42 
DEATH RATES FROM TYPHOID AND CERTAIN OTHER DISEASES 
IN THE DISTRICT OF COLUMBIA. 
The following table gives, by years, the death rate per 100,000 in 
the District of Columbia for certain infectious diseases: 
Death rates per 100,000 in the District of Columbia for certain diseases. 
Year. 
Pneumonia. 
Pulmonary 
tubercu-' 
losis. 
Searlet 
fever. 
Diarrhea and enteric disease. 
Typhoid 
fever. 
Under 2 
years. 
2 years 
and over. 
Total, all 
ages. 
1900 
137.7 
27S-9 
4.4 
131.9 
26.2 
15S.2 
74.1 
1901 
1-30.5 
271.0 
3.7 
114. S 
27.4 
142.2 
56. 4 
1902 
156. 5 
224.6 
2.0 
107.7 
30.5 
13S.2 
74.0 
1903 
179.6 
249.2 
.6 
90.6 
30.2 
120. S 
45.0 
1904 
175-2 
262.3 
3.5 
101. S 
20. S 
122.6 
43. S 
1905a 
1611 
2-55.6 
3.4 
104.3 
23.5 
127. S 
43.9 
1906 
154.1 
239.2 
2.5 
97.4 
23.6 
121.0 
49.3 
1907 
163.5 
226.9 
.6 
9S.6 
2-3.7 
122.7 
34.5 
190S 
150.2 
20S.9 
2.6 
97. 5 
is.s 
116.3 
36.5 
a Water filtered October 1905. 
It will be observed that, with the exception of pulmonary tiiber- 
cidosis, the death rate of which has gradually but progressively 
declined since 1904, there has been but little difference m the death 
rate from these diseases siuce the water supply of the city has been 
filtered (October, 1905). Some decrease in the death rate from 
diarrheal diseases is noted. The average rates for the three years 
1903-1905 was 124, and for 1906-1908 was 120. 
The death rate from all causes per 1,000 of population m the 
District of Columbia has been as follows: 
Year. 
Death rate 
per 1,000. 
1900 - - 
20.61 : 
1901 
20.19 , 
1902 - 
IS. 95 
1903 
19.09 1 
1904 
19.61 i 
1905 
19.20 ' 
(Water supply filtered since October, 1905.) 
1906 
19.35 
1907 
19.25 
190S ! 
IS. 03 : 
For the three years 1900 to 1903 the average of the annual death 
rates from aU causes was 19.92 per 1,000. For the three years 
1903 to 1906 the average of the annual rates was 19.30; for the 
three years 1906 to 1909 — ^that is, after the filtration of the public 
