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Introduction: Surgical site infection (SSI) is still a common and widespread disease that leads to severe morbidity and death, longer hospital stays, and ultimately higher healthcare costs. P.aeruginosa clinical isolates have been shown to express the virulent gene Exo T, which is significant in the aetiology of infection. The current study aimed to identify the resistance gene Exo T gene in Pseudomonas aeruginosa and to ascertain the prevalence of SSI and associated risk factors among those who had undergone any type of surgical operation. Aim and Objective: To Study the Prevalence, Risk Factors of Surgical Site Infections and the Molecular Characterization of Exo T gene in Drug Resistant Pseudomonas aeruginosa patients at a Tertiary Care Centre, India. Material and Methods: This was a cross-sectional study conducted in a hospital setting over the period of 1 year i.e., August 2022 to August 2023 at a Tertiary Care Centre. All surgically treated adult patients of both sexes who were older than 16 years old were included. Patients who received a second surgery at the same location for any reason, patients receiving immunosuppressant medication, people with immunodeficiency diseases, people currently taking antibiotics, and people with infections elsewhere were all disqualified from participating. If there was signs of a wound infection 48 hours after surgery, the patient was diagnosed with SSI. The DNA was extracted using the Qiagen DNA Extraction kit and the resistant gene Exo T was detected using the conventional PCR. Results: In the present study a total of 170 patients underwent different types of surgeries. The prevalence of SSIs during the study period was 8.2%. SSIs were more common in abdominal surgeries with the Males (64.2%) have a higher risk of getting SSI than females (35.7%). Patients who underwent emergency surgery have a higher risk of getting SSI than those who underwent elective surgery. Those with diabetes had a higher risk of getting SSI than those who were nondiabetics. In the present study it was also observed that Klebsiella pneumoniae (28.5%) was the most common isolate followed by E.coli, Pseudomonas aeruginosa with 21.4%, S.aureus with 14.25% and least for Staphylococcus epidermitidis and Klebsiella oxytoca with 7.14%. It was observed that the site of the infection most common affected was the superficial site with 57.1%. The Molecular characterization confirms that out of 3 Pseudomonas 2 showed the presence of Exo T gene (66.6%). Conclusion: SSIs were more likely to follow abdominal operations. Patients who were male, in the 30-year-old age range, had emergency surgery, had diabetes, and/or had a protracted hospital stay prior to any kind of surgery were more likely to experience surgical site infections (SSIs). It was also found that the proven role of Exo T virulence genes in the pathogenicity of P. aeruginosa would help in treatment and prognosis of Pseudomonas infections. [ABSTRACT FROM AUTHOR]

Introduction: The emergence of strains resistant to methicillin and other antimicrobials has become a major concern, particularly in the hospital settings as MRSA infections are resistant to the majority of conventional antibiotics, possesing serious risks to hospitals and communities all over the world. Aim and Objectives: To study the prevalence and the molecular characterization of Mec A gene in MRSA isolates at a tertiary care centre, Uttar Pradesh, India. Material and Methods: This was a cross sectional study conducted in the Department of Microbiology at a tertiary care centre, for a period of 1 year i.e, August 2022 to August 2023. A total of 682 clinical isolates was studied out of which 200 isolates of S. aureus were identified using the biochemical test from the clinical samples such as pus, swab, blood, wound and urine etc. The different Phenotypic Methods including Cefoxitin and Oxacillin Disc Diffusion test and the genotypic method including MecA gene detection for Methicillin Resistant Staphylococcus aureus isolates was performed. The DNA was extracted using the DNA extraction Qiagen Kit and the Mec A gene was detected by the PCR method. Results: In the present study a total of 42 MRSA isolates were identified by CX, OX, and E-test test phenotypically. The prevalence of MRSA was found to 21%. The maximum number of isolates were observed from the OPD ward with 38.5%. The ratio of the males 28 (66.6%) was more as compared to the females with 14 (33.3%) with the maximum age of 41-50 years being affected the most followed by 31-40 years and least in the age group of 61 years and above. The pus 47.6% was the most common isolate followed by the blood with 23.8% and least for urine and the body fluids 2.3%. All the MRSA isolates were found sensitive to linezolid, Teicoplanin, vancomycin, however all the isolates were recorded resistant with Cefoxitin and Oxacillin. The presence of MecA gene was recorded in all the 42 isolates of MRSA. The presence of MecA gene was confirmed by the PCR followed by sequencing assay. Conclusion: This study provides a clear guidance to effectively diagnose and measure MRSA infections in hospitals and communities. Future research could identify MRSA isolates with the help of the data produced in this investigation. For the control of antibiotic resistance, there is a need for ongoing monitoring and the deployment of effective control techniques where continuous surveillance, awareness of the incidence of MRSA, and upkeep of hygienic standards have been needed to reduce MRSA infections. [ABSTRACT FROM AUTHOR]