Curves of Rat and Human Plague.-July 31st, 1903, to August 4th, 1904.
ĮKOWLOON DISTRICT VI. HUNGHOM.
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
WEEKS.
100
96
92
88
84
80 ·
76
72
68
64
60
Percentage of
56
Infected
52
Rats on Total
48
44
caught.
40
36
32
28
24
20
16
12
Number of
My
WEEKS.
I
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
·
*
क
Plague Cases.
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