 % for T. b. gambiense and 21.8 % for T. b. rhodesiense ) than detected by parasitological diagnosis ( 1.6 % and 1.1 % , respectively ) .