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Sadidi, Roya, Ajoudanifar, Hatef, Ghasem Zadeh-Moghadam, Hamed, Azimian, Amir. (1403). The Emergence of Linezolid-Resistant Staphylococcus Epidermidis in the COVID-19 Hospitalized Intubated Patients in North Khorasan, Iran. سامانه مدیریت نشریات علمی, 49(5), 332-338. doi: 10.30476/ijms.2024.99744.3214
Roya Sadidi; Hatef Ajoudanifar; Hamed Ghasem Zadeh-Moghadam; Amir Azimian. "The Emergence of Linezolid-Resistant Staphylococcus Epidermidis in the COVID-19 Hospitalized Intubated Patients in North Khorasan, Iran". سامانه مدیریت نشریات علمی, 49, 5, 1403, 332-338. doi: 10.30476/ijms.2024.99744.3214
Sadidi, Roya, Ajoudanifar, Hatef, Ghasem Zadeh-Moghadam, Hamed, Azimian, Amir. (1403). 'The Emergence of Linezolid-Resistant Staphylococcus Epidermidis in the COVID-19 Hospitalized Intubated Patients in North Khorasan, Iran', سامانه مدیریت نشریات علمی, 49(5), pp. 332-338. doi: 10.30476/ijms.2024.99744.3214
Sadidi, Roya, Ajoudanifar, Hatef, Ghasem Zadeh-Moghadam, Hamed, Azimian, Amir. The Emergence of Linezolid-Resistant Staphylococcus Epidermidis in the COVID-19 Hospitalized Intubated Patients in North Khorasan, Iran. سامانه مدیریت نشریات علمی, 1403; 49(5): 332-338. doi: 10.30476/ijms.2024.99744.3214

The Emergence of Linezolid-Resistant Staphylococcus Epidermidis in the COVID-19 Hospitalized Intubated Patients in North Khorasan, Iran

Iranian Journal of Medical Sciences
مقاله 7، دوره 49، شماره 5، مرداد 2024، صفحه 332-338    اصل مقاله (293.35 K)
نوع مقاله: Brief Report(s)
شناسه دیجیتال (DOI): 10.30476/ijms.2024.99744.3214
نویسندگان
Roya Sadidi1؛ Hatef Ajoudanifar1؛ Hamed Ghasem Zadeh-Moghadam2؛ Amir Azimian* 2
1Department of Biology, College of Basic Sciences, Damghan Branch, Islamic Azad University, Damgan, Iran
2Department of Pathobiology and Laboratory Sciences, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
چکیده
The present study aimed to investigate secondary bacterial infections among patients infected with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Coagulase-negative Staphylococci can infect immunocompromised patients. Linezolid resistance among Staphylococcus epidermidis is one of the most critical issues. 
In 2019, 185 SARS-CoV-2-positive patients who were admitted to North Khorasan Province Hospital (Bojnurd, Iran), were investigated. Patients having positive SARS-CoV-2 reverse transcriptase real-time polymerase chain reaction (RT-PCR) test results, who had a history of intubation, mechanical ventilation, and were hospitalized for more than 48 hours were included. 
After microbiological evaluation of pulmonary samples, taken from intubated patients with clinical manifestation of pneumonia, co-infections were found in 11/185 patients (5.94%) with S. epidermidis, Staphylococcus aureus, and Acinetobacter baumani, respectively. Remarkably, seven out of nine S. epidermidis isolates were linezolid resistant. Selected isolates were characterized using antimicrobial resistance patterns and molecular methods, such as Staphylococcal cassette chromosome mec (SCCmec) typing, and gene detection for ica, methicillin resistance (mecA), vancomycin resistance (vanA), and chloramphenicol–florfenicol resistance (cfr) genes. 
All of the isolates were resistant to methicillin, and seven isolates were resistant to linezolid. Nine out of 11 isolated belonged to the SCCmec I, while two belonged to the SCCmec IV. It should be noted that all patients had the underlying disease, and six patients had already passed away.
The increasing linezolid resistance in bacterial strains becomes a real threat to patients, and monitoring such infections, in conjunction with surveillance and infection prevention programs, is very critical for reducing the number of linezolid-resistant Staphylococcal strains.
کلیدواژه‌ها
Staphylococcus epidermidis؛ COVID-19؛ Drug resistance؛ Microbial, linezolid؛ Vancomycin
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مراجع
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