NON-REACTING AND POSITIVE FLOCKS CLASSIFIED BY COUNTIES 



Table 4 shows that in 12 counties a total of 213 non-reacting flocks, representing 

 251,778 birds, were established at the close of the testing season. At the end of 

 the season 31 infected flocks, representing 29,346 birds, were credited to 8 counties. 

 No reactors were detected among tested flocks in Barnstable, Plymouth and 

 Suffolk Counties. Middlesex, Bristol and Worcester Counties led in the number 

 of non-reacting flocks, while Norfolk, Middlesex and Worcester Counties had the 

 largest number of birds in non-reacting flocks. Of the total birds tested 89.5 

 percent were in the non-reacting flocks. Of the 251,778 birds in the negative 

 flocks 86.5 percent were in the 100 percent tested flocks. 



Table 4. -Non-Reacting and Positive Flocks Classified by Counties 



County 



100% Tested 



Partially Testec 



Non-Reacting Flocks 



Barnstable 



Berkshire 



Bristol 



Essex 



Franklin 



Hampden 



Hampshire 



Middlesex 



Norfolk 



Plymouth 



Suffolk 



Worcester 



Totals 



Berkshire 



Bristol 



Essex 



Franklin 



Hampden 



Hampshire 



Middlesex 



Worcester 



Totals 19 



These data show progress in eradication as compared with the results of 1933-34, 

 when four-fifths of the total tested birds were found in non-reacting flocks. It 

 is encouraging that the amount of infection is gradually being reduced and that 

 the poultrymen are demonstrating that it is possible not only to eradicate in- 

 fection but also to maintain flocks free from the infection. This task will become 

 less difficult as the bulk of infection decreases and poultrymen become better 

 fortified to guard against the introduction of infection through difi^erent channels. 



