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Table 1 Normalized absorbance ratios of seven Plasmodium falciparum native culture strains (ITG, W2, 3D7, HB3, Dd2, D10, 3BD5) for parasitaemia ranging from 0.01 to 2000 p/µL

From: A new highly sensitive enzyme-linked immunosorbent assay for the detection of Plasmodium falciparum histidine-rich protein 2 in whole blood

Parasitaemia (p/µL)

Normalized absorbance ratio

ITG

W2

3D7

HB3

Dd2

D10

3BD5

2000

43.9

44.1

40.1

31.8

40.1

31.8

0.8

666.7

44.1

44.1

40.1

31.8

32.2

23.5

0.8

222.2

44.0

44.0

40.1

31.8

10.0

7.3

0.8

74.1

32.1

37.3

40.1

31.8

2.9

1.5

0.8

24.7

16.0

19.2

40.2

28.9

1.0

0.7

0.8

8.2

6.2

8.0

31.3

13.7

0.8

0.6

0.8

2.7

2.5

3.4

17.0

6.0

0.9

 

0.9

0.9

1.5

1.9

7.5

3.0

0.8

 

0.8

0.3

0.9

1.2

3.5

1.6

   

0.1

0.8

0.9

2.3

1.0

   

0.03

0.8

0.9

1.5

0.8

   

0.01

0.7

0.9

1.3

0.5

   
  1. The ITG, W2, and 3D7 strains have both hrp2 and hrp3 genes, HB3 is an hrp3 deletion strain, Dd2 and D10 are hrp2 deletion strains, and 3BD5 is an hrp2 and hrp3 double strain