(90 days for cervidae) before the CC test can be administered. If the CC test indicates 

 that the animal is a reactor, all further herd testing is conducted by Federal or State 

 regulatory veterinarians. In most areas of the United States, a caudal-fold response 

 rate of 3 percent or greater should be expected. Improper injection or observation 

 techniques may result in true suspects' or reactors' being missed. 



See the Bovine TB Eradication Uniform Methods and Rules for more information. 

 The most current version of this VS-published document is posted at 

 <http://www.aphis.usda.gov/oa/pubs/bovtbumr/bovtbcontents.html>. 



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