Evaluation of the Diagnostic Sensitivity of the VIASURE Leishmania Real-Time PCR Detection Kit Prototype for the Diagnosis of Cutaneous and Visceral Leishmaniasis
Table 2
Clinical performance based on analysis of DNA samples (n = 49): mean Ct values of the duplicate samples for each qPCR kit.
Sample ID
Culture
VIASURE Ct
SACACE Ct
Clinical form/sample
Species identification
Sample ID
Culture
VIASURE Ct
SACACE Ct
Clinical form/sample
Species identification
1
Neg
36.944
35.852
CL/SB
26
Neg
28.818
28.950
CL/SB
2
Neg
Neg
Neg
CL/SB
27
Neg
Neg
Neg
CL/SB
3
Neg
Neg
Neg
CL/SB
28
Neg
36.274
35.693
CL/SB
4
Neg
Neg
Neg
CL/SB
29
Neg
Neg
Neg
CL/SB
5
Neg
Neg
Neg
CL/SB
30
Pos
16.299
16.664
CL/SB
L. infantum
6
Neg
Neg
Neg
CL/SB
31
Neg
32.437
33.767
CL/SB
7
Pos
21.028
19.867
CL/SB
L. braziliensis
32
Neg
33.370
34.922
CL/SB
8
Neg
31.401
31.326
CL/SB
33
Neg
38.231
38.497
CL/SB
9
Neg
Neg
Neg
CL/SB
34
Pos
33.476
32.940
CL/SB
L. panamensis
10
Neg
32.812
33.210
CL/SB
35
Neg
Neg
37.799
CL/SB
11
Neg
Neg
37.669
CL/SB
36
Neg
Neg
Neg
CL/SB
12
Pos
20.922
23.568
CL/SB
L. infantum
37
Neg
33.867
31.056
CL/SB
13
Pos
18.029
21.003
CL/SB
L. infantum
38
Neg
Neg
Neg
CL/SB
14
Neg
39.649
36.799
CL/SB
39
Neg
Neg
Neg
CL/SB
15
Pos
24.630
25.873
CL/SB
L. infantum
40
Neg
Neg
Neg
CL/SB
16
Pos
28.131
28.439
CL/SB
L. major
41
Pos
26.841
29.345
CL/SB
L. infantum
17
Neg
Neg
Neg
CL/SB
42
Neg
Neg
Neg
CL/SB
18
Pos
27.005
27.643
CL/SB
L. major
43
Neg
Neg
Neg
CL/SB
19
Neg
Neg
36.215
CL/SB
44
Neg
Neg
Neg
CL/SB
20
Pos
31.950
30.948
CL/SB
L. major
45
Neg
26.485
26.871
VL/LB
21
Neg
Neg
37.315
CL/SB
46
Pos
22.668
22.829
VL/BM
L. infantum
22
Neg
Neg
37.171
CL/SB
47
Pos
29.201
27.664
VL/BM
L. infantum
23
Neg
34.787
32.655
CL/SB
48
Pos
32.353
32.874
VL/PB
L. infantum
24
Neg
29.512
28.445
CL/SB
49
Neg
Neg
36.435
VL/BM
25
Neg
25.604
23.391
CL/SB
Total POS
13/49
27/49
33/49
CL: cutaneous leishmaniasis, VL: visceral leishmaniasis, SB: skin biopsy, BM: bone marrow, LB: liver biopsy, PB: peripheral blood; Positive result by the STAT-NAT® Leishmania spp. Kit (Sentinel, Milano, Italy). Characterization was done by hsp70 gene sequencing and MALDI-TOF MS [21].