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Table 3 pfMGET (male gametocyte) qRT-PCR assay for assessing intra-assay variability between technical replicates

From: Assays for quantification of male and female gametocytes in human blood by qRT-PCR in the absence of pure sex-specific gametocyte standards

Standard (gametocytes/mL)

Detected (% positive)

Mean Cq (SD)

Range Cq

%CV Cq

1.73 × 107

15/15 (100.0%)

16.56 (0.06)

16.44–16.70

0.4

1.73 × 106

15/15 (100.0%)

19.86 (0.06)

19.70–20.08

0.3

1.73 × 105

15/15 (100.0%)

23.19 (0.06)

23.03–23.32

0.3

1.73 × 104

15/15 (100.0%)

26.57 (0.10)

26.41–26.76

0.4

1.73 × 103

15/15 (100.0%)

29.94 (0.20)

29.68–30.52

0.7

1.73 × 102

14/14 (100.0%)

33.28 (0.39)

32.63–33.93

1.2

86.19

24/24 (100.0%)

34.35 (0.40)

33.32–35.08

1.2

43.10

24/24 (100.0%)

35.47 (0.92)

34.09–37.13

2.6

21.55

22/24 (91.7%)

36.47 (0.75)

34.94–37.25

2.1

11.17

14/24 (58.3%)

36.59 (0.49)

35.47–37.21

1.3

5.59

8/24 (33.3%)

36.73 (0.64)

35.89–37.47

1.7

Negative control

0/6

Not detected

  

Total

181/209 (86.6%)

30.34 (0.51b)

16.44–37.47

 
  1. Cq: quantification cycle, SD: standard deviation, %CV: percent coefficient of variation, Negative control: uninfected human blood control
  2. bOverall SD