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Results of Vaccine Treatment 



The majority of the birds treated were owned by people in 

 the immediate neighborhood of Columbus. They would in- 

 variably send to the hospital to be treated a few of the most 

 severe cases and as the results were satisfactory permission 

 was obtained to treat the entire flocks. The birds (severe 

 cases) treated at the hospital were given extra attention (local 

 surgical and antiseptic treatment), while those treated on the 

 owners' premises received only the usual care from the owner 

 following the treatment. With one exception all flocks were 

 given but one treatment, a few birds with severe cases, amount- 

 ing to approximately .5%, were sent to the hospital for a fur- 

 ther treatment. The exact mortality rate can not be given, ex- 

 cept in the University flock, as the owner would state satisfac- 

 tory results even if a few of the most severe cases had died. 



This list shows a complete record as taken from our Clinic 

 book of all cases treated from 1910 to 1916, a period of six 

 years. 



1910-1911 



Five cases treated at the clinic. These were the first cases 

 given vaccine treatment. 

 Results: Three recovered. 



1911-1912 



Flock No. 1, 168 birds; owner, Mr. M. Joyce, Columbus, Ohio. 



Results: Owner reported rapid improvement and stated: "It 

 improves their appetite." 



Flock No. 2, 69 birds; owner, Mr. C. F. Frazey, Columbus, 

 Ohio. 



Results: Good. A few required second treatment. Appar- 

 ently healthy in three weeks after being treated. 



Flock No. 3, 75 birds; owner, Mr. W. F. Sherman. 



Results: These birds had been "out of condition" for some 

 time and not laying. Only a few cases showed lesions. They 

 showed rapid improvement and as many as ususal were laying 

 in January, five weeks after treatment. A neighbor's flock in a 

 similar condition not treated remained in bad condition and 

 were destroyed later in the winter. 



Flock No. 4, 51 birds; owner, Mr. F. Hendershott, Colum- 

 bus, Ohio. Condition similar to No. 3. 



Results: Same. Three birds died soon after treatment. 



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