Methicillin and multidrug resistant pathogenic Staphylococcus aureus associated sepsis in hospitalized neonatal infections and antibiotic susceptibility

Diabetic foot infections (DFIs) are a significant health issue and a common complication among patients with diabetes. To develop antibiotic therapy for these high-risk patients, the current study evaluates the scope of DFIs and identifies the causing microbes. It also measures spectrum and antibiotic susceptibility of the pathogens isolated from adults with DFIs in Saudi Arabia. To achieve the study objectives, a cross-sectional study was implemented and the baseline characteristics for 44 patients with DFIs were defined. Optimal aerobic and anaerobic microbiological techniques were utilized to culture specimens isolated from infected foot ulcers. The standard microbiological methods were employed to identify the bacterial isolates and antibiotic susceptibility testing was conducted following the procedures of the Clinical and Laboratory Standards Institute (CLSI). Results showed that 12 microorganisms were isolated from the participants’ diabetic foot ulcers. Staphylococcus Aureus was ranked first because it appeared in 29 (65.9%) cases. Streptococcus Agalactiae was ranked second and multi-microbial infections were also found. Most of the organisms were susceptible to Vancomycin, Ciprofloxacin, and Cefalexin, but they were resistant to Methicillin, Gentamicin, and Ampicillin antibiotics. Staphylococcus Aureus was most sensitive to Ciprofloxacin, while it was resistant to Methicillin. About 10% of the isolates were multidrug-resistant. The study concludes that while Vancomycin should be used empirically for Gram-positive isolates, Ciprofloxacin can be taken into consideration for most of the Gram-negatives aerobes. Based on including various microorganisms and the advent of multidrug-resistant strains, proper culture and sensitivity testing are necessary prior to the empirical therapy.

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Nasopharyngeal carriage, spa types and antibiotic susceptibility profiles of Staphylococcus aureus from healthy children less than 5 years in Eastern Uganda

BMC Infectious Diseases ◽

10.1186/s12879-019-4652-5 ◽

2019 ◽

Vol 19 (1) ◽

Cited By ~ 1

Author(s):

David Patrick Kateete ◽

Benon B. Asiimwe ◽

Raymond Mayanja ◽

Brian Mujuni ◽

Freddie Bwanga ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Low Income ◽

Antibiotic Susceptibility ◽

Multidrug Resistant ◽

Healthy Children ◽

Beta Lactam ◽

Carriage Rate ◽

High Level ◽

Susceptibility Profiles ◽

Eastern Uganda

Abstract Background Staphylococcus aureus carriage is a known risk factor for staphylococcal disease. However, the carriage rates vary by country, demographic group and profession. This study aimed to determine the S. aureus carriage rate in children in Eastern Uganda, and identify S. aureus lineages that cause infection in Uganda. Methods Nasopharyngeal samples from 742 healthy children less than 5 years residing in the Iganga/Mayuge Health and Demographic Surveillance Site in Eastern Uganda were processed for isolation of S. aureus. Antibiotic susceptibility testing based on minimum inhibitory concentrations (MICs) was determined by the BD Phoenix™ system. Genotyping was performed by spa and SCCmec typing. Results The processed samples yielded 144 S. aureus isolates (one per child) therefore, the S. aureus carriage rate in children was 19.4% (144/742). Thirty one percent (45/144) of the isolates were methicillin resistant (MRSA) yielding a carriage rate of 6.1% (45/742). All isolates were susceptible to rifampicin, vancomycin and linezolid. Moreover, all MRSA were susceptible to vancomycin, linezolid and clindamycin. Compared to methicillin susceptible S. aureus (MSSA) isolates (68.8%, 99/144), MRSA isolates were more resistant to non-beta-lactam antimicrobials –trimethoprim/sulfamethoxazole 73.3% (33/45) vs. 27.3% (27/99) [p < 0.0001]; erythromycin 75.6% (34/45) vs. 24.2% (24/99) [p < 0.0001]; chloramphenicol 60% (27/45) vs. 19.2% (19/99) [p < 0.0001]; gentamicin 55.6% (25/45) vs. 25.3% (25/99) [p = 0.0004]; and ciprofloxacin 35.6% (16/45) vs. 2% (2/99) [p < 0.0001]. Furthermore, 42 MRSA (93.3%) were multidrug resistant (MDR) and one exhibited high-level resistance to mupirocin. Overall, 61 MSSA (61.6%) were MDR, including three mupirocin and clindamycin resistant isolates. Seven spa types were detected among MRSA, of which t037 and t064 were predominant and associated with SCCmec types I and IV, respectively. Fourteen spa types were detected in MSSA which consisted mainly of t645 and t4353. Conclusions S. aureus carriage rate in healthy children in Eastern Uganda is high and comparable to rates for hospitalized patients in Kampala. The detection of mupirocin resistance is worrying as it could rapidly increase if mupirocin is administered in a low-income setting. S. aureus strains of spa types t064, t037 (MRSA) and t645, t4353 (MSSA) are prevalent and could be responsible for majority of staphylococcal infections in Uganda.

