Draft of Law for the Prevention of Infeciiods Anemia. 57 



7. In case any healthy horses are made to work in 

 the field^ where the disease prevails, they shall not be 

 worked in the direct sun light in order to avoid the 

 swarming horse flies. 



8. The stable in which a case of the disease has 

 appeared shall be made clean. The floor must be washed 

 either with hot alkali or hot water. The earth under 

 the floor must be removed by digging more than six 

 inches deep and the hollow place shall be filled with 

 clean soil. The floor straw, droppings and the earth 

 containing dung and urine, that have been kept in heaps 

 for two months, may be used as manure. 



9. When diagnosis is established, the patient is 

 preferably to be killed by the advice of the police of- 

 ficers, veterinarians, or inspectors. 



10. The exercise test mentioned in the Regulations 

 Art. 11 is to be performed according to the following 

 indications :— At the outset the subject is made to walk 

 with slow pace for 20-30 miuutes. The time of exercise 

 is gradually to be increased up to 2 hours or more at 

 the end of 2 weeks. The exercise must be done just 

 hard enough to keep the subject perspiring all over 

 the body. 



11. The nature and symptoms of this disease will 

 be briefly described in the following :— 



Nature of the disease. — The disease is of an in- 

 fectious nature, the virus being mainly transmitted from 

 horse to horse by means of horse-flies. It spreads in 

 the pasturing districts, and infection rarely takes place 

 in the stable or when the horses are employed for 

 work. It takes a slow course. The period of incuba- 

 tion varies in a great range ; through experiments it 

 was found to be from 1 to 9 weeks. In a severe case, 

 the course of the disease is acute and death takes place 



