Non-Reacting and Positive Flocks Classified by Counties 



Table 3 shows that 276 flocks were classified as non-reacting. This is approxi- 

 mately 82 per cent of the total flocks tested, while in the previous season 78 per 

 cent of the tested flocks were non-reacting. In two counties (Suffolk and Hamp- 

 den) all the tested flocks were classified as non-reacting. The remaining counties 

 had decreases in the number of non-reacting flocks. 



Table 3 — Non-Reacting and Positive Flocks Classified by Counties 



Barnstable.. 

 Berkshire.... 



Bristol 



Essex 



Franklin 



Hampden..., 

 Hampshire. 

 Middlesex... 



Norfolk 



Plymouth... 



Suffolk 



Worcester... 



Totals. 



Barnstable. 

 Berkshire.... 



Bristol 



Dukes 



Essex 



Franklin 



Hampshire. 

 Middlesex.. 



Norfolk 



Plymouth... 

 Worcester... 



Totals. 



The number of positive flocks was 59, representing approximately 17 per cent 

 of the total flocks tested. The total number of birds in these flocks was 

 58,019, or approximately 20 per cent of the total tested birds. The previous 

 season 100 positive flocks were reported, or approximately 22 per cent of 

 the total tested flocks. Barnstable, Berkshire, and Hampshire Counties have 

 increases in positive flocks over the previous season. 



While the percentage of positive flocks has been steadily decreasing, the results 

 show that ample infection still e.xists without mentioning the untested flocks in this 

 State. Considering this fact, one should appreciate that pullorum disease is more 

 prevalent in Massachusetts than other diseases, such as tuberculosis, fowl cholera, 

 fowl typhoid, and infectious laryngotracheitis. Some poultrymen are inclined 

 to divert their eradication efforts from pullorum disease to other diseases, especially 



