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Table 2 Evidence of clustering of sub-patent and patent, uPCR-confirmed Plasmodium infections in households in study villages at baseline surveys M0

From: Clustering of malaria in households in the Greater Mekong Subregion: operational implications for reactive case detection

All

Households

All

%

%

Pf

%

%

Pv

%

%

P. spp.

%

%

1686

100%

1686

100%

1686

100%

1686

100%

1. Households with only sub-patent infections

Households with any infection

561

33

100

191

11

100

405

24

100

197

12

100

Households with a single infected member

359

21

64

140

8

73

303

18

75

166

10

84

Households with two or more infected members

202

12

36

51

3

27

102

6

25

31

2

16

2. Households with only patent infections

Households with any infection

56

3

100

76

5

100

40

2

100

5

0

100

Households with a single infected member

46

3

82

64

4

84

36

2

90

0

0

0

Households with two or more infected members

10

1

18

12

1

16

4

0

10

5

0

100

3. Households with mixed patent and sub-patent infections

Households with any infection

76

5

100

15

1

100

30

2

100

3

0

100

Households with a single infected member

0

0

0

0

0

0

0

0

0

0

0

0

Households with two or more infected members

76

5

100

15

1

100

30

2

100

3

0

100

Total number of households with Plasmodium infection

Households with any infection

693

41

100

282

17

100

475

28

100

205

12

100

Households with a single infected member

405

24

58

204

12

72

339

20

71

171

10

83

Households with two or more infected members

288

17

42

78

5

28

136

8

29

34

2

17

Total sub-patent infection (including households with both a/symptomatic infections)

Households with any infection

637

38

100

206

12

100

435

26

100

200

12

100

Households with a single infected member

359

21

56

140

8

68

303

18

70

166

10

83

Households with two or more infected members

274

16

44

66

4

32

132

8

30

34

2

17

Total patent infection (including households with both a/symptomatic infections)

Households with any infection

132

8

100

91

5

100

70

4

100

8

0

100

Households with a single infected member

46

3

35

64

4

70

36

2

51

0

0

0

Households with two or more infected members

86

5

65

27

2

30

34

2

49

8

0

100

  1. Pf P. falciparum or mixed infection, Pv P. vivax or mixed infection