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Title

ISOLATION OF HIGH LEVEL MACROLIDE RESISTANT BORDETELLA PERTUSSIS WITHOUT TRANSITION MUTATION AT DOMAIN V IN IRAN

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Abstract

 Background: BORDETELLA PERTUSSIS, as a causative agent of whooping cough, due to the annual rise y of infection cases, failure of prophylaxis and treatment by MACROLIDES, is considered as the new concern in the health care system.Objectives: The main objective of this study was the determination of single nucleotide polymorphisms (SNPs) at domain V, as the main binding site for MACROLIDES, following the identification of high level MACROLIDES resistant B. pertussis.Materials and Methods: Following the identification of 11 recovered B. pertussis isolates, from a total of 1084 nasopharyngeal swabs, by using the biochemical and molecular methods, the activities of erythromycin, azithromycin and clarithromycin antibiotics against the recovered isolates were examined. Subsequently, A-G transition MUTATIONs in domain V were analyzed by molecular techniques, such as Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) and sequencing.Results: After susceptibility testing, one strain was detected as a high level macrolide resistant B. pertussis (Erythromycin=128 mg/mL, Clarithromycin>256 mg/mL). After sequencing and PCR-RFLP methods, transition MUTATIONs in positions 2047 and 2058 of the mentioned domain were not observed.Conclusions: Although previous studies have shown that A-G transition MUTATIONs in 23 SrRNA gene (domain V) are the main reason for the occurrence of high level MACROLIDES resistance in B. pertussis, however, the mentioned single nucleotide polymorphisms (SNPs) have not been detected in our resistant strain. This is the first report of high level macrolide resistant B. pertussis, without SNPs in domain V, in Iran.

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APA: Copy

MIRZAEI, BAHMAN, BAMERI, ZAKARIA, BABAEI, RYHANE, & SHAHCHERAGHI, FERESHTEH. (2015). ISOLATION OF HIGH LEVEL MACROLIDE RESISTANT BORDETELLA PERTUSSIS WITHOUT TRANSITION MUTATION AT DOMAIN V IN IRAN. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), 8(7), 0-0. SID. https://sid.ir/paper/317514/en

Vancouver: Copy

MIRZAEI BAHMAN, BAMERI ZAKARIA, BABAEI RYHANE, SHAHCHERAGHI FERESHTEH. ISOLATION OF HIGH LEVEL MACROLIDE RESISTANT BORDETELLA PERTUSSIS WITHOUT TRANSITION MUTATION AT DOMAIN V IN IRAN. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM)[Internet]. 2015;8(7):0-0. Available from: https://sid.ir/paper/317514/en

IEEE: Copy

BAHMAN MIRZAEI, ZAKARIA BAMERI, RYHANE BABAEI, and FERESHTEH SHAHCHERAGHI, “ISOLATION OF HIGH LEVEL MACROLIDE RESISTANT BORDETELLA PERTUSSIS WITHOUT TRANSITION MUTATION AT DOMAIN V IN IRAN,” JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), vol. 8, no. 7, pp. 0–0, 2015, [Online]. Available: https://sid.ir/paper/317514/en

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