POULTRY DISEASES AND THEIR TREATMENT 



CHICKEN POX OR SORE HEAD 



An infectious disease that causes considerable loss among 

 chickens and young birds in n^arm climates 



Symptoms. Small, scabby, wart-like 

 growths and eruptions on the head, espe- 

 cially on the comb and the wattles and 

 around the eyes in bad cases extending to 

 the lids and even the mouth. Chickens and 

 young birds are most commonly attacked 

 by this disease, which spreads rapidly. 



FIG. 10. CHICKEN POX 



Cause. The specific organism has not 

 been definitely determined. Chicken pox 

 may be started by the introduction of an 



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