Table 1

Sensitivities and specificities of WB rapid and panLF rapid tests evaluated at five institutions.


WB rapid
panLF rapid


Wb
Bm/Bt
*Other infec-tions
Nor-mals
Sens & Spec
Wb
Bm/Bt
*Other infections
Normals
Sens & Spec

UI
43 (43)
-
0 (13)
-
100% sens
100% spec
24 (24)
35 (38)
-
-
Overall
sens: 95%
Wb: 100% sens
Bm: 92% sens
UM
30 (30)
-
0 (58)
0 (10)
100% sens
100% spec
30 (30)
29 (29)
0 (60)
0 (10)
100% sens (Bm & Wb)
100% spec
AMU
102 (104)
-
-
0 (48)
98% sens
100% spec
99 (104)
-
-
0 (48)
95% sens (Wb)
100% spec
USM
47 (50)
-
1 (65)
0 (50)
94% sens
99% spec
47 (50)
109 (111)
1 (65)
0 (50)
Overall sens: 97%
Wb: 94% sens
Bm: 98% sens
99% spec
ILS
17 (18)
-
-
-
94% sens
17 (18)
-
-
-
94% sens (Wb)

Note: Numbers indicate number of samples that were positive, and numbers in parenthesis were the number of samples tested.

UI : University of Indonesia, Indonesia

UM : University of Malaya, Malaysia

AMU : Aichii Medical University, Japan

USM : Universiti Sains Malaysia, Malaysia

ILS : Institute of Life Sciences, India

sens : sensitivity; spec : specificity

Wb: Wuchereria bancrofti ; Bm: Brugia malayi ; Bt: Brugia timori

Filarial samples tested in Indonesia, Malaysia and India came from mf+ individuals; while those tested in Japan also came from individuals who are mf-, CFA+ (>512 units).

*Other infections: ascariasis, trichuriasis, hookworm, strongyloidiasis, toxocariasis, toxoplasmosis, typhoid, cysticercosis, schistosomiasis, malaria, dengue, amoebiasis

WB rapid: sensitivity : 97.6% (239/245); specificity : 99.6% (243/244)

panLF rapid: overall sensitivity : 96.5% (390/404); sensitivity for Wb detection: 96.0% (217/226); sensitivity for Bm/Bt detection: 97.2% (173/178); specificity: 99.6% (232/233)

Noordin et al. Filaria Journal 2007 6:9   doi:10.1186/1475-2883-6-9