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Table 4 Classification of Plasmodium species

From: Comparison of two malaria multiplex immunoassays that enable quantification of malaria antigens

Sample type

Species

Number of samples

Q-Plex

xMAP

% Positive agreement

Classification (number of positive)

% Positive agreement

Classification (number of positive)

Whole blood

P. falciparum

15

100

Pf (15)

100

Pf (15)

P. vivax

10

80

Pv (8)

100

Pv (10)

P. malariae

10

0

Pf (3)

0

–

P. knowlesi

5

0

Pv (3)

0

Pv (3)

DBS

P. falciparum

15

33.3

Pf (5)

100

Pf (15)

P. vivax

10

30

Pv (3)

80

Pv (8)

P. malariae

10

0

Pf (2)

0

–

P. knowlesi

5

0

–

0

–

  1. The established cutoff values were used to determine positive and negative values for HRP2, PfLDH, and PvLDH antigens. P. falciparum and P. vivax infections were identified by test results with concentrations of HRP2 or PfLDH, and PvLDH that were above the cutoff