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Table 2 Number of P. knowlesi cases and their proximity to road and water bodies

From: Spatial distribution of Plasmodium knowlesi cases and their vectors in Johor, Malaysia: in light of human malaria elimination

Variables

Distance (km)

Road

< 1

1.0–2.0

2.1–3.0

3.1–4.0

4.1–5.0

5.1–6.0

≥ 6.1

 Primary1

45

12

4

6

2

1

6

 Secondary2

40

26

9

12

3

4

10

Water

 Perennial3

51

52

25

14

9

19

13

  1. 1Primary road is a well-maintained road in a recognized system of highways
  2. 2Secondary road is an alternative way from the primary road, usually a two-way road for moderate or slow speed drive
  3. 3Perennial water body is a permanent water body that keeps full or flowing throughout the seasons