Higher nasal carriage rate of methicillin-resistant Staphylococcus aureus among dental students who have clinical experience

2016 ◽  
Vol 147 (5) ◽  
pp. 348-353 ◽  
Author(s):  
Yoo Sang Baek ◽  
Seung-Ho Baek ◽  
Yeon-Jee Yoo
Keyword(s):  
Staphylococcus Aureus ◽  
Clinical Experience ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Nasal Carriage ◽  
Dental Students ◽  
Carriage Rate ◽  
Methicillin Resistant

Methicillin-Resistant Staphylococcus aureus Nasal Carriage Rate in Texas County Jail Inmates

2007 ◽  
Vol 13 (4) ◽  
pp. 289-295 ◽  
Author(s):  
Marilyn Felkner ◽  
Rodney E. Rohde ◽  
Ana Maria Valle-Rivera ◽  
Tamara Baldwin ◽  
L. P. (Sky) Newsome
Keyword(s):  
Staphylococcus Aureus ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Nasal Carriage ◽  
Jail Inmates ◽  
Carriage Rate ◽  
County Jail ◽  
Methicillin Resistant ◽  
Texas County

scholarly journals Methicillin Resistant Staphylococcus aureus nasal carriage and associated factors in a rural tertiary hospital in Eastern Uganda: A prospective cross-sectional study

2019 ◽  
Author(s):  
Nobert Thembo ◽  
George Masifa ◽  
Gerald Kamugisha ◽  
Robinah Nabitaka ◽  
Benjamin Akais ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Associated Factors ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Methicillin Resistance ◽  
Phenotypic Expression ◽  
Nasal Carriage ◽  
Referral Hospital ◽  
Carriage Rate ◽  
Regional Referral Hospital ◽  
Methicillin Resistant

Abstract Background: Asymptomatic carriage of Methicillin-Resistant Staphylococcus aureus (MRSA) can predispose the host to a wide array of infections that can be difficult to treat due to antibiotic resistance. To inform public health strategies, the study sought to describe MRSA nasal carriage frequencies and the associated factors concerning nasal carriage among patients attending Mbale Regional Referral Hospital (MRRH). Methods: Nasal swabs were obtained from consented (aged >15years) participants presenting to the hospital for medical care between January and April 2018[L1] . Direct Culture of swabs was performed on blood agar and then incubated at 37℃ for 24 hours. Identification of S. aureus was done using conventional biochemical tests. Phenotypic screening and confirmation of MRSA was done using cefoxitin disc (30µg) test and MICs on the Phoenix M50 instrument respectively. Patient demographic characteristics and the MRSA nasal carriage risk factors were collected using a pre-tested questionnaire. Results: Overall, majority of the participants were in-patients (138, 63.3%) with the proportions of both females and males among the participants being 154/218 (70.6%) and 64/218 (29.3%) respectively. Mean age for both female and male participants was 40.16 (SD± 17.04) years respectively. S. aureus nasal carriage rate among the participants was 22.9% (50/218), with 57.9% (29/50) of the harboured strains phenotypically expressing methicillin resistance (mecA mediated). Phenotypic co-expression with inducible clindamycin resistance and vancomycin resistance was displayed in 45.5% (23/50) and 2% (1/50) of the studied isolates respectively. Colonisation with MRSA did not show any significant relationship with all the studied factors. Conclusion: There was a moderate S. aureus nasal carriage among the participants in Mbale Regional Referral Hospital with a highly noted phenotypic expression of methicillin resistance among the isolated S. aureus strains. The studied factors were not significantly associated with the rate of MRSA nasal carriage. For surveillance purposes to combat future outbreaks, there is a need to do a larger study to better draw generalizable conclusions of carriage in the population. [L1]This is an important statement. I suggest that we reinstatate it if we are still in recommended word count

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.

Low methicillin-resistant Staphylococcus aureus carriage rate among Italian dental students

2015 ◽  
Vol 43 (12) ◽  
pp. e89-e91 ◽  
Author(s):  
Stefano Petti ◽  
Naomy Kakisina ◽  
Catherine M.C. Volgenant ◽  
Giuseppe A. Messano ◽  
Ersilia Barbato ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Dental Students ◽  
Carriage Rate ◽  
Methicillin Resistant

scholarly journals Methicillin Resistant Staphylococcus aureus nasal carriage and associated factors in a rural tertiary hospital in Eastern Uganda: A prospective cross-sectional study

2020 ◽  
Author(s):  
Nobert Thembo ◽  
George Masifa ◽  
Gerald Kamugisha ◽  
Robinah Nabitaka ◽  
Benjamin Akais ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Associated Factors ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Methicillin Resistance ◽  
Phenotypic Expression ◽  
Nasal Carriage ◽  
Referral Hospital ◽  
Carriage Rate ◽  
Regional Referral Hospital ◽  
Methicillin Resistant

