642 IOWA DEPARTMENT OF AGRICULTURE 



produced this outbreak in Cedar county. I presume the government man 

 will get through with Mitchell county today, and I believe the proper time 

 has elapsed, and that Mitchell will be released; and I hope by this time 

 next week, Greene will be in the same position. 



C. G. Cockerill: Is the Matthews farm at Tipton the only place 

 where serums 44 and 41 have caused the disease, that you know of ? 



Doctor Gibson: That is the only one we know of, and that is 

 why we are especially alarmed about 44 and 41. 



Mr. Cockerill : Is there any other state that you know of where 

 that serum was the cause? 



Doctor Gibson: The last letter I had from the state veter- 

 inarian of Indiana, said they were in very good shape, and thought 

 they had the disease under control, until all of a sudden came a 

 serious outbreak caused by serum. 



Mr. Cockerill: We don't believe that this serum or virus has 

 caused the foot and mouth disease, and I am satisfied that some 

 of the best veterinarians in Iowa are of the same opinion as I am. 

 I think the very greatest harm has been done against our hog 

 cholera vaccination by all this talk about the serum, and that it 

 has caused even more loss than the foot and mouth disease. I have 

 vaccinated for two years as Doctor Stange knows, and have had 

 the best luck with a lot of hogs. We have a county agent there, 

 and one day you said to me that it might be possible you would 

 have to go over all this herd that he has caused to be vaccinated — 

 over 10,000 head — and I doubt if he has lost one per cent where 

 they were vaccinated. It is a good thing for the meat producers 

 of Iowa to know that there is success in vaccination. 



Doctor Gibson : I would not for anything have it understood 

 here that I was casting any reflection upon the county agent in 

 Greene county or any other county. I said we might have to ex- 

 amine all the hogs treated, or examine all the records. The county 

 agent, at my request, sent me a record of every bit of serum and 

 virus that he had procured and distributed in Greene county. We 

 found two or three instances where he furnished for the same man 

 that the other serum was furnished for, but the dates were so far 

 apart that it didn't cause any alarm. 



Mr. Thompson : Concerning Matthews, I am personally ac- 

 quainted with him and his son. Have you ever investigated to 

 find out whether Mr. John Matthews had not been in Chicago with 

 a shipment of cattle, and might have brought that trouble from 

 the Chicago stockyards? 



