Abstract

Background: Mucormycosis is an invasive fungal infection that occurs in immunodeficiency patients and belongs to infections caused by mucoral fungi, such as Rhizopus and Rhizomucor. Objectives: This study investigated the identification and detection of the mucor fungus in tissue samples and other samples by the real-time polymerase chain reaction (PCR) method. Methods: This was a cross-sectional-descriptive study. A total of 80 tissue samples were collected from referring patients to diagnose fungi with the opinion of a specialist doctor. After extracting deoxyribonucleic acid (DNA) from the samples, PCR and real-time PCR tests were performed using specific primers for mucor and universal-pan and compared to culture. The results were confirmed by sequencing. Results: In this study, 80 samples were examined. In the PCR method, 74 and 75 cases of fungi were confirmed from the DNA obtained from the colonies and tissues, respectively. By using a specific primer for mucor, 12 patients were reported as positive for mucor. Additionally, 76 and 77 cases of fungi were confirmed in the real-time PCR method from the DNA obtained from the colonies and tissues, respectively, and positive cases were reported. By using specific primers and the real-time PCR test for mucor, 16 cases of mucor were reported from colonies, and 15 cases of mucor were reported positive from tissues. Conclusions: This study showed that real-time PCR and PCR are high-speed and more accurate methods than the culture test in identifying its species and have acceptable results in clinical cases.

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