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Nasopharyngeal carriage, spa types and antibiotic susceptibility profiles of Staphylococcus aureus from healthy children less than 5 years in Eastern Uganda

10.21203/rs.2.10945/v4 ◽

2019 ◽

Author(s):

David Kateete ◽

Benon B Asiimwe ◽

Raymond Mayanja ◽

Brian Mujuni ◽

Freddie Bwanga ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Low Income ◽

Antibiotic Susceptibility ◽

Multidrug Resistant ◽

Healthy Children ◽

Beta Lactam ◽

Spa Typing ◽

Carriage Rate ◽

Eastern Uganda ◽

Spa Types

Abstract Background: Staphylococcus aureus carriage is a known risk factor for staphylococcal disease. However, the carriage rates vary by country, demographic group and profession. This study aimed to determine the S. aureus carriage rate in children in Eastern Uganda, and identify S. aureus lineages that cause infection in Uganda. Methods: Nasopharyngeal samples from 742 healthy children less than 5 years residing in the Iganga/Mayuge Health & Demographic Surveillance Site in Eastern Uganda were processed for isolation of S. aureus. Antibiotic susceptibility testing based on minimum inhibitory concentrations (MICs) was determined by the BD PhoenixTM system. Genotyping was performed by spa typing. Results: The processed samples yielded 144 S. aureus isolates (one per child) therefore, the S. aureus carriage rate in children was 19.4% (144/742). Thirty one percent (45/144) of the isolates were methicillin resistant (MRSA) yielding a carriage rate of 6.1% (45/742). All isolates were susceptible to rifampicin, vancomycin and linezolid. Moreover, all MRSA were susceptible to vancomycin, linezolid and clindamycin. Compared to methicillin susceptible S. aureus (MSSA) isolates (68.8%, 99/144), MRSA isolates were more resistant to non-beta-lactam antimicrobials –trimethoprim/sulfamethoxazole 73.3% (33/45) vs. 27.3% (27/99) [P<0.0001]; erythromycin 75.6% (34/45) vs. 24.2% (24/99) [P<0.0001]; chloramphenicol 60% (27/45) vs. 19.2% (19/99) [P<0.0001]; gentamicin 55.6% (25/45) vs. 25.3% (25/99) [P=0.0004]; and ciprofloxacin 35.6% (16/45) vs. 2% (2/99) [P<0.0001]. Furthermore, 42 MRSA (93.3%) were multidrug resistant (MDR) and one exhibited high-level resistance to mupirocin. Overall, 61 MSSA (61.6%) were MDR, including three mupirocin and clindamycin resistant isolates. Seven spa types were detected in MRSA, of which t037 & t064 were predominant and associated with SCCmec types I & IV, respectively. Fourteen spa types were detected in MSSA, of which t645 & t4353 were predominant. Conclusions: S. aureus carriage rate in healthy children in Eastern Uganda is high and comparable to rates for hospitalized patients in Kampala. The detection of mupirocin resistance is worrying as it could rapidly increase if mupirocin is administered in a low-income setting. S. aureus strains of spa types t064, t037 (MRSA) and t645, t4353 (MSSA) are prevalent and could be responsible for majority of staphylococcal infections in Uganda.

