Nasal Carriage Rate and Antimicrobial Resistance Profiles of MethicillinResistant Staphylococcus Aureus (MRSA) among Health Care Workers in Tanta University Hospital

2020 ◽  
Vol EJMM29 (4) ◽  
pp. 1-7
Author(s):  
Marwa S. Taha ◽  
Eman A. Younis ◽  
Eman E. Hegazy
Keyword(s):  
Infection Control ◽  
Nasal Carriage ◽  
University Hospital ◽  
Resistant Organism ◽  
University Hospitals ◽  
Carriage Rate ◽  
Mannitol Salt Agar ◽  
Vulnerable Patients ◽  
Nasal Swabs ◽  
History Of

Background: MRSA is the most commonly known antimicrobial-resistant organism in hospitals worldwide. Objectives: This study aimed to detect the prevalence of MRSA carriage and its antibiogram among HCWs in Tanta University hospitals to improve infection control and preventive measures. Methodology: 223 nasal swabs from HCWs were inoculated onto Mannitol salt agar. Detection of MRSA was performed phenotypically using cefoxitin disc diffusion test on Muller–Hinton agar plates. Confirmation of MRSA was done by determining minimum inhibitory concentration (MIC) of oxacillin by using E Test Strips. Results: Amongst the HCWs, 88 doctors and 135 nurses were randomly selected. The overall frequency of S. aureus nasal carriage was 129/223. Of the 129 S. aureus isolates, (17%) were MRSA. Internal medicine had a high proportion of MRSA positive (36.4%). (63.6%) of the MRSA positive HCWs had a history of using antibiotics during the past 3 months. A high frequency (77.3%) of MRSA was detected among nurses. (50%) HCWs with 5:10 years of working experience were colonized with MRSA. Conclusion: Multi-drug resistant organisms such as MRSA are a major public health challenge. Colonized HCWs are asymptomatic carriers and can transmit MRSA to vulnerable patients. To control the transmission of MRSA in hospitals, multidisciplinary efforts are recommended to implement and improve infection control policies.

Nasal Carriage ofStaphylococcus aureusAmong Patients Receiving Allergen-Injection Immunotherapy: Associated Factors and Quantitative Nasal Cultures

2001 ◽  
Vol 22 (12) ◽  
pp. 741-745 ◽  
Author(s):  
Stefano Bassetti ◽  
Donnie P. Dunagan ◽  
Ralph B. D'Agostino ◽  
Robert J. Sherertz
Keyword(s):  
Atopic Dermatitis ◽  
Independent Predictor ◽  
Statistical Significance ◽  
Nasal Carriage ◽  
University Hospital ◽  
Carriage Rate ◽  
Age And Gender ◽  
Desensitization Therapy ◽  
Second Year ◽  
And Gender

AbstractObjective:To compare the prevalence of nasalStaphylococcus aureuscarriage among outpatients receiving allergen-injection immunotherapy with the prevalence among healthy controls and to determine predictors of nasalS aureuscarriage.Design:Survey.Setting:Allergy clinic of a university hospital.Participants:A volunteer sample consisting of 45 outpatients undergoing desensitization therapy and 84 first- and second-year medical students.Results:The nasalS aureuscarriage rate was significantly higher among patients (46.7%) than among students (26.2%;P=.019). In a multivariate model adjusted for age and gender, the presence of atopic dermatitis or eczema was the only independent predictor of nasal Saureuscarriage (odds ratio [OR], 4.4; 95% confidence interval [CI95], 1.2-16.0;P=.02). The only other participant characteristic associated with nasalS aureuscarriage was immunotherapy with allergen injections (OR, 1.98; CI95, 0.7-6.0), but this association did not reach statistical significance (P=.23). The probability of nasalS aureuscarriage was 88.9% for patients receiving allergen injections and having atopic dermatitis or eczema, and 36.1% for patients receiving allergen injections without atopic dermatitis or eczema.Conclusions:Patients undergoing desensitization have a higher nasal carriage rate ofS aureus.However, factors other than the regular use of needles, and in particular abnormalities related to the atopic constitution of these patients, may predispose this population forS aureuscarriage.

scholarly journals Nasal Carriage and Methicillin Resistance of Staphylococcus Aureus Among Schoolchildren in Sana’a City, Yemen

