DISEASES AND PESTS OF FOWLS 



human beings, but the weight of evidence 

 is against this conclusion. 



Treatment. Diphtheria is extremely in- 

 fectious. It is best to kill the first cases at 

 once. If the bird is of particular value, it 

 may be isolated and the patches on the 

 throat swabbed with 50% hydrogen per- 

 oxide or 5% creolin, with a small bit of 

 cotton wool wound around a stick. If 

 great care is exercised, 20% carbolic acid 

 or 20% creolin may be painted on the 

 patches, but neither should be allowed to 

 touch the normal skin. Burn the swabs. 

 Treat accompanying roupy symptoms as 

 recommended under roup. 



The term canker is also applied to cer- 

 tain spots or growths that occur on the 

 throat. These are not in any way associ- 

 ated with diphtheritic roup, or any danger- 

 ous, contagious disease, and are due to in- 

 jury or to an unhealthy condition of the 

 mucous membrane. 



