PROPHYLAXIS OF MALARIA. 
91 
ria. The following table gives the results of these examinations, 
but only includes 117 of the children, as only in this number could 
I obtain the exact age. 
Table II.— Craig's observations at Camp Stotsenburg, Island of Luzon, Philip¬ 
pines. 
Age. 
Number 
examined. 
Number 
infected. 
Percent¬ 
age. 
1 to 5 years. 
40 
30 
75 
5 to 10 years. 
54 
20 
37 
10 to 15 years. 
53 
13 
24 5 
Adults... 
45 
28 
62 2 
Total. 
192 
91 
47.3 
The large percentage of adults showing latent infection in this 
locality was contrary to the reports of Koch, James, and others that 
only the children in malarial localities suffered from latent infec- 
«/ 
tion, but mv observations have since been confirmed bv numerous 
j %j %} 
observers, as is shown in the following tables: 
Table III.— Olltcig's observations in Dutch East Africa. 4 * 
Age. 
Number 
examined. 
Number 
infected. 
Percentage. 
Under 1 year. 
93 
33 
35.4 
1 year to 5 years. 
220 
83 
37.7 
5 years to 15 years. 
971 
109 
11.2 
Adults. 
650 
105 
16.1 
Total. 
1,934 
330 
17.0 
Table IV .—SoreVs observations on the Ivory Coast , Africa . 50 
Age. 
Under 1 year of age... 
1 year to 5 years. 
5 years to 15 years 
Over 15 years (adults) 
Total. 
990 
Number 
Number 
examined. 
infected. 
134 
75 
253 
141 
328 
125 
275 
110 
451 
Percentage. 
56 
56 
38 
43 
44.4 
Table V.— A. PI elm's observations in Kamerun, West Africa . 51 
Age. 
Under 2 years. 
s Between 2 and 5 years. 
Between 5 and 10 years 
Adults. 
Number 
examined. 
Number 
infected. 
Percentage. 
18 
17 
94 
26 
24 
92 
40 
34 
85 
43 
26 
60 
127 
101 
79.5 
Total 