2020 ◽  
Author(s):  
Arwa Mohammed Othman ◽  
Belques Sharaf Al-Huraibi ◽  
Rowa Mohammed Assayaghi ◽  
Huda Zaid Al-Shami
Keyword(s):  
Staphylococcus Aureus ◽  
Hospital Admission ◽  
Methicillin Resistance ◽  
Positive Culture ◽  
Nasal Carriage ◽  
Cross Sectional Study ◽  
High Morbidity ◽  
Carriage Rate ◽  
Cross Sectional ◽  
Nasal Swabs

Abstract Background: Staphylococcus aureus (S. aureus) is a frequent cause of serious health problems with high morbidity and mortality. The risk of S. aureus infections is increased with the emergence of methicillin-resistant S. aureus (MRSA). The aim of this study is to determine the nasal carriage rate of both S. aureus and MRSA among schoolchildren in Sana’a city.Methods: This is a cross-sectional study conducted from January 2018 to May 2020. Five hundred and eighty eight students were enrolled. Nasal swabs were collected from each student for culturing and methicillin susceptibility testing. Results: Out 588 nasal swab, 536 yielded bacterial growth. Students with positive culture were 271(51%) males and 265(49%) females. Their age ranged from 5 to 19 years old with mean age and standard deviation equaled to 13.3±3.5 years. S. aureus was isolated from 129 (24%) students whereas the overall prevalence of MRSA was 8(1.5%). S. aureus was significantly recovered from students at age group 10-14 years (χ2 = 7.02, p = 0.03), females than males (OR= 1.96, χ2 = 10.75, p = 0.001), and students who were admitted into hospitals (OR= 1.6, χ2 = 4.89, p = 0.03). Nevertheless, there were no significant differences between MRSA carriage and students’ age (χ2 = 2.3, p = 0.32), gender (OR= 1.02, χ2 = 0.001, p = 0.63), and hospital admission (OR= 1.4, χ2 = 0.25, p = 0.62). Conclusions: The prevalence of MRSA is low among schoolchildren in Sana’a city. Age, gender and previous hospital admission were statistically associated with nasal carriage of S. aureus but not MRSA nasal carriage.

scholarly journals Nasal staphylococci in children – a follow-up study

1982 ◽  
Vol 88 (3) ◽  
pp. 433-437 ◽  
Author(s):  
M. L. Burr ◽  
C. H. L. Howells
Keyword(s):  
Nasal Carriage ◽  
First Year ◽  
Carriage Rate ◽  
Follow Up Study ◽  
South Wales ◽  
Nasal Swabs ◽  
One Year ◽  
First Year Of Life ◽  
Marked Tendency

SummaryNasal carriage of Staphylococcus aureus was studied in a cohort of infants born to the residents of two towns in South Wales. The children were followed up to the age of 5 years, nasal swabs being taken annually after a more detailed survey during the first year. The carriage-rate of S. aureus reached a minimum of 10–15% at one year and then rose steadily to 41% at five years. From the age of two years about 90% of the organisms isolated were resistant to penicillin. There was a marked tendency for children to carry the same strains from year to year, but carriage during the first year of life did not predict carriage at the age of five.

scholarly journals Use of LOINC and SNOMED CT with FHIR for Microbiology Data

2021 ◽  
Author(s):  
Eugenia Rinaldi ◽  
Julian Saas ◽  
Sylvia Thun
Keyword(s):  
Infection Control ◽  
Data Sharing ◽  
Information Exchange ◽  
International Standards ◽  
University Hospital ◽  
Use Case ◽  
Snomed Ct ◽  
University Hospitals ◽  
Related Data ◽  
The University

Infectious diseases due to microbial resistance pose a worldwide threat that calls for data sharing and the rapid reuse of medical data from health care to research. The integration of pathogen-related data from different hospitals can yield intelligent infection control systems that detect potentially dangerous germs as early as possible. Within the use case Infection Control of the German HiGHmed Project, eight university hospitals have agreed to share their data to enable analysis of various data sources. Data sharing among different hospitals requires interoperability standards that define the structure and the terminology of the information to be exchanged. This article presents the work performed at the University Hospital Charité and Berlin Institute of Health towards a standard model to exchange microbiology data. Fast Healthcare Interoperability Resources (FHIR) is a standard for fast information exchange that allows to model healthcare information, based on information packets called resources, which can be customized into so-called profiles to match use case- specific needs. We show how we created the specific profiles for microbiology data. The model was implemented using FHIR for the structure definition, and the international standards SNOMED CT and LOINC for the terminology services.

