scholarly journals Antimicrobial susceptibility of bacterial isolates from ambulatory practice and from a referral hospital

2019 ◽  
Vol 34 (1) ◽  
pp. 300-306 ◽  
Author(s):  
Julie F. N. Potier ◽  
Andy E. Durham
2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Aynalem Mohammed ◽  
Mengistu Endris Seid ◽  
Teklay Gebrecherkos ◽  
Moges Tiruneh ◽  
Feleke Moges

Background.The widespread uses of antibiotics, together with the length of time over which they have been available, have led to the emergence of resistant bacterial pathogens contributing to morbidity and mortality. This study was aimed to assess bacterial isolates and their drug susceptibility patterns from inpatients and outpatients with pus and/or wound discharge.Methods.A cross-sectional study was conducted at the University of Gondar Referral Hospital from March to May, 2014. Wound swab samples were collected from each study participant and inoculated into appropriate media. The bacterial pathogens were identified using standard microbiological methods. Antimicrobial susceptibility tests were performed using disk diffusion technique following Kirby-Bauer method.Results.A total of 137 study subjects were included in the study with bacterial isolation rate of 115 (83.9%). Of all, 81 (59.1%) were males. Seventy-seven (57%) of the isolates were Gram-negative and 59 (43%) were Gram-positive. From the total isolates,Staphylococcus aureuswas the most predominant isolate 39/115 (34%) followed by Klebsiella species (13%), coagulase negative staphylococci spp. (12%) andPseudomonas aeruginosa. Gram-positive isolates were resistant to ampicillin (86.4%), amoxicillin (83%), penicillin (81.3%), oxacillin (74.6%), and tetracycline (59.4%), while Gram-negative isolates were resistant to amoxicillin (97.4%), ampicillin (94.8%), tetracycline (72.7%), trimethoprim/sulfamethoxazole (66%), and chloramphenicol (54.5%).Conclusion. High prevalence of bacterial isolates was found,Staphylococcus aureusbeing the most dominant. High rates of multiple drug resistance pathogens to the commonly used antimicrobial agents were isolated. Therefore, concerned bodies should properly monitor the choice of antibiotics to be used as prophylaxis and empiric treatment in the study area.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Pizga Kumwenda ◽  
Emmanuel C. Adukwu ◽  
Ebot S. Tabe ◽  
Victor. C. Ujor ◽  
Pocha S. Kamudumuli ◽  
...  

Abstract Background Bacterial infections are a significant cause of sickness and death in sub-Saharan Africa. This study aimed at establishing the prevalence, distribution and antimicrobial susceptibility pattern of major bacterial isolates from patients accessing medical care at a tertiary hospital in Malawi. Methods We retrospectively reviewed bacteria culture and antimicrobial susceptibility records for 4617 patients from 2002 to 2014 at Mzuzu Central Hospital (MCH). No inclusion and exclusion criteria were followed. Data was analysed using excel (Microsoft office, USA) and GraphPad prism 7 software programs. Results The most prevalent isolates were S. aureus (34.7%, n = 783), Klebsiella species (17.4%, n = 393) and Proteus species (11.4%, n = 256). Most microorganisms were isolated from adults (88.3%, n = 3889) and pus was the main source (69.3%, n = 1224). S. pneumoniae was predominantly isolated from cerebrospinal fluid (60.3%, n = 44) largely collected from children (88.2%, n = 64). Overall, most bacteria exhibited high resistance to all regularly used antimicrobials excluding ciprofloxacin. Conclusions Our report demonstrates an increase in bacterial infection burden in sites other than blood stream and subsequent increase in prevalence of antimicrobial resistance for all major isolates. Creating an epidemiological survey unit at MCH will be essential to help inform better treatment and management options for patients with bacterial infections.


2021 ◽  
Vol 10 (4) ◽  
pp. 377-383
Author(s):  
Murad A. Hiblu ◽  
Omar M. Ellraiss ◽  
Elfurgani S. Karim ◽  
Rabia A. Elmishri ◽  
Enass M. Duro ◽  
...  

