Benha University

ريهام نجاح رجب ابراهيم

أستاذ مساعد

كلية الطب البشري الميكروبيولوجيا والمناعة الطبية

Prevalence and multidrug resistance pattern of β-lactam resistant Streptococcus pyogenes isolated from nasopharyngeal infections

• 2022
العودة
معلومات البحث
المؤلفون El Shaimaa E. Mohammed Azza S. Demerdash Riham N. Ibrahim Mahmoud M. Hazaa Rasha Y. Abd Elghaffar Amira E. Sehim
الكلمات المفتاحية Not Available
المجلة العلمية Not Available
الناشر Not Available
المجلد Not Available
العدد Not Available
الصفحات Not Available
publication.type Local
رابط البحث Not Available
المواد المرفقة Not Available
الملخص
Group A Streptococcus (GAS), commonly known as Streptococcus pyogenes, is one of the top ten infectious causes of death globally. Increased antibiotic resistance is the main cause of streptococcal infection treatment failure. Therefore, this study was conducted to evaluate the occurrence, antimicrobial resistance, and genetic characterization of S. pyogenes isolated from different patients. A total of 60 pharyngitis and tonsillitis throat swabs were obtained. Only 7 isolates (11.6%) were confirmed to be S. pyogenes. The highest prevalence of S. pyogenes was obtained from children, boys (26.6%) followed by adults (males) (16.6%) while the lowest prevalence was recovered from girls (11.7%). On the other hand, no infection was recorded in the case of females. All S. pyogenes isolates were susceptible to ampicillin-sulbactam, ciprofloxacin, chloramphenicol, doxycycline, meropenem, and tetracycline. While 100% showed resistance to amoxicillin-clavulanic acid, cefotaxime, and cephradine followed by ceftriaxone (71%) and cefuroxime (71%). Based on the multidrug-resistance (MDR) profile, a total of 6 out of 7(85.7%) S. pyogenes isolates were resistant to 3 or more of β-lactam antibiotics. The PCR assay revealed that the blaTEM, blaZ, bla IMP, and blaCTX genes were detected in 57.1%, 28.5%, 57.1%, 42.8%, 15%, 11.3%, and 5.6% of the isolates. To the best of our knowledge, this is the global study about these beta lactamase genes in Streptococcus pyogenes
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