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Nasopharyngeal carriage, spa types and antibiotic susceptibility profiles of Staphylococcus aureus from healthy children less than 5 years in Eastern Uganda

10.21203/rs.2.10945/v5 ◽

2019 ◽

Author(s):

David Kateete ◽

Benon B Asiimwe ◽

Raymond Mayanja ◽

Brian Mujuni ◽

Freddie Bwanga ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Low Income ◽

Antibiotic Susceptibility ◽

Multidrug Resistant ◽

Healthy Children ◽

Beta Lactam ◽

Carriage Rate ◽

High Level ◽

Eastern Uganda ◽

Spa Types

Abstract Background: Staphylococcus aureus carriage is a known risk factor for staphylococcal disease. However, the carriage rates vary by country, demographic group and profession. This study aimed to determine the S. aureus carriage rate in children in Eastern Uganda, and identify S. aureus lineages that cause infection in Uganda. Methods: Nasopharyngeal samples from 742 healthy children less than 5 years residing in the Iganga/Mayuge Health and Demographic Surveillance Site in Eastern Uganda were processed for isolation of S. aureus. Antibiotic susceptibility testing based on minimum inhibitory concentrations (MICs) was determined by the BD PhoenixTM system. Genotyping was performed by spa and SCCmec typing. Results: The processed samples yielded 144 S. aureus isolates (one per child) therefore, the S. aureus carriage rate in children was 19.4% (144/742). Thirty one percent (45/144) of the isolates were methicillin resistant (MRSA) yielding a carriage rate of 6.1% (45/742). All isolates were susceptible to rifampicin, vancomycin and linezolid. Moreover, all MRSA were susceptible to vancomycin, linezolid and clindamycin. Compared to methicillin susceptible S. aureus (MSSA) isolates (68.8%, 99/144), MRSA isolates were more resistant to non-beta-lactam antimicrobials –trimethoprim/sulfamethoxazole 73.3% (33/45) vs. 27.3% (27/99) [p<0.0001]; erythromycin 75.6% (34/45) vs. 24.2% (24/99) [p<0.0001]; chloramphenicol 60% (27/45) vs. 19.2% (19/99) [p<0.0001]; gentamicin 55.6% (25/45) vs. 25.3% (25/99) [p=0.0004]; and ciprofloxacin 35.6% (16/45) vs. 2% (2/99) [p<0.0001]. Furthermore, 42 MRSA (93.3%) were multidrug resistant (MDR) and one exhibited high-level resistance to mupirocin. Overall, 61 MSSA (61.6%) were MDR, including three mupirocin and clindamycin resistant isolates. Seven spa types were detected among MRSA, of which t037 and t064 were predominant and associated with SCCmec types I and IV, respectively. Fourteen spa types were detected in MSSA which consisted mainly of t645 and t4353. Conclusions: S. aureus carriage rate in healthy children in Eastern Uganda is high and comparable to rates for hospitalized patients in Kampala. The detection of mupirocin resistance is worrying as it could rapidly increase if mupirocin is administered in a low-income setting. S. aureus strains of spa types t064, t037 (MRSA) and t645, t4353 (MSSA) are prevalent and could be responsible for majority of staphylococcal infections in Uganda.

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Occurrence of Antibiotic Resistant Bacteria in Environmental Wastes

Our Nature ◽

10.3126/on.v7i1.2563 ◽

1970 ◽

Vol 7 (1) ◽

pp. 151-157

Author(s):

R.C. Poudel ◽

D.R. Joshi ◽

N.R. Dhakal ◽

A.B. Karki

Keyword(s):

Staphylococcus Aureus ◽

Sewage Sludge ◽

Antibiotic Susceptibility ◽

Multidrug Resistant ◽

Resistant Bacteria ◽

Multidrug Resistant Bacteria ◽

Antibiotic Resistant ◽

Antibiotic Susceptibility Pattern ◽

Antibiotic Susceptibility Test ◽

Enterococcus Spp

Microbial resistance to antibiotics has been emerging in environmental isolates. This study was carried out from October 2008 to January 2009 to describe the antibiotic susceptibility pattern of the bacteria isolated from sewage sludge, biowaste and bioslurry samples. A total of 49 identified isolates were taken for antibiotic susceptibility test. Amikacin and Gentamicin were the effective antibiotics for the Gram negative bacteria, comparatively Escherichia coli was the most sensitive. Similarly, all isolates of Staphylococcus aureus and Enterococcus spp. were sensitive to Tetracycline and Erythromycin respectively and none of these isolates were resistant to Vancomycin. Out of 13 S. aureus, five (38.5%) were Methicillin resistant Staphylococcus aureus (MRSA). The multidrug resistant (MDR) isolates accounted for 46.9%, the highest percentage of MDR isolates was seen in Pseudomonas aeruginosa (9/12, 75.0%). The proper management of multidrug resistant bacteria present in waste is suggestive for environmental and public health.Key words: Multidrug resistant bacteria, Bio-waste, Sewage sludge, BioslurryDOI: 10.3126/on.v7i1.2563Our Nature (2009) 7:151-157

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Antibiotic Susceptibility Profile of Staphylococcus aureus Isolated from Clinical Samples in Nasarawa Town, Nasarawa State, Nigeria

International Journal of TROPICAL DISEASE & Health ◽

10.9734/ijtdh/2019/v36i230137 ◽

2019 ◽

pp. 1-5

Author(s):

Y. U. Jibril ◽

Y. Aliyu ◽

B. O. Akwe

Keyword(s):

Staphylococcus Aureus ◽

Antibiotic Susceptibility ◽

Healthcare Costs ◽

Multidrug Resistant ◽

Clinical Samples ◽

High Susceptibility ◽

Prolonged Stay ◽

Common Cause ◽

Life Threatening ◽

Multidrug Resistant Strain

Multidrug resistant strain of S. aureus is the most common cause of life-threatening hospital- and community-acquired infections. Multidrug resistant S. aureus infections contribute to patients’ prolonged stay in the hospital, increase in total healthcare costs, morbidity, and mortality. This work was aimed at determining the occurrence and antibiotic susceptibility profile of Staphylococcus aureus isolated from some clinical samples (blood and urine) in General Hospital, Nasarawa, Nasarawa State, Nigeria. All the 14 samples (7 each for blood and urine) collected in this study yielded positive for S. aureus, which were identified by cultural appearances and confirmed using conventional biochemical tests.The antibiotic susceptibility profile of the isolates indicated that, majority of them exhibited high susceptibility to gentamycin (85.7%), ciprofloxacin (78.6%), vancomycin (71.4%), chloramphenicol (64.3%), teicoplanin (50.0%), and erythromycin (42.9%). All the 14 (100%) isolates tested showed resistance to oxacillin, amoxicillin (85.7%), and cefoxitin (78.6%).

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Antibiotic Susceptibility of Staphylococcus aureus Isolated from Retailed Raw Beef at Choba Market, Rivers State

International Journal of Pathogen Research ◽

10.9734/ijpr/2021/v6i430168 ◽

2021 ◽

pp. 25-30

Author(s):

Onoriode C. Eruteya ◽

Patience O. Osariemen

Keyword(s):

Staphylococcus Aureus ◽

Antibiotic Susceptibility ◽

Multidrug Resistant ◽

Antibiotic Resistant ◽

Mannitol Salt Agar ◽

Randomized Design ◽

Mueller Hinton ◽

Mueller Hinton Agar ◽

High Level ◽

Rivers State

Aims: The aim of the study was to determine the presence of antibiotic resistant Staphylococcus aureus in retail raw beef in Choba market, Nigeria. Study design: The study is based on a completely randomized design with two replicates and the mean being calculated. Place and Duration of Study: Major’s Laboratory, Department of Microbiology, University of Port Harcourt within three months. Methodology: The presence, characterization and antibiotic susceptibility of S. aureus from 30 retail raw beef samples was done using standard microbiological method involving the use of mannitol salt agar (MSA) and Mueller Hinton agar (MHA). Results: All the samples were positive for Staphylococcus species of which 18 (60.00%) were positive for S. aureus. The S. aureus strains were least resistant to gentamycin (22.22%) and cotrimoxazole (38.89%) with varying resistance against erythromycin (83.33%), tetracycline (88.88) and chloramphenicol (61.11%). All the S. aureus isolates in this study were 100% resistant to cloxacillin, amoxicillin and augmentin or amoxicillin-clavulanic acid combination. These results also showed the potential dissemination of multidrug-resistant S. aureus strains in the raw beef samples examined. Conclusion: The results of this study suggested high-level contamination of meat with multi-drug resistant S. aureus and this highlights the public health consequences associated with consuming such unhygienic products if poorly prepared.

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

MedPharmRes ◽

10.32895/ump.mpr.2.2.21 ◽

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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