146 SPECIAL EQUINE THERAPY 



immediately be isolated. Cases of this disease are pre- 

 sumed to be contagious for variable periods of time even 

 after all symptoms of the disease have disappeared. This 

 period of time probably never exceeds ten days. 



New horses, especially green horses, added to the mem- 

 bers of stables are always to be considered as infected. 

 They should receive a prophylactic dose of anti-influenza 

 serum or influenza bacterins, and isolated for a period of 

 ten days. If the disease has not made its appearance at 

 the end of this time the animal may be considered free 

 from the infection. 



