Antimicrobial Susceptibility Pattern of Staphylococcus Species from Clinical Samples

2020 ◽  
Author(s):  
Muhammad Ali
Keyword(s):  
Clavulanic Acid ◽  
Antibiotic Susceptibility ◽  
Vaginal Swab ◽  
Diffusion Method ◽  
Clinical Samples ◽  
Susceptibility Pattern ◽  
Mannitol Salt Agar ◽  
Agar Disc ◽  
Microbiological Methods ◽  
Amoxicillin Clavulanic Acid

The research was aimed to evaluate the antibiotic susceptibility pattern of Staphylococcus species from clinical samples obtained from some hospitals in Kano metropolis, Nigeria. The ear swab, high vaginal swab (HVS), wound swab and urine samples from the patients attending the hospitals were collected and inoculated onto the surface of freshly prepared Nutrient agar for bacterial isolation. The bacteria isolated were identified by conventional microbiological methods namely; Gram staining, biochemical test (such as catalase, coagulase, and DNase test), mannitol salt agar and heamolysis test. The isolates were subjected to antibiotic susceptibility testing using the agar disc diffusion method. The result showed that S. aureus was highly susceptible to Ciprofloxacin 105 (68.63%), Gentamicin 102 (66.67%), Levofloxacin 95 (62.08%) and Amikacin 90 (58.82%), S. epidermidis was highly susceptible to Gentamicin 13 (61.90%), Levofloxacin 12 (57.14%) and Nitrofurantoin 11 (52.38%) while S. saprophyticus was highly susceptible to Cefoxitin 7 (77.78%), Gentamicin 6 (66.67%) and Nitrofurantoin 5 (55.56%). On the other hand, S. aureus was highly resistant to Cefuroxime 153 (100%), Ceftazidime 150 (98.04%), Amoxicillin/clavulanic acid 120 (78.43%) and Cloxacillin 111 (72.55%), S. epidermidis was highly resistant to Ceftazidime 20 (95.24%), Cloxacillin 19 (90.48%) then Cefoxitin, Erythromycin and Amoxicillin/clavulanic acid with 15 (71.43%) both. S. saprophyticus was highly resistant to Cefepime 9 (100%), Cloxacillin 8 (88.89%), Ceftazidime 7 (77.78%), Imipenem and Erythromycin with 6 (66.67%) respectively. There is a statistical difference in the sensitivity of the isolates against the antibiotics used at p<0.05. It is concluded that Staphylococcus species develop resistance to some classes of antibiotics.

scholarly journals Prevalence of Methicillin-Resistant Staphylococcus aureus Isolated from Clinical Samples at Narayani Samudayik Hospital, Chitwan, Nepal

2020 ◽  
Vol 7 ◽  
pp. 37-42
Author(s):  
Rama Adhikari ◽  
Bindu Kshetri ◽  
Khem Narayan Sharma ◽  
Santosh Khanal ◽  
Om Prakash Panta ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Susceptibility ◽  
Methicillin Resistance ◽  
Diffusion Method ◽  
Clinical Samples ◽  
Susceptibility Pattern ◽  
Cross Sectional ◽  
Mannitol Salt Agar ◽  
Antibiotic Susceptibility Pattern ◽  
Clinical Specimens

Objectives: The main objective of this study was to determine the prevalence of Methicillin Resistance Staphylococcus aureus (MRSA) and MDR bacteria isolated from various clinical specimens from the patients attending Narayani Samudayik Hospital, Chitwan Methods: A cross sectional study was carried in NPI-Narayani Samudayik Hospital, Chitwan from June to December 2017. Altogether, 3610 clinical specimens mainly pus, blood and urine were collected, streaked on Mannitol Salt Agar and Blood Agar and incubated at 37°C for 24 hours. The confirmed colonies of S. aureus were sub-cultured on Nutrient Agar. The antibiotic susceptibility pattern of all isolates S. aureus was determined by Kirby Bauer disc diffusion method. Isolates resistant to cefoxitin (30mcg) were confirmed as MRSA. Result: Among 3610 total clinical samples, 17.6 % (635/3610) showed growth and 95(14.96%) S. aureus were isolated. Higher number of S. aureus was isolated from pus sample (93.15%). Out of 95 S. aureus isolates, 55 (57.89%) were identified as MRSA while 40 (42.10%) were MSSA. Vancomycin, ceftriaxone and chloramphenicol were found to be most effective antibiotic against isolates. Whereas, the least effective antibiotic was cefoxitin followed by amoxiclav, oxacillin and amoxicillin. Conclusion: This study concludes that the overall prevalence of MRSA and MDR among the bacterial isolates is higher compared to other studies. So, it is recommended to monitor the antibiotic susceptibility pattern of pathogens regularly and study the epidemiology of such isolates.  

