The false sero-negativity of brucella standard agglutination test: Prozone phenomenon
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چکیده
منابع مشابه
False Negative Fecal Occult Blood Test: Prozone Effect
Dear editor, the fecal occult blood test is the presently widely used screening laboratory test for colorectal cancer. At present, the test is usually based on an immunological diagnostic principle (1, 2). A false positive fecal occult blood is common and widely mentioned in literature. Nevertheless, the false negative is little mentioned in the paper. Here, the authors discuss the issue of the...
متن کاملRh ANTIBODIES AND THE PROZONE PHENOMENON BY
In 1942 Taylor, Race, Prior, and Ikin reported an anti-Rh serum which failed to agglutinate Rhpositive cells in saline suspension except when diluted. They thought that this prozone was due to antigen and antibody not being present in optimal proportions, and that the mechanism was similar to that of the zones that occur in precipitation reactions. Wiener (1944) described incomplete Rh antibodi...
متن کاملRh antibodies and the prozone phenomenon.
In 1942 Taylor, Race, Prior, and Ikin reported an anti-Rh serum which failed to agglutinate Rhpositive cells in saline suspension except when diluted. They thought that this prozone was due to antigen and antibody not being present in optimal proportions, and that the mechanism was similar to that of the zones that occur in precipitation reactions. Wiener (1944) described incomplete Rh antibodi...
متن کاملEvaluation of the direct agglutination test and the rK39 dipstick test for the sero-diagnosis of visceral leishmaniasis.
The direct agglutination test (DAT) based on a freeze-dried antigen and the rK39 dipstick test were evaluated for the sero-diagnosis of visceral leishmaniasis (VL). The sensitivity and specificity of both tests were determined using sera from confirmed VL patients (n = 21), healthy controls (n = 19) and from patients with other confirmed infectious diseases (n = 42). The DAT had a sensitivity a...
متن کاملMean platelet volume in brucellosis: correlation between brucella standard serum agglutination test results, platelet count, and C-reactive protein.
BACKGROUND Brucellosis, a zoonotic infection, was most widely diagnosed by the Brucella standard serum agglutination test (SAT). No previous publication has demonstrated a correlation between the degree of Brucella SAT agglutination positivity and the severity of brucellosis infection. OBJECTIVE To contribute to the clarification of the relationship between patelets and brucellosis. It is als...
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ژورنال
عنوان ژورنال: Journal of Microbiology and Infectious Diseases
سال: 2011
ISSN: 2146-3158,2146-9369
DOI: 10.5799/ahinjs.02.2011.03.0025