102 
Dealer No.— 
Number cases typhoid 
per 100,000 gallons 
milk sold. 
Remarks. 
1906. 
1907. 
1908. 
1 
18.2 
7.1 
10.4 
2 
21.5 
23.4 
10.2 
3 
16.6 
7. 1 
a 5.8 
a Milk pasteurized summer of 1908. 
b Outbreak October 2-21, 1906; 32 cases, 
c Milk pasteurized summer of 1908. 
4 
b 52.5 
21.6 
CIO. 1 
5 
22.0 
7.2 
16.8 
6 
23.7 
15.6 
13.3 
7 
35.0 
13.6 
9.1 
8 
36.6 
17.1 
18.8 
9 
35.2 
8.9 
13.4 
10 
6.7 
5.4 
7.3 
Bottles sterilized and milk pasteurized during all three 
years. 
11 
18.2 
8.2 
d 35. 1 
d Outbreak September 24 to October 24, 1908; 19 cases. 
12 
12.7 
11.2 
2.3 
13 
ell3.9 
6.5 
14.0 
e Outbreak July 6 to August 20, 1906; 35 cases. 
14 
22.2 
8.6 
15 
/6.3 
1 Comparatively small dealer. 
16 
13.7 
8.1 
9.5 
17 
18.4 
5.2 
0.0 
Bottles sterilized and special milk from one farm during all 
three years. 
18 
28.2 
4.7 
3.4 
44 
26.7 
13.0 
46 
29.3 
8.3 
59 
187.5 
Outbreak September 24 to October 22, 1908; 33 cases. 
71 
5.7 
163 
g282.9 
25.0 
g Outbreak June 8 to August 17, 1907; 28 cases. 
It should be noted that the ratio for dealer No. 10, who has steril- 
ized bottles and pasteurized milk during all three years, has been con- 
sistently low. 
One distinct milk outbreak ® occurred this year (1908). This was 
among the customers of milk dealers Nos. 11 and 59 (see Chart No. 
9). There were in the course of this outbreak 54 cases with onsets 
of illness from September 24 to October 24. Two of these cases were 
reported subsequent to October 31 and, therefore, are not included 
in the number covered by our period of investigation (cases reported 
from May 1 to November 1). 
Fifty-two, or about 10 per cent of the 542 cases investigated 
occurred in the course of this one milk outbreak and were attributed 
to infected milk. 
Thirty-three of the cases were among the customers of milk dealer 
No. 59 and 21 among the customers of milk dealer No. 11. 
« “A milk-borne outbreak of typhoid fever traced to a bacillus carrier,” by L. L. 
Lumsden and William C. Woodward, Journ. Am, Med. Assn., vol. 52, March 6, 1909, 
pp. 749-752. 