scholarly journals Antimicrobial susceptibility of Actinobacillus pleuropneumoniae strains isolated from pig's clinical samples in Serbia

2016 ◽  
Vol 72 (10) ◽  
pp. 637-640
Author(s):  
Jadranka Žutić ◽  
Ljiljana Pavlović ◽  
Oliver Radanović ◽  
Vladimir Radosavljević ◽  
Branislav Kureljušić ◽  
...  
Keyword(s):  
Clavulanic Acid ◽  
Antimicrobial Agents ◽  
Actinobacillus Pleuropneumoniae ◽  
Diffusion Method ◽  
Clinical Samples ◽  
Disk Diffusion Method ◽  
Bacterial Diseases ◽  
Porcine Pleuropneumonia ◽  
Amoxicillin Clavulanic Acid ◽  
Resistance Rates

Porcine pleuropneumonia, caused by Actinobacillus pleuropneumoniae is one of the most important bacterial diseases of the pig respiratory tract. One hundred and forty eight Actinobacillus pleuropneumoniae strains isolated from pig's clinical samples were tested for their susceptibility to 11 antimicrobials by disk diffusion method. Isolates were obtained from the pathoanatomically altered pig's lung that died with signs of respiratory disease. Antimicrobial discs with following concentration were used: ampicillin 10 µg, amoxicillin 10 µg, amoxicillin/clavulanic acid 20/10 µg, cefotaxime 30 µg, gentamicin 10 µg, penicillin 10 IU, streptomycin 10 µg, tetracycline 30 µg, enrofloxacin 5µg, lincospectin 15/200 µg, florfenicol 30 µg and trimethoprim/sulfamethoxazole 1.25/23.75 µg. Isolated strains showed various susceptibility to tested antimicrobials. Seventy-five percent of isolates were resistant to one or more drugs frequently used in the treatment of pig's diseases at farms in Serbia. All 148 isolates were susceptible to cefotaxime, enrofloxacin and florfenicol, while 96% of them were susceptible to amoxicillin/clavulanic acid and lincospectin. Susceptibility of isolates to amoxicillin, gentamicin and trimethoprim/sulfamethoxazole were 91%, 77% and 64%, respectively. The highest resistance rates were determined for tetracycline and streptomycin, 34% and 31%, respectively. When compared to our previous results, we noticed a decrease in resistance to tetracyclines and trimethoprim/sulfamethoxazole. Our results indicate that A. pleuropneumoniae strains isolated from pig's clinical samples in Serbia show high susceptibility to antimicrobial agents which are most often used in the pig industry.

scholarly journals Bacteriological Profile and Antibiotic Susceptibility Pattern of Isolates of Wound Infection In Children Visiting Kanti Children Hospital

2020 ◽  
Vol 7 ◽  
pp. 123-132
Author(s):  
Gita Ghimire ◽  
Chaudhary RP ◽  
Binod Lekhak
Keyword(s):  
Staphylococcus Aureus ◽  
Wound Infection ◽  
Antibiotic Susceptibility ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Susceptibility Pattern ◽  
Disc Diffusion Method ◽  
Antibiotic Susceptibility Pattern ◽  
Microbiological Methods ◽  
The Status

