Is the gamma interferon assay in cattle influenced by multiple tuberculin injections?
Can Vet J
; 50(3): 270-4, 2009 Mar.
Article
in En
| MEDLINE
| ID: mdl-19436478
ABSTRACT
Along with other developed countries, Canada is interested in adopting the gamma interferon (IFN-gamma) assay to test for bovine tuberculosis (TB). This study compared results of using the IFN-gamma assay in a large number of field-tested cattle in Manitoba, some previously tested with a caudal fold test (CFT) only, and others injected with tuberculins for both a CFT and a comparative cervical test (CCT). Parallel testing further compared the IFN-gamma assay and CCT results with the confirmed TB status of the animal (culture, histopathologic examination, polymerase chain reaction). Results from IFN-gamma assays did not differ following the CFT versus CFT and CCT injections. Parallel testing demonstrated an apparent higher prevalence of tuberculosis for the IFN-gamma assay versus CCT, which will assist in earlier removal of exposed animals and, ultimately, prevent populations from becoming infected.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Tuberculin
/
Tuberculosis, Bovine
/
Tuberculin Test
/
Interferon-gamma
/
Mycobacterium bovis
Type of study:
Diagnostic_studies
/
Risk_factors_studies
Limits:
Animals
Country/Region as subject:
America do norte
Language:
En
Journal:
Can Vet J
Year:
2009
Document type:
Article
Affiliation country:
Canada