Abstract Background: Asymptomatic carriage of Methicillin-Resistant Staphylococcus aureus (MRSA) can predispose the host to a wide array of infections that can be difficult to treat due to antibiotic resistance. To inform public health strategies, the study sought to describe MRSA nasal carriage frequencies and the associated factors concerning nasal carriage among patients attending Mbale Regional Referral Hospital (MRRH). Methods: Nasal swabs were obtained from consented (aged >15years) participants presenting to the hospital for medical care between January and April 2018 [L1] . Direct Culture of swabs was performed on blood agar and then incubated at 37℃ for 24 hours. Identification of S. aureus was done using conventional biochemical tests. Phenotypic screening and confirmation of MRSA was done using cefoxitin disc (30µg) test and MICs on the Phoenix M50 instrument respectively. Patient demographic characteristics and the MRSA nasal carriage risk factors were collected using a pre-tested questionnaire. Results: Overall, majority of the participants were in-patients (138, 63.3%) with the proportions of both females and males among the participants being 154/218 (70.6%) and 64/218 (29.3%) respectively. Mean age for both female and male participants was 40.16 (SD± 17.04) years respectively. S . aureus nasal carriage rate among the participants was 22.9% (50/218), with 57.9% (29/50) of the harboured strains phenotypically expressing methicillin resistance ( mecA mediated). Phenotypic co-expression with i nducible clindamycin resistance and vancomycin resistance was displayed in 45.5% (23/50) and 2% (1/50) of the studied isolates respectively. Colonisation with MRSA did not show any significant relationship with all the studied factors. Conclusion : There was a moderate S. aureus nasal carriage among the participants in Mbale Regional Referral Hospital with a highly noted phenotypic expression of methicillin resistance among the isolated S. aureus strains. The studied factors were not significantly associated with the rate of MRSA nasal carriage. For surveillance purposes to combat future outbreaks, there is a need to do a larger study to better draw generalizable conclusions of carriage in the population. [L1] This is an important statement. I suggest that we reinstatate it if we are still in recommended word count

scholarly journals Nasal Carriage Rate of Methicillin Resistant Staphylococcus aureus among Health Care Workers at a Tertiary Care Hospital in Kathmandu, Nepal

2017 ◽  
Vol 15 (1) ◽  
pp. 26-30 ◽  
Author(s):  
Sabita Khatri ◽  
Narayan Dutt Pant ◽  
Raju Bhandari ◽  
Krishma Laxmi Shrestha ◽  
Chandrika D. Shrestha ◽  
...  
Keyword(s):  
Health Care ◽  
Staphylococcus Aureus ◽  
Antimicrobial Susceptibility ◽  
Health Care Workers ◽  
Healthcare Workers ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Nasal Carriage ◽  
Carriage Rate ◽  
Methicillin Resistant ◽  
Care Workers

Background: Methicillin-resistant Staphylococcus aureus is one of the most common causes of nosocomial infections. Due to its multidrug resistant nature; infections due to Methicillin-resistant Staphylococcus aureus are often very difficult to treat. Colonized health care workers are the important sources of Methicillin-resistant Staphylococcus aureus. The objectives of this study were to determine the nasal carriage rate of Methicillin-resistant Staphylococcus aureus among health care workers at Kathmandu Medical College and Teaching Hospital, Nepal and to assess their antimicrobial susceptibility patterns.Methods: A cross sectional study was conducted among 252 health care workers from July to November 2013. Mannitol salt agar was used to culture the nasal swabs. Antimicrobial susceptibility testing was performed by Kirby- Bauer disc diffusion technique following Clinical and Laboratory Standards Institute guidelines. Methicillin-resistant Staphylococcus aureus strains were confirmed by using cefoxitin disc and by determining the minimum inhibitory concentration of oxacillin by agar dilution method.Results: Of 252 healthcare workers, 46(18.3%) were positive for Staphylococcus aureus among which 19(41.3%) were Methicillin-resistant Staphylococcus aureus carriers. Overall rate of nasal carriage of Methicillin-resistant Staphylococcus aureus was 7.5% (19/252).The higher percentages of lab personnel were nasal carriers of S. aureus (31.6%) and Methicillin-resistant Staphylococcus aureus (10.5%).The percentages of nasal carriage of S. aureus (35.7%) and Methicillinresistant Staphylococcus aureus (14.3%) were highest in the health care workers from post operative department. Higher percentage of Methicillin-resistant Staphylococcus aureus were susceptible toward amikacin (100%) and vancomycin (100%) followed by cotrimoxazole (84.2%).Conclusions: High rates of nasal carriage of S. aureus and Methicillin-resistant Staphylococcus aureus were observed among the healthcare workers, which indicate the need of strict infection control measures to be followed to control the nosocomial infections.

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