Objectives: The objectives of this study was to isolate and identify the bacterial etiological agent of wound infection and explore the status of methicillin-resistant Staphylococcus aureus ( MRSA), multidrug Resistant (MDR) and extended spectrum β-lactamase (ESBL) producers’ strains in clinical specimens and to find the antibiotic susceptibility pattern. Methods: A prospective cross sectional study design was conducted from period of February 2014 to October 2014 at Kanti Children Hospital, Kathmandu. The organisms were isolated and identified from pus sample by standard microbiological methods. Antimicrobial susceptibility test was performed by modified the Kirby Bauer disc diffusion method to evaluate the status of MRSA and MDR. ESBL detection was performed by the combined disc diffusion method. Results: Out of 365 specimens collected between the age group below < 2 to 15 years, 210 (57.73%) samples from male patients and 155 (42.47%) from female patients. In the total samples processed, Gram-positive organisms were found to be more prevalent in which Staphylococcus aureus accounts for 135(47.20%), followed by P. aeruginosa 62 (21.67%), E. coli 29 (10.20%), K. pneumoniae 27 (9.44%), Acinetobacter spp. 20 (6.70%), P. vulgaris 7 (2.44%) and CoNS 6 (2.10%). Among the S. aureus isolates, 29 (21.48%) were found MRSA. Of the total Gram-negative organisms isolated, 74 (51.03%) were MDR and 14 (100%) ESBL producer, (P<0.01). S. aureus was found to be the most important and leading cause of wound infection in this study. Conclusion: Thus, routine antibiotic susceptibility testing is recommended for empirical drug therapy and proper management of disease.  

scholarly journals Study of antibiotic resistance profiling of Staphylococcus aureus isolated from clinical specimens of the patients attending a tertiary teaching hospital from Chhattisgarh

2017 ◽  
Vol 5 (11) ◽  
pp. 4808
Author(s):  
Archana Bhimrao Wankhade ◽  
Sanjibkumar Panda ◽  
Riddhi Hathiwala ◽  
Yogendra Keche
Keyword(s):  
Staphylococcus Aureus ◽  
Multidrug Resistance ◽  
Antibiotic Susceptibility ◽  
Susceptibility Testing ◽  
Diffusion Method ◽  
Clinical Samples ◽  
Resistance Pattern ◽  
Antibiotic Susceptibility Testing ◽  
Microbiological Methods ◽  
Tertiary Teaching

Background: Staphylococcus aureus is a pathogen causing wide spectrum of infections. It has tendency for the development of multidrug resistance thereby exposing the selection of appropriate treatment. Therefore, the present study was undertaken to find out the antibiotic susceptibility pattern of Staphylococcus aureus isolated from various clinical samples in teaching tertiary hospital.Methods: Total 85 Staphylococcus aureus was isolated from clinical samples (pus, urine, sputum and blood) tested. Identification of Staphylococcus aureus was done by standard conventional microbiological methods. Antibiotic susceptibility testing was done by using disk diffusion method as per CLSI guidelines.Results: Staphylococcus aureus was isolated maximum from pus samples followed by urine samples. Antibiotic susceptibility testing showed highest resistance against Penicillin (69%) and Erythromycin (51%) followed by Cotrimoxazole (50%) & Nitrofurantoin (50%). All the strains were sensitive to Vancomycin. Amongst the urine isolates all were sensitive to Norfloxacin. These percentages of sensitivities are characteristically higher in our study than the previous studies in the literature. In addition, out of 85 Staphylococcus aureus isolates, 26 isolates showed sensitivity   to all antibiotics.Conclusions: From the present study we conclude that though the Staphylococcus aureus is usually having multidrug resistance pattern. So regular antimicrobial susceptibility surveillance is essential for area‐wise monitoring of the resistance patterns. This will be beneficial to preserve the effectiveness of antibiotics and for better patient management.

scholarly journals Prevalance of Extended Spectrum Beta Lactamases (ESBL) Producing Escherichia Coli Isolated From Clinical Samples at Tertiary Care Hospital Peshawar

2017 ◽  
Vol 1 (1) ◽  
Keyword(s):  
Escherichia Coli ◽  
Clavulanic Acid ◽  
Body Fluids ◽  
Diffusion Method ◽  
Clinical Samples ◽  
Beta Lactamase ◽  
Gram Negative ◽  
E Coli ◽  
Wound Swab ◽  
Amoxicillin Clavulanic Acid