scholarly journals Nasal Carriage and Methicillin Resistance of Staphylococcus aureus among Schoolchildren in Sana’a City, Yemen

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Arwa Mohammed Othman ◽  
Belques Sharaf Al-Huraibi ◽  
Rowa Mohammed Assayaghi ◽  
Huda Zaid Al-Shami
Keyword(s):  
Staphylococcus Aureus ◽  
Hospital Admission ◽  
Methicillin Resistance ◽  
Positive Culture ◽  
Nasal Carriage ◽  
Cross Sectional Study ◽  
High Morbidity ◽  
Carriage Rate ◽  
Cross Sectional ◽  
Nasal Swabs

Background. Staphylococcus aureus (S. aureus) is a frequent cause of serious health problems with high morbidity and mortality. The risk of S. aureus infections is increased with the emergence of methicillin-resistant S. aureus (MRSA). This study aims to determine the nasal carriage rate of both S. aureus and MRSA among schoolchildren in Sana’a city. Methods. This is a cross-sectional study conducted from January 2018 to May 2020. Five hundred and thirty-six students were enrolled. Their age ranged from 5 to 19 years with the mean age and standard deviation equal to 13.3 ± 3.5 years. Nasal swabs were collected from each student for culturing and methicillin susceptibility testing. Results. Students with positive culture were 271 (51%) males and 265 (49%) females. S. aureus was isolated from 129 (24%) students whereas the overall prevalence of MRSA was 8 (1.5%). S. aureus was significantly recovered from students at the age group of 10–14 years (χ2 = 7.02; p = 0.03 ), females than males (OR = 1.96; χ2 = 10.75; p = 0.001 ), and students who were admitted into hospitals (OR = 1.6; χ2 = 4.89; p = 0.03 ). Nevertheless, there were no significant differences between MRSA carriage and students’ age (χ2 = 2.3; p = 0.32 ), gender (OR = 1.02; χ2 = 0.001; p = 0.63 ), and hospital admission (OR = 1.4; χ2 = 0.25; p = 0.62 ). Conclusions. The prevalence of MRSA is low among schoolchildren in Sana’a city. Age, gender, and previous hospital admission were statistically associated with nasal carriage of S. aureus but not MRSA nasal carriage.

scholarly journals Nasal carriage of methicillin-resistant Staphylococcus aureus among medical students of Belgrade University

2013 ◽  
Vol 141 (5-6) ◽  
pp. 349-353 ◽  
Author(s):  
Ivana Cirkovic ◽  
Slobodanka Djukic ◽  
Dragana Vukovic ◽  
Goran Stevanovic ◽  
Milena Svabic-Vlahovic ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Medical Students ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Sccmec Type ◽  
Nasal Carriage ◽  
Phenotypic Characteristics ◽  
Carriage Rate ◽  
Mannitol Salt Agar ◽  
Methicillin Resistant ◽  
Mrsa Strains

Introduction Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) present the growing problem in the whole world. Carriage of MRSA is most frequent in the nose, and medical students come in contact both with patients and different persons in the community. Therefore, they may be significant for the transmission of MRSA from hospitals to out- of-hospital communities and vice versa. Objective. The aim of this study was to establish the carriage rate among students of the second, third and fourth year of study at the School of Medicine in Belgrade and to analyze their genotypic and phenotypic characteristics. Methods. In total 533 nasal samples were taken. The samples were incubated in Trypcase-soy broth supplemented with 6.5% NaCl, and thereafter the swabs were inoculated on mannitol salt agar supplemented with 2 ?g/mL of oxacillin. The presence of nuc, mecA and Panton-Valentine leukocidin genes was examined by PCR. The characteristics of the MRSA strains were determined using: antibiotic susceptibility testing by Vitek2 System, SCCmec, agr typing and MLST. Results. MRSA was isolated from two of 533 investigated samples (0.37%). MRSA were isolated from the students of the second and third year of study. Profiles of strains were: ST80 (SCCmec type IV, agr type 3) and ST152 (SCCmec type V, agr type 1). MRSA strains were multiresistant. Conclusion. The nasal carriage rate of MRSA in population of medical students of the first year of study in Belgrade is low. Genotypic and phenotypic characteristics of MRSA strains indicate their community origin. MLST typing revealed that isolates belong to ST80 and ST152.

