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Table 2 Characteristics of P. knowlesi parasites in naturally acquired human infections.

From: Morphological features and differential counts of Plasmodium knowles i parasites in naturally acquired human infections

 

Malaria pigment (%)

*Chromatin dots (%)

**Number of parasites in single erythrocyte (%)

Band form trophozoite

Appliqué form

Patient code

Clumped

Scattered

Single

Double

Triple

1

2

3

  

KH369

81.5

18.5

71.6

25.8

2.6

92.4

6.8

0.8

Yes

Yes

KH364

75.0

25.0

92.2

7.8

0

74.9

20.6

4.5

Yes

Yes

KH370

n

n

88.9

11.1

0

100.0

-

-

Yes

-

KH412

100.0

0

62.5

37.5

0

100.0

-

-

Yes

Yes

KH433

n

n

85.7

14.3

0

100.0

-

-

-

-

KH431

5.6

94.4

89.3

10.7

0

98.2

1.8

-

Yes

-

KH421

16.7

83.3

81.3

18.7

0

100.0

-

-

-

-

KH422

0

100

0

0

0

100.0

-

-

Yes

-

KH328

0

100

85.7

14.3

0

100.0

-

-

-

-

KH399

33.3

66.7

100.0

0

0

100.0

-

-

-

-

  1. *based on early trophozoites or ring form stages, and these were absent in patient KH422.
  2. **based on early and late trophozoite stages.
  3. n = no pigment because no mature trophozoites were observed.