58 
The large number of instances in AThich the stools and urine of the 
j:>atients were not properly disinfected shows the need of some radical 
action to be taken in regard to this matter. 
Of other measures to prevent the spread of the infection, such as 
treatment of clothing, bedding, dishes, etc., used by the patients, the 
precautions carried out were considered efficient for 79. fairly efficient 
for 96, inefficient for 181. and not determined for 3. 
Of the cases investigated by us in 1906, the treatment of the stools 
and urine of the patients cared for at private residences was as 
follows : 
Treatment of stools and urine: Cases. 
Efficient 145 
Inefficient 2S0 
Of clonbtfnl efficiency 1 .51 
Method not determined 10 
Total — 492 
Thus, of the cases investigated by us in 1906 and in 1907 for the 
large majority cared for at private residences, the treatment with 
disinfectants of the stools and urine and the other measures to pre- 
vent the spread of infection from the patients were decidedly in- 
efficient. 
SUMMARY FOR 1907. 
Six hundred and seventy eases investijjated May I to November 1, 1907 : 
Cases. Percent- 
age. 
Infection contracted out of District of Columbia 174 25.97 
Infection attributed to milk 4S 7.17 
Infection attrfonted to contact 102 15.22 
Accounted for 324 4S.36 
Fnaccounted for 346 . .71.64 
Total 670 100.00 
Or. considering only the o*23 cases, of which 363 undoubtedly and 
160 probably contracted the infection in the District of Columbia, 
we have — 
Infection attribute<I to milk 
Infection attributed to contact. 
Accounted for 
Unaccounted for 
Cases. 
Percent- 
age. 
48 
9.1S 
102 
' 19.50 
150 
28.68 
373 
n.32 
523 
100.00 
Total. 
