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Infectious Disorders - Drug Targets

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ISSN (Print): 1871-5265
ISSN (Online): 2212-3989

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Research Article

Multiplex PCR is a Rapid, Simple and Cheap Method for Direct Diagnosis of M. tuberculosis from Sputum Samples

Author(s): Tarig M.S. Alnour*, Faisel Abuduhier , Mohammed Khatatneh , Fahad Albalawi , Khalid Alfifi and Bernard Silvala

Volume 20, Issue 4, 2020

Page: [495 - 500] Pages: 6

DOI: 10.2174/1871526519666190311165257

Price: $65

Abstract

Introduction: Rapid diagnosis of M. tuberculosis directly from sputum samples is a challenging process. This study aimed to design and evaluate a multiplex-PCR method for direct diagnosis of M. tuberculosis from sputum specimens.

Materials and Methods: 46 suspected tuberculosis patients and 25 apparently healthy individuals were enrolled in the study. Sputa were collected from the study population and processed by cold ZN stain. DNA was extracted from each sample and processed by Multiplex PCR and Genotype Mycobacteria CM.

Results: Out of the 46 Tuberculosis suspected patients, 22 (47.8%) revealed positive Acid fast ba- cilli (AFB), while 19 (41.3%) showed positive by both multiplex PCR and Genotype Mycobacte- ria CM. The overall sensitivity of multiplex PCR and smear microscopy were 100% while the specificity were 100, and 86.3%, respectively.

Conclusion: Multiplex PCR method using two different sets of primers in combination with other diagnostic tools such as X-Rays and smear Microscopy are cheap, rapid and reliable methods for the diagnosis of M. tuberculosis from clinical samples and are able to identify most of the smear positive cases with valuable accuracy.

Keywords: Tuberculosis, mycobacterium tuberculosis, multiplex PCR, genotype mycobacteria CM, Saudi Arabia, specimens.

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