Climate Change, Health, and Costs
Figure 2 Monthly Rainfall and Number of Cases of Dengue Fever in the Philippines,
1990–1999
900
1,600
800
1,400
1,200
600
1,000
500
800
400
No. of cases
Monthly rainfall (mm)
700
600
300
400
200
200
0
0
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
Jan
Apr
Jul
Oct
100
1990
1991
1992
1993
1994
1995
Rainfall
1996
1997
1998
1999
Dengue
Apr = April, Jan = January, Jul = July, mm = millimeter, no. = number, Oct = October.
Sources: Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) and Department of Health,
Philippines.
Figure 3 Monthly Rainfall and Number of Cases of Dengue Fever in the Philippines,
2008–2009
500
400
No. of cases
Monthly rainfall (mm)
600
300
200
100
0
1
6
11
16
21
26
31
36
41
46
51
56
61
66
71
76
81
86
91
96 101
Week
Rainfall
Dengue
mm = millimeter, no. = number.
Sources: Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) and Department of Health,
Philippines.
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