Sensitivity of the cervical and the caudal fold tuberculin tests with Mycobacterium bovis in infected cattle of Argentina
نویسنده
چکیده
A group of 1,974 cattle from Balcarce, Province of Buenos Aires (Argentina) was tuberculin tested in the neck with 0.1 mg of bovine PPD. In a second test carried out 35 days later, two doses of bovine PPDs from different laboratories and one dose of avian PPD were given to 90 of the cattle having shown a 5 mm or more increase in skin fold thick ness, and to 25 that were to be slaughtered for sanitary reasons other than tuberculosis. Inoculations were made in the neck and the caudal fold.
منابع مشابه
Isolation, Molecular Identification And Genomic Pattern of Mycobacterium Bovis Isolates Collected From Tuberculin-Positive Cattle in Infected Farms of Shiraz
Background: Mycobacterium bovis is the main cause of tuberculosis in cattle. At the global scale and also in Iran, the most frequent currently-in-use method in the detection of infected cattle is tuberculination. Objective: The present study was aimed to improve our genomic knowledge of Mycobacterium bovis population structure in cattle farms of Shiraz. Materials and Methods: Fifty pathologic...
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Tuberculosis is one of the most important infectious diseases worldwide. Mycobacterium bovis is the causative agent of bovine tuberculosis (BTB), an important animal pathogen with public health implications as it is a zoonosis. Currently, the diagnosis of BTB is based on the caudal fold test of the Tuberculin Skin Test (TST). Post-mortem bacterial culture is carried out to confirm the diagnosis...
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Although tuberculin skin testing has been a hallmark of bovine tuberculosis eradication campaigns, it lacks sensitivity, can be confounded by exposure to nontuberculous mycobacteria, and cannot be repeated for 60 days due to desensitization. To overcome these difficulties, an effective whole-blood cellular immunoassay for bovine gamma interferon (IFN-gamma) has been developed. The IFN-gamma tes...
متن کاملComparison of the specificity of cervical and caudal fold tuberculin tests applied to bovines in Uruguay
Responses to bovine PPD's, measured by the increase in skin thickness, ranged between 0 and 2.2 mm in the cervical test, and between 0 and 1.7 mm in the caudal fold test. According to interpretation criteria, all animals proved to be tuberculin-negative. The interval between reactions achieved and the minimal positive value was less for the simple cervical than for the caudal and comparative ce...
متن کاملDevelopment and evaluation of an enzyme-linked immunosorbent assay for use in the detection of bovine tuberculosis in cattle.
As a consequence of continued spillover of Mycobacterium bovis into cattle from wildlife reservoirs and increased globalization of cattle trade with associated transmission risks, new approaches such as vaccination and novel testing algorithms are seriously being considered by regulatory agencies for the control of bovine tuberculosis. Serologic tests offer opportunities for identification of M...
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تاریخ انتشار 2009