417
The walls of the houses are often hollow and thus afford excellent cover for rats while the ground behind retaining walls appears to frequently form a regular warren for these animals.
The following Table shews the houses in First. Second and Third and High Streets within the densely overcrowded area mentioned above divided into blocks according to whether they are built of blue or red bricks and whether they have or have not retaining walls. The numbers of plague cases which have occurred
in the is also shewn.
Block.
Red or Blue Brick
Has Retaining
Wall.
Has Basement.
No. of Plague Cases.
Walls.
2-10 First Street,
Blue.
Yes.
No.
12-24
Red.
5
97
23
""
26-48
Blue.
99
23
77
50-56
Red.
19
..
>>
"
62-68
Blue.
Yes.
27
70-76A 76B-78A
多身
33
ነ
22
"
Red.
27
78
Blue.
No.
.0
35
97
**
80-82 86-100
""
*
""
37
وو
19
""
1-55 57-61
No.
Yes.
13
""
Red.
2-4A Second Street,
Blue.
Yes.
No.
6-20
Red.
*
33
*
22-32
Blue.
45
*
34-46
"
"
>>
""
48-72
Red.
>>
51
"
74-94
Blue.
19
55
"
1-23
Red.
No.
Yes.
"
??
25-55
Blue.
""
"
61-71
15
59
55
73
99
"
75-77
Red.
55
25
87-89
PARA A
15
No.
Yes.
""
""
""
91-109
Blue.
"
21
2-8 Third Street,
10-90
19
"
1-19
"
21-33
35-61
63-99
{)
2
รา
Yes.
""
6
15
"
No.
2
39
"
Red.
Blue.
Yes.
3 9
27
No.
לי
No.
"
10-38 High Street,
Yes.
17
1-19
$
**
19
21-33
**
"
35-49
Red.
*
51-73
Blue.
22
No.
No.
75-77
"
22
79-97
""
Red. Blue.
"J
No.
Yes.
"
-"
Yes.
22
220000000*-==+~ 30 20 10 20 NOOCNCONHCHO0344000
1
1
3
3
2
An analysis of the Table shews the following result:
Blue brick houses,
Red
""
Houses with retaining walls,
.45 cases.
.18
.35
19
without retaining walls,
.28
19
with basements,
.28
57
"
without basements,
.35
11
It would appear therefore that premises affording most shelter to rats are more likely to be infected than others.
Preventive Measures.
The measures adopted in the attempt to mitigate the ravages of the epidemic have been essentially the same in 1904 as in previous years. There have been some slight modifications as follows.
The floor or floors in a house inhabited by the infected person only is dis infected by the coolies employed by the Department, instead of the whole house as formerly,
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