Abstract
A study was conducted to determine whether an allergen that has been prepared from a mucoid strain of Brucella abortus triggers a serum antibody response that interferes with the interpretation of serologic tests results. Fifteen cattle seronegative for Brucella antigen were tested with the SDTH test several times. Blood samples were collected weekly and tested with the serum agglutination test and complement fixation test. Results show that some cattle tested seronegative after each of the SDTH tests while other cattle tested weakly positive with the serum agglutination test or the complement fixation test. All seropositive cattle tested seronegative 4–7 weeks after the last SDTH test indicating an antibody response of a transient nature. We conclude that serologic tests results indicating infection are reliable when recorded four weeks after a single SDTH test. If cattle are tested with the SDTH test several times an interval of seven weeks should be observed after the last test to ensure a reliable interpretation of the serologic tests results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
