During the 1958-59 testing season, a total of 266 chicken, turkey, and 

 pheasant flocks was tested. Among 975,312 samples tested 0.0001 per- 

 cent was positive, which is a slight decrease over the percentage (0.0009) 

 positive in the previous season. Among all the birds tested only one re- 

 actor was detected in a small fancier's flock. At the close of the season all 

 flocks were classified as negative. This is the first year that no infection 

 was detected among the so-called commercial breeding flocks. 