Background: Feline otitis externa is a dermatological disorder with a multifactorial complex etiology.Aim: This study aimed to investigate the prevalence of different etiological agents, particularly the parasitic and bacterial, responsible for the cases of feline otitis externa in Tripoli, Libya, and to assess the antimicrobial susceptibility of the bacterial isolates from those cases.Methods: Cerumen and otic discharges of the suspected cats were collected for parasite detection and bacterial culture. Kirby–Bauer’s disk diffusion method was used for antimicrobial susceptibility testing.Results: The results showed that otodectic mites and bacterial causes were equally the most prevalent in those cases, with a prevalence of 47.1% each. Otodectes cynotis infestation was more frequently bilateral and severe. Staphylococcus spp. were the most prevalent among bacterial causes (75%), followed by Proteus spp. (16.6%) and Pseudomonas spp. (8.4%). Norfloxacin and gentamicin were the most effective antimicrobials against bacterial isolates, as they were effective against 83.3% and 70.8% of isolates, respectively.Conclusion: Otodectes cynotis infestation and staphylococcal infections constituted the most common etiology of feline otitis externa in Tripoli, Libya, and norfloxacin represented a cogent antibacterial for the treatment of otitis externa.


2021 ◽  
Author(s):  
Berhanu Adugna ◽  
Bekele Sharew ◽  
Mohabaw Jemal

Abstract Back ground: Urinary tract infection are one of the most common bacterial infections in the community and in the hospital. Nowadays, little is known about the status of community and hospital acquired urinary tract infection, antimicrobial susceptibility pattern and associated factors among urinary tract infection patients in Ethiopia, particularly in our study area. Methods A hospital based cross sectional study was carried out in Dessie referral hospital. A total of 422 urine samples were enrolled using systematic random sampling technique. All isolates were identified by standard microbiological techniques and their antibiotic susceptibility was done by Kirby Bauer disc diffusion method. Data was entered using Epi data version 3.1 and analyzed by SPSS software version 20. P- Value < 0.05 at 95% CI was considered as statistically significant. Result Of 422 urine samples processed 100 (23.7%) yielded bacterial isolates. About50(30.7%) and 50(19.3%) samples from hospitalized and community showed significant bacteriuria respectively. E. coli 44/103(42.7%), predominated across the two groups followed by S. aureus 25/103(24.3%), CONs,14/103(13.5%), Klebsiella spps 7/103(6.78), proteus spps 3/103(2.91), and Entrococcus spps 3/103 (2.91%). Pseudomonas spps 3/103 (2.91), Citrobacter spps 2/103(1.94%) and Acinetobacter Spp 1/103(0.999), which were isolated from only the hospitalized samples. Meropenem susceptibly was 100% in both study groups and Ampicillin resistance was documented as 83.3–100% and 76.9–100% in hospitalized and community acquired respectively. Among risk factors previous use of antibiotics, female gender, Age, Diabetics, catheterization were associated with the infection. Conclusion The present study revealed that slightly high prevalence of urinary tract infection. High antimicrobial resistance was observed to most antimicrobial drugs tested. Meropenem and Nitrofurantoin were the most active drugs for urinary tract infection. Empirical selection of antimicrobial agents should be based on antibiotic sensitivity pattern of uropathogens that prevalent in that area. Female sex, age, previous use of antibiotics, catheterization and diabetics were at risk of urinary tract infection.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Mohammed Alaidarous ◽  
Meshal Alanazi ◽  
Ahmed Abdel-Hadi

This study highlights the level of microbial contamination of waterpipe components in selected area of Saudi Arabia and the resistance of selected bacteria to different antibiotics was determined. A series of biochemical tests, microscopic examination, and screening on Vitek 2 compact (bioMérieux Inc., USA) system were done to characterize the bacterial isolates. Out of 132 samples investigated, 7 mouthpiece samples and 48 water bowl samples showed positivity on culture. The percentage of contamination rate was higher in water bowl (69.69%) than in mouthpieces (10.6%) for all selected areas. A total of 55 bacterial isolates were identified which included Gram-negative (28) and Gram-positive (27) bacteria. Antimicrobial susceptibility data showed more resistance to bacteria isolated from water bowl than bacteria isolated from mouthpiece. In addition, one isolate which was confirmed as methicillin-resistant Staphylococcus aureus and Klebsiella pneumoniae was resistant to antibiotics which are commonly used to treat pneumonia. Water bowl of waterpipe instrument is significantly contaminated with different bacterial pathogens including multidrug-resistant and pneumonia causing bacteria, which are a real health concern among waterpipe smokers. The presented data could assist public health professionals to raise the concerns regarding cleaning practices of waterpipe components and highlights the risk posed among the waterpipe smokers.


2007 ◽  
Vol 2 (2) ◽  
pp. 198-200
Author(s):  
N.R. Sundaresan . ◽  
K. Sukumar . ◽  
K. Rajukumar . ◽  
K.Nagarajan . ◽  
S. Jaganathan . ◽  
...  

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