INFLUENCE OF DISEASE UPON MILK 115 
having entered the blood stream, may also be excreted 
in the milk when hemorrhages have occurred in the udder 
tissue. ‘Two instances are reported in which milk from 
cows affected with this disease has produced disease in 
man. One individual was affected with diarrhoea, weak- 
ness, and headache, while the other exhibited symptoms 
resembling typhoid fever. Cows affected with a severe 
or bloody diarrhoea or with a diarrhoea associated with 
fever should be removed from the milk stable, since they 
are likely to infect not only their own milk but also the 
milk of other cows with pathogenic bacteria. The stable 
should be cleaned and disinfected. 
SEPTIC METRITIS 
In acute septic metritis, the milk secretion usually 
ceases with the sudden onset of the fever and the animal 
generally dies in a few days, so that the question of using 
the milk does not often have to be considered. In the 
less acute cases, a large amount of chocolate-colored fluid, 
which is frequently putrid, is excreted from the uterus 
and soils the tail, inner surface of the thighs, and udder, 
as well as the bedding, stall, and suroundings. This fluid 
may contain staphylococci, streptococci, bacilli of the 
colon and paratyphus groups, and putrefactive bacteria. 
These organisms may enter the milk during milking. 
The milk of such animals usually gives a positive reac- 
tion to the alcohol test, indicating that some of the prod- 
ucts of the disease are absorbed from the uterus and 
eliminated through the udder. The foul odor of the 
uterine discharges and the odor of antiseptics which may 
be used in the treatment of such cows will be absorbed 
by the milk. While no cases of disease in man from the 
use of milk from cows affected with septic metritis have 