scholarly journals Epidemiology and infection control of carbapenem resistant Acinetobacter baumannii and Klebsiella pneumoniae at a German university hospital: a retrospective study of 5 years (2015–2019)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Patrick Chhatwal ◽  
Ella Ebadi ◽  
Frank Schwab ◽  
Stefan Ziesing ◽  
Ralf-Peter Vonberg ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Klebsiella Pneumoniae ◽  
Infection Control ◽  
Hospital Stay ◽  
Acinetobacter Baumannii ◽  
Control Measures ◽  
University Hospital ◽  
Resistant Bacteria ◽  
Carbapenem Resistant ◽  
History Of

Abstract Background Carbapenem resistant (CR) Klebsiella pneumoniae (Kp) and Acinetobacter baumannii (Ab) are emerging multidrug resistant bacteria with very limited treatment options in case of infection. Both are well-known causes of nosocomial infections and outbreaks in healthcare facilities. Methods A retrospective study was conducted to investigate the epidemiology of inpatients with CR Kp and CR Ab in a 1500-bed German university hospital from 2015 to 2019. We present our infection control concept including a weekly microbiologic screening for patients who shared the ward with a CR Kp or CR Ab index patient. Results Within 5 years, 141 CR Kp and 60 CR Ab cases were hospitalized corresponding to 118 unique patients (74 patients with CR Kp, 39 patients with CR Ab and 5 patients with both CR Ab and CR Kp). The mean incidence was 0.045 (CR Kp) and 0.019 (CR Ab) per 100 inpatient cases, respectively. Nosocomial acquisition occurred in 53 cases (37.6%) of the CR Kp group and in 12 cases (20.0%) of the CR Ab group. Clinical infection occurred in 24 cases (17.0%) of the CR Kp group and in 21 cases (35.0%) of the CR Ab group. 14 cases (9.9%) of the CR Kp group and 29 cases (48.3%) of the CR Ab group had a history of a hospital stay abroad within 12 months prior to admission to our hospital. The weekly microbiologic screening revealed 4 CR Kp cases caused by nosocomial transmission that would have been missed without repetitive screening. Conclusions CR Kp and CR Ab cases occurred infrequently. A history of a hospital stay abroad, particularly in the CR Ab group, warrants pre-emptive infection control measures. The weekly microbiologic screening needs further evaluation in terms of its efficiency.

scholarly journals Total Hip Arthroplasty in Femoral Neck Fractures in Zagazig University Hospitals

2020 ◽  
Vol 11 (2) ◽  
pp. 2747-2757
Author(s):  
Mohamed Mohamed Ibrahim Ashour ◽  
El-Sayed El-Etewy Ahmed Soudy ◽  
Mohamed El-Sadek Attia ◽  
Mohamed Ismail Abd-Elrhman Kotb
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Hip Arthroplasty ◽  
Femoral Neck Fractures ◽  
University Hospital ◽  
High Morbidity ◽  
University Hospitals ◽  
Total Hip ◽  
Fracture Neck Femur ◽  
History Of

Femoral neck fractures are common in the geriatric population and are associated with high morbidity and mortality. The worldwide incidence of hip fractures is expected to approach 6.26 million by 2050. Studies showed that the functional outcome and pain scoring improved in cases of femoral neck fracture treated by total hip arthroplasty than any other methods. This study was performed on 18 patients presented with history of fracture neck femur who were admitted to orthopedic department, Zagazig university hospital in the period between January 2019 to December 2019. All cases in this prospective study were treated by THA. Prior to commencing the study, ethical clearance was taken from the Zagazig University hospitals and informed consent was obtained from all patients and their guardians before participation in the study. All the patients were operated through Harding’s approach. Both cemented and un-cemented types of arthroplasty were performed. Functional outcomes of hip were evaluated at 3 months and 6 months after surgery. The studied age ranged between 18-62 years with mean ± SD 41.5±12.4 and (44.4%) of them females and (55.6 %) males. (55.6%) of studied group were from rural areas and (44.4%) of studied group were from urban. Regarding occupation (38.8%) of the studied cases were clerk, (11.1%) were hand worker, (16.6%) were farmer, (5.5%) were student, (22.2%) were house wife and (5.5%) were teacher. 66.7 % of studied group had history of previous fixation. Previous operative fixation for fracture N F were 50 % Cannulated screw, 25 % DHS and 25% IMN. Regarding cause of lesion most frequent were failure of other fixation for N F fracture (66.7%) then acute fracture N F associated with OA (22.2%) and neglected N F fracture (11.1%).

