ANTHRAX 599 



Prognosis. The cutaneous form usually runs a more 

 favorable course, apparently recovering in one to three 

 weeks, when the nodules become dry and scale off. The 

 mucous membrane form is less favorable, the mortality 

 varying from 10 to 50 per cent., depending on the care and 

 sanitary surroundings. 



Aside from the actual number that die we find there is 

 considerable loss resulting from the chronic effects. After 

 the disappearance of all visible lesions the birds do not 

 seem to regain their former good condition for months. 

 Egg production is far below normal, and young birds have 

 their growth checked. 



Treatment. There have been a great many drugs recom- 

 mended in the treatment of this disease, and so far none 

 of them have proved very satisfactory. Daily treatment 

 of individual birds is a tedious and laborious task, especially 

 where large flocks are affected. 



The lesions, whether on the skin or in the mouth, should 

 be washed with antiseptics, boric acid solution (2 per cent.), 

 potassium permanganate (0.25-1 per cent.), or any other 

 equally efficient antiseptic. The deposits should be removed 

 with a curette or dull knife before applying the antiseptic. 



Vaccine. Vaccination has proved very satisfactory in this 

 disease. One c.c. is administered subcutaneously, and in 

 severe cases it should be repeated in four to six days. 



Prevention. All newly acquired birds should be examined 

 and isolated for at least ten days before allowing them to 

 come in contact with the regular flock. 



As soon as the disease is recognized, it is recommended 

 that all birds be vaccinated immediately to check it. 

 Healthy flocks and those intended for exhibition purposes 

 may be vaccinated to establish immunity. This has proved 

 very satisfactory. The immunity established will last for 

 at least six months to one year. 



ANTHRAX. 



This disease is essentially found in large animals. (See 

 other works.) 