Escherichia coli is Gram negative, facultative and non sporulating rod shaped bacteria. It is commonly inhabitant of the gastrointestinal tract of humans and animals. E. coli cause diseases like urinary tract infection cholecystitis, cholangitis and traveler’s diarrhoea and the UTI which is more prevalent worldwide. E. coli cause complication like Hemolytic Uremic Syndrome which leads to renal failure, Thrombotic Thrombocytopenic Purpura, septicemia and peritonitis. Extend spectrum beta lactamase enzyme produce by E. coli which capable of hydrolyzing first and third generation cephalosporin, and is inhibited by beta lactamase inhibitor. A total of 150 clinical samples (blood, urine, wound swab, body fluids) were collected from Post Graduate Lady Reading Hospital Peshawar. Different media used were Nutrient agar, MacConky agar and Cysteine, Lactose and Electrolyte-Deficient agar. E. coligive pink colonies on MacConky agar because it is lactose fermenter. For further confirmation different biochemical tests were performed like triple sugar iron, Indole, and citrate utilization tests. The antibiotics susceptibility and resistivity was checked by disk diffusion method and different antibiotics were used. For ESBL detection combined disk method was performed. In the clinical samples the percentage of Gram positive bacteria in blood was (20%), urine (14.2%), wound swab (83.3%), and body fluids (8%), and the Gram negative in urine was (80%), blood (7%), wound swab (10%), and body fluids (0%). E. coli was more prevalent in urine which was 25(35.71%) and ESBL producing E. coli was 5(20%). The ESBL producing E. coli was resistant to ciprofloxacin (100%), amikacin (40%), amoxicillin+clavulanic acid (40%), levofloxacin (80%), tazobactum+pipracilline (20%), gentamycin (100%), trimethoprim (60%), cefotaxime (100%) and meropenem (0%). Sensitivity toward levofloxacin (20%), tazobactum+pipracilline (80%), gentamycin (0%), trimethoprim (40%), cefotaxime (0%) and meropenem (100%), ciprofloxacin (0%), amikacin (60%), amoxicillin+clavulanic acid (60%). The most effective antibiotic against ESBL producing E. coli was Meropenem while least effective antibiotics against ESBL producing E. coli were Gentamycin and Ciprofloxacin.

scholarly journals Detection of Methicillin Resistant Staphylococcus aureus in Dairy Products and Anterior Nares of Dairy Workers

2019 ◽  
Vol 6 ◽  
pp. 59-62
Author(s):  
Ranjana K.C. ◽  
Ganga Timilsina ◽  
Anjana Singh ◽  
Supriya Sharma
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Susceptibility ◽  
Dairy Products ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Dairy Product ◽  
Control Measures ◽  
Diffusion Method ◽  
Mannitol Salt Agar ◽  
Methicillin Resistant ◽  
Dairy Workers

Objectives: To isolate methicillin resistant Staphylococcus aureus (MRSA) from anterior nares of dairy workers and dairy products and assess the antibiotic susceptibility pattern of the isolates. Methods: Swab samples collected from anterior nares of dairy workers and dairy product (butter) were inoculated into mannitol salt agar and incubated at 37ºC for 24 hours. Identification was done based on colony characteristics, Gram's staining, catalase, oxidase and coagulase test. Antibiotic susceptibility testing was done by modified Kirby Bauer disc diffusion method. MRSA was confirmed by using cefoxitin disc. Results: A total of 109 S. aureus (98 from dairy workers and 11 from butter samples) were isolated. Out of them 32 MRSA were isolated from dairy workers and 4 from butter samples. The association between age group and MRSA was found insignificant (p = 0.115). The association of MRSA between male and female workers was found significant (>0.05). About 86% of the MRSA isolates were susceptible to Gentamicin (86.11%) followed by Ciprofloxacin (77.78%). Conclusion: Detection of MRSA among dairy workers and dairy products warrants proper handling and adequate control measures to prevent transmission of MRSA from dairy industry.

scholarly journals Antifungal Susceptibility and Biofilm Production of Candida spp. Isolated from Clinical Samples

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Munmun B. Marak ◽  
Biranthabail Dhanashree
Keyword(s):  
Antifungal Susceptibility ◽  
Clinical Information ◽  
Antibiotic Use ◽  
Microtiter Plate ◽  
Vaginal Swab ◽  
Diffusion Method ◽  
Clinical Samples ◽  
Candida Spp ◽  
Disk Diffusion Method ◽  
Biofilm Production

