Fowl Typhoid and Fowl Cholera 
37 
DISCUSSION 
This outbreak of avian typhoid is typical of the disease, occurring without 
warning, and with no traceable cause. The foci of infection was one of the 
range pens, where the disease was first recognized, and which sustained the 
highest mortality. The disease spread to two adjacent pens, the topography 
of the ground being favorable for such spread. 
The mortality in this outbreak was 40 birds, or 4.4 per cent. Prompt ad- 
ministration of vaccine, isolation and destruction of all cases, and strict 
sanitary precautions checked the disease. The outstanding feature of this 
outbreak was the fact that the disease broke out among young range birds 
FIG. 15.—HOSPITAL TEMPERATURE CHARTS OF FIELD CASES OF AVIAN TYPHOID 