scholarly journals Efflux MexAB-Mediated Resistance in P. aeruginosa Isolated from Patients with Healthcare Associated Infections

Pathogens ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 471
Author(s):  
Rania M. Kishk ◽  
Mohamed O. Abdalla ◽  
Abdullah A. Hashish ◽  
Nader A. Nemr ◽  
Nihal El Nahhas ◽  
...  
Keyword(s):  
Antimicrobial Agents ◽  
Efflux Pump ◽  
Suez Canal ◽  
University Hospital ◽  
Resistant Organism ◽  
Healthcare Associated Infections ◽  
University Hospitals ◽  
Binding Interactions ◽  
Adequate Treatment ◽  
Healthcare Associated

Today, one of the most important challenges for physicians is the adequate treatment of infections due to multidrug resistant organism (MDR). Pseudomonas aeruginosa is considered an opportunistic organism causing different types of healthcare associated infections (HAIs). We aimed to investigate the MDR and pandrug resistance (PDR) rate in P. aeruginosa in our region and detect efflux-pump mexAB genes and the proposed binding interactions of five different categories of antimicrobial agents with the mexB pump. A total of 180 non-duplicated P. aeruginosa strains were isolated from patients with HAIs in the Suez Canal University Hospital. Phenotypically, minimum inhibitory concentration (MIC) was done for all MDR and PDR strains before and after addition of efflux pump inhibitor carbonyl cyanide m-chlorophenyl hydrazone (CCCP). Molecular detection of mexA and mexB genes was done by using polymerase chain reaction (PCR). Most of the isolated strains (126 strains) were MDR (70%); only 10 samples (5.5%) were PDR. MexA and mexB genes were detected in 88.2% (120 strains) and 70.5% (96 strains) of stains, respectively. All PDR strains (10 stains) carried both mexA and mexB genes. Efflux mexAB genes were detected in all MDR and PDR strains (136 strains). Molecular modeling studies were performed to investigate the modes of intermolecular binding interactions between the antimicrobial agents and mexB key amino acids that resulted in MDR and PDR. The current study reported high prevalence of MDR and PDR P. aeruginosa in patients with HAIs in the Suez Canal University Hospitals.

Staphylococcus aureus nasal colonization among Vietnamese adults: prevalence, risk factors and antibiotic susceptibility profile

MedPharmRes ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 21-31
Author(s):  
Nguyen Phan ◽  
Hien Pham ◽  
Thuc Nguyen ◽  
Hoai Nguyen
Keyword(s):  
Risk Factors ◽  
Staphylococcus Aureus ◽  
Antibiotic Susceptibility ◽  
Nasal Carriage ◽  
Resistance Rate ◽  
High Rate ◽  
Weight History ◽  
Potential Risk Factors ◽  
History Of ◽  
Vietnamese Community

Staphylococcus aureus (S. aureus) has long been recognized as an important human pathogen causing many severe diseases. It is also a part of human normal flora with its ecological niche in the human anterior nares. This study focused on screening S. aureus nasal carriage in community and its relationship to human physiological and pathological factors which have not been studied in Vietnam previously. Two hundred and five volunteers in Ho Chi Minh City from 18 to 35 and over 59 years old both male and female participated in the study. Result showed that the prevalence of S. aureus nasal carriage in southern Vietnamese community was relatively low, only 11.2% (23/205), much lower than that in other international reports on human S. aureus. In addition, nasal carriage of the older age group (> 59 years old, 13.7%) was higher than that of younger age (18-35 years old, 10.4%). Other potential risk factors such as gender, career, height, weight, history of antibiotic usage, daily nasal wash, use of nasal medication sprays, acne problems, smoking and nasal problems showed no significant impact on S. aureus carriage. The obtained S. aureus nasal isolates were all sensitive to vancomycin. Lincomycin and tetracycline had low resistance rate with 4.3 % and 17.4 %, respectively. However, the isolates showed particularly high rate of multidrug resistance (54.2%) In summary, our data provided researchers an overview on S. aureus nasal carriage and antibiotic susceptibility profile of the community- isolated S. aureus in Vietnam. This would serve as valuable information on assessing risk of community-acquired S. aureus infections.

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