scholarly journals Prevalence and antimicrobial Susceptibility of Bacteria Isolated from Septic wounds among Patients attending Uganda Martyrs’ Hospital Lubaga.

Author(s):  
◽  
Richard Musoke ◽  
Nathan Musisi Lubowa

Background: Wound infections are associated with increased morbidity and mortality. Etiologic agents of wound infections vary with geographical locations. Pathogens that infect wounds can be part of normal flora or acquired from the hospital environment. This study aimed to determine the prevalence of wound infections, investigate the profile of pathogens cultured from an infected wound and determine their antimicrobial resistance pattern to commonly prescribed antibiotics.  Methodology: A prospective cross-sectional study was conducted at Uganda Martyrs’ Hospital Lubaga from March 2020 to May 2020. Swabs from different types of wounds were processed to investigate etiologic agents using the standard microbiological technique. Antimicrobial susceptibility tests were done using a simple disc diffusion technique.  Results: Out of 210 wound swab samples analyzed, 125(59.5%) were culture positive. 20(16%) of the culture had mixed infections and a total of 238 bacteria were isolated from 205 cases. Staphylococcus aureus was the most frequently isolated pathogen which accounted for 94 (75.2%) of isolates followed by Proteus 11 (8.8%). The sensitivity rates of Ciprofloxacin, ceftriaxone, and gentamicin were 80.6%, 80.6%, and 74.2% respectively.  Conclusions and recommendation: S. aureus and Proteus were the predominant causes of wound infections. Ciprofloxacin, ceftriaxone, and Gentamicin were the most effective drugs. Periodic surveillance of the species of bacteria involved in wound infection and determination of their antimicrobial resistance is recommended for empirical treatment.

2019 ◽  
Vol 12 (12) ◽  
pp. 2070-2075 ◽  
Author(s):  
Victor A. Amadi ◽  
Harry Hariharan ◽  
Ozioma A. Amadi ◽  
Vanessa Matthew-Belmar ◽  
Roxanne Nicholas-Thomas ◽  
...  

Background and Aim: There is currently no published information on the prevalence and antimicrobial susceptibility patterns of commensal Escherichia coli in dogs of Grenada origin. Monitoring antimicrobial resistance helps in the empirical selection of antibiotics. This study determined the occurrence of E. coli including the O157:H7 serotype in feces of non-diarrheic dogs of Grenada origin and the antibiotic resistance pattern of the E. coli isolates. Materials and Methods: Fecal samples from 142 of the 144 (98.6%) dogs were culture positive for E. coli. Selection of up to three colonies from each of the 142 E. coli-positive samples yielded a total of 402 E. coli isolates, which were analyzed for the presence of non-sorbitol fermenting colonies, and O157-agglutination. Results: Of the 402 E. coli isolates, 30 (7.5%) were non-sorbitol fermenters. However, none of the 402 isolates gave a positive reaction (O157:H7) to the E. coli O157:H7 latex kit. Antimicrobial susceptibility tests against 12 antibiotics revealed low resistance rates to all the tested antibiotics except for tetracycline (Te) (23.4%), cephalothin (CF) (13.2%), and ampicillin (AM) (7.7%). Thirty-nine out of the 402 (9.7%), E. coli isolates were resistant to two or more antibiotics of different classes. Conclusion: This is the first report of isolation and antimicrobial susceptibilities of commensal E. coli from non-diarrheic dogs in Grenada. Some of the