Table 1

Epidemic start years in Sri Lanka in relation to prevailing ENSO phases between: (a) 1870 and 1927. (b) 1928 and 2000. (c) 1928 and 1980 and (d) 1981 and 2000.

(a) 1870–1927


Epidemics

Non-epidemic

Total


El Niño

7

9

16

Non-Niño

2

40

42

Total

9

49

58


(b) 1928–2000


Epidemics

Non-epidemic

Total


El Niño

4

14

18

Non-Niño

7

58

65

Total

11

72

83


(c) 1928–1980


Epidemics

Non-epidemic

Total


El Niño

1

11

12

Non-Niño

6

35

41

Total

7

46

53


(d) 1981–2000


Epidemics

Non-epidemic

Total


El Niño

3

3

6

Non-Niño

1

23

24

Total

4

26

30


Zubair et al. Malaria Journal 2008 7:140   doi:10.1186/1475-2875-7-140

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