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TUBEX® TF

Product catalog summary

Overview: TUBEX® TF is a rapid diagnostic test for detecting acute typhoid fever, caused by Salmonella typhi. It utilizes Inhibition Magnetic Binding Immunoassay (IMBI®) technology, providing results within 10 minutes and is suitable for use in various laboratory settings, including field conditions.

Clinical Benefits: The test is gaining recognition in endemic regions due to its high sensitivity and specificity. In a study in the Philippines, TUBEX® TF showed a sensitivity of 95% and specificity of 80%, outperforming other antibody detection tests. In Bangladesh, it demonstrated 91% sensitivity and 82% specificity among febrile patients, with specificity increasing to 90% in healthy subjects.

Typhoid Fever Context: Typhoid fever is a serious infectious disease prevalent in Asia, Africa, and Central and South America. It is often misdiagnosed due to non-specific symptoms. Traditional diagnosis requires isolating S. typhi from samples, which is challenging without laboratory facilities. TUBEX® TF offers a reliable alternative.

Product Specifications: The TUBEX® TF kit includes 36 tests, and an additional TUBEX® Wash Buffer is available for analyzing colored serum samples. The test procedure involves a series of steps using reagents and a color scale to interpret results.

Assay Performance: Comparative data shows TUBEX® TF has superior sensitivity and specificity compared to other tests like SD Bioline and Typhidot. It is particularly effective in detecting IgM anti-O9 antibodies.

Assay Procedure: The test involves adding reagents to a reaction well strip, mixing, incubating, and then comparing the color of the supernatant to a color scale to determine the result.

Recommendations: For accurate interpretation of colored serum samples, the use of TUBEX® Wash Buffer is recommended. The test is part of a broader strategy for reliable patient management in bacteriology and oncology, supported by IDL Biotech's certifications.

Catalog excerpts

TUBEX® TF Rapid typhoid detection

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TUBEX® TF is a rapid and sensitive in vitro diagnostic test for detection of acute typhoid fever, a disease caused by Salmonella typhi. The test principle for TUBEX® TF is based on Inhibition Magnetic Binding Immunoassay (IMBI® ) - a semi-quantitative colometric assay. TUBEX® TF can easily be performed in any laboratory setting as well as in the field. A positive TUBEX® TF result, together with typical clinical symptoms, is a strong indication of acute typhoid fever. Typhoid fever is water- and foodborne infectious feverish disease caused by Salmonella typhi. The disease is endemic in large parts...

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® ° Rapid IMBI assay ° Accurate and reliable result within 10 minutes ° For any laboratory environment References: 1. Lim P-L., et al. One-step 2-minute test to detect typhoid-specific antibodies based on a particle separation in tubes. J Clin Microbiol. 1998; 36: 2271-2278. 2. Tam FCH., et al. The TUBEX typhoid test based on particle-inhibition immunoassay detects IgM but not IgG anti-O9 antibodies. J Imm Meth. 2003; 282:83-91. 3. Kawano R.L., et al. Comparison of serological test kits for diagnosis of typhoid fever in the Philippines. J Clin Microbiol. 2007; 45:246-247 4. Rahman M., et al....

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