95 



may he used. A solution of corrosive siiblimnle (1 part 

 to J, 000 of water) is also sufficient, but must be used 

 with gieat care. Iwersen recommendg petroleum in 

 this disease and advises that a drop of this substance 

 shall be placed in the nasal passage of the diseased 

 fowl, and that the diseased membranes be treated with 

 light applications applied with a small brush. If the 

 nose is stopped up, peroxide of h\'drogeu, diluted with 

 an equal amount of water, may be injected with a glass 

 and rubber medicine dropper. If the dropper has a 

 bent point, the medicine may be squirted into the back 

 of the nose through the openings in the roof of the 

 mouth. 



Roup or diphtheria may be prevented by avoiding 

 unsanitary conditions, by enforcing cleanliness, disin- 

 fecting frequently and preventing the introduction of 

 foreign fowls into the flock until they have been kept 

 isolated long enough to make sure that they are 

 healthy. 



Cases have been reported from time to time in which 

 it lias been claimed that diphtheria of fowls has been 

 conveyed to people and vice versa. Recent investiga- 

 tions, however, indicate that this disease in man and 

 birds is caused by different organisms, and that the 

 probability of tracsmission is not very great. 



With reference to this matter. Dr. V. A. Moore 

 writes as follows:* "Altho-ugh the number of reported 

 cases of the transmission of diphtheria to the human 

 species and vk-e versa is small in comparison with the 

 extent of the disease in poultry, the evidence that such 

 a transmission is possible is quite sufficient to discour- 

 age the careless handling of diseased fowls. It is 

 quite a common practice, usually in the rural districts. 



♦Bulletin No. 8, V. S. Depiartmpnt of Agriculture, 1S9.T. 



