THIRTY-EIGHT-YEAR PULLORUM DISEASE TESTING SUMMARY 



The thirty-eight-year testing summary hsted in table 6 reveals that the 1957-f 

 season has the lowest percentage of positive tests and the highest percentage of biri 

 in nonreacting flocks. It appears hopeful that in the future no infected flocks w 

 be detected during an entire season. 



Table 6. Thirty-Eight-Year Pullorum Disease Testing Summary 



Season 



Flocks 



Total 

 Tests 



Positive 



Tests 

 Percent 



Non- 

 reacting 

 Flocks 



Birds in Non^ 

 reacting Flock 



Number Perce 



ERADICATION OF PULLORUM DISEASE IN NONBREEDING FLOCli 



During the past year all known and suspicious foci of pullorum disease w 

 investigated and measures taken to eradicate the infection from the premises i 

 volved. Flocks on thirteen diff"erent premises were either found infected or wl 



10 



