42
The following table shows the result of allowing fæces containing many
bacilli to stand at room temperature, 85° F., protected from the sun:—
Name, number, Regiment of patient. |
Date of passing sample of fæces. |
Date of examination of fæces. |
Bacillus typhosus in fæces. |
Sepoy G. Rao, 114th Mahratta Light Infan- try, Poona. |
19th September 1907 | 19th September 1905 | + + + |
20th ditto | + + | ||
21st ditto | + + | ||
23rd ditto | + + | ||
24th ditto | – | ||
26th ditto | – | ||
27th ditto | – | ||
Large numbers of B. Coli. |
The following table shows the duration of life of B. typhosus in normal
European fæces kept at room temperature, 80°F., protected from sun:—
Amount of fæces. | Amount of B. typhosus added. | No. of days after infection of fæces. |
B. typhosus in fæces. |
5 grms. emulsified in normal salt solution. |
One loopful of an emulsion | 5 | + |
Ditto | Ditto | 10 | – |
Ditto | Ditto | 14 | – |
Ditto | Ditto | 21 | – |
The following table shows the duration of life of the B. typhosus in sewage
effluent kept at room temperature (80°F.) and protected from light:—
Source. | Amount of effluent. | Amount of bacillus typhosus added. |
Days after infection of effluent. |
B. typhosus in effluent. |
Meerut septic tank | One test tube full | One loopful | 5 | + |
Ditto | Ditto | Ditto | 17 | – |
Ditto | Ditto | Ditto | 23 | – |