Objective. The study aims to speciate clinical Candida isolates and detect their biofilm-forming ability and antifungal resistance. Methods. All the Candida spp. isolated from different clinical samples like pus, urine, blood, and body fluid were included in the study. Biofilm production was tested by the microtiter plate method. Antifungal susceptibility was studied by the disk diffusion method. Patient’s demographic details such as age, sex, and clinical information were collected. Presence of other risk factors such as diabetes mellitus, history of antibiotic use, and any urinary tract instrumentations was also recorded. Results. Among 90 Candida species isolated, most predominant species was found to be C. albicans (45.5%) followed by C. tropicalis (28.88%), C. krusei (20%), C. glabrata (3.33%), and C. parapsilosis (2.22%). Candida spp. were isolated from urine (43%), BAL/sputum (18.88%), high vaginal swab (8.88%), suction tips (7.77%), blood and wound swabs (6.66%), pus (3.33%), bile aspirate (2.22%), and deep tissue (1.11%). A larger number of females were affected than males, and the age group of 51 to 60 years was more susceptible to candidiasis. A higher number of C. albicans isolates produced biofilm followed by C. parapsilosis, C. tropicalis, and C. krusei. However, C. glabrata showed no biofilm production in our study. All Candida isolates were 100% sensitive to amphotericin B. Voriconazole was the next effective drug with 81.11% susceptibility. 24.44% of strains were resistant to fluconazole. Conclusion. Speciation of Candida isolates, detection of ability to form the biofilm, and monitoring of antifungal susceptibility testing are necessary for appropriate treatment.

scholarly journals Neonatal septicemia and current scenario of antibiotic sensitivity pattern – A study of blood culture isolates in a tertiary care hospital, Rajkot

2021 ◽  
Vol 7 (4) ◽  
pp. 222-226
Author(s):  
Madhulika Mistry ◽  
Arpita Bhattacharya ◽  
Twinkle Kumar Parmar
Keyword(s):  
Neonatal Sepsis ◽  
Antibiotic Susceptibility ◽  
Antibiotic Sensitivity ◽  
Diffusion Method ◽  
Susceptibility Pattern ◽  
Gram Positive ◽  
Antibiotic Susceptibility Pattern ◽  
Neonatal Septicemia ◽  
Gram Negative ◽  
Current Scenario

Neonatal sepsis is one of the leading causes of neonatal mortality in developing countries. Neonatal sepsis can be classified into two subtypes depending upon onset of symptoms- before 72 hours of life (early-onset neonatal sepsis—EONS) or later (late-onset neonatal sepsis—LONS). Bacteriological profile and antibiotic susceptibility pattern in neonatal septicemia are changing time-to-time and place-to-place. This study is aimed to know the current scenario of neonatal septicemia and antibiotic susceptibility pattern for determining effective treatment, hence reducing burden of antibiotic resistance.This is a Retrospective study. Data was collected from Bacteriology lab, PDUMC Rajkot (May 2020 – May 2021). Blood cultures were performed on suspected neonates. Both BACTEC and conventional methods were used. Organisms were isolated by standard microbiological protocols and antibiotic sensitivity was performed by Kirby-Bauer disc diffusion method as per CLSI- 2020/2021 guidelines. Total 1402 samples were screened. 326 were positive (23.25%). 214(65.64%) were male and 112(34.36%) were female. CONS (32.21%) was found to be the predominant pathogen followed by Klebsiella (19.63%), Staphylococcus aureus (18.10%), E. coli (15.95%), Acinetobacter (12.27%) and Enterococcus spp. (1.84%). EONS was seen in 195(59.82%) cases and LONS was seen in 131(40.18%) cases. Gram-negative bacteria are predominant in EONS (76.28%) and gram-positive bacteria is predominant in LONS (64.12%). Gram negative isolates are mostly susceptible to Meropenem, Piperacillin-tazobactam, Cefepime, Ceftazidime. Gram positive isolates mostly showed sensitivity to Vancomycin, Linezolid.Multi-drug resistant organism are emerging in neonatal septicemia. Strict antibiotic stewardship should be practiced to avoid the upcoming treatment difficulties.

scholarly journals Prevalence and antibiotic susceptibility pattern of Klebsiella species isolated from various clinical samples in a tertiary care hospital Coimbatore

2021 ◽  
Vol 8 (10) ◽  
pp. 4886
Author(s):  
Vijayashree V. ◽  
Saikeerthana D. ◽  
Prabha P.
Keyword(s):  
Antibiotic Susceptibility ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Antibiotic Sensitivity ◽  
Clinical Samples ◽  
Care Hospital ◽  
Susceptibility Pattern ◽  
Klebsiella Species ◽  
Antibiotic Susceptibility Pattern ◽  
Sensitivity Pattern

Background: The genus Klebsiella of Enterobacteriaceae family is ubiquitous in nature. They cause many nosocomial infections like pneumonia, urinary tract infections, wound infections, bacteremia and septicemia. Multidrug resistance is seen in Klebsiella which serves as the most common cause of increased morbidity and mortality. This study reveals the prevalence and antibiotic sensitivity pattern of Klebsiella species from various clinical samples. The primary objectives are as follows: To isolate and characterize Klebsiella species from various clinical samples. To study the antibiotic susceptibility pattern of Klebsiella isolates.Methods: This prospective study was conducted in our tertiary care hospital during the period from August 2019 to October 2019. A total of 3521 samples were tested during this period. The samples include blood, sputum, urine, and pus.Results: Out of the total samples tested,1106 samples were showing the growth of the organisms. Among this,351 were identified as Klebsiella species and the highest rate of isolation of Klebsiella species is from the sputum sample and also the same was reported high in medical wards. The study also shows that the isolation of Klebsiella species shows male preponderance when compared to females. The antibiotic sensitivity pattern was done by Kirby-Bauer's disc diffusion method and the sensitivity was noted to be higher to amikacin and ciprofloxacin.Conclusions: Thus, this study shows the prevalence rate of Klebsiella species and sensitivity pattern of Klebsiella, which may help select appropriate antibiotics and prevent overuse and misuse of antibiotics.

Antibiotic susceptibility of bacterial isolates from 502 dogs with respiratory signs

2014 ◽  
Vol 176 (14) ◽  
pp. 357-357 ◽  
Author(s):  
M. Rheinwald ◽  
K. Hartmann ◽  
M. Hähner ◽  
G. Wolf ◽  
R. K. Straubinger ◽  
...  
Keyword(s):  
Antibiotic Susceptibility ◽  
Bacterial Species ◽  
Lavage Fluid ◽  
Respiratory Pathogen ◽  
Susceptibility Pattern ◽  
Gram Positive Bacteria ◽  
Amoxicillin Clavulanic Acid ◽  
Tract Infections ◽  
Cultured Bacteria ◽  
Privately Owned

The aim of this study was to investigate the prevalence of bacterial species isolated from bronchoalveolar lavage fluid (BALF) samples taken from dogs with respiratory signs and to determine their antibiotic susceptibility. Clinical cases were included in the study if they showed signs of respiratory disease and data relating to bacterial culture and susceptibility of BALF samples were available. The medical records of 493 privately owned dogs that were presented between January 1989 and December 2011 were evaluated retrospectively. In 35 per cent of samples, no bacteria were cultured. Bacteria isolated from culture-positive samples included Streptococcus species (31 per cent of positive cultures), Enterobacteriaceae (30 per cent, including Escherichia coli (15 per cent)), Staphylococcus species (19 per cent), Pasteurella species (16 per cent) and Pseudomonas species (14 per cent). Bordetella bronchiseptica as a primary respiratory pathogen was isolated in 8 per cent of cases. Enrofloxacin showed the best susceptibility pattern; 86 per cent of all isolates and 87 per cent of Gram-negative bacteria were susceptible to this antibiotic. Amoxicillin/clavulanic acid yielded the best susceptibility pattern in Gram-positive bacteria (92 per cent). Therefore, these antibiotics can be recommended for empirical or first-line treatment in dogs with bacterial lower respiratory tract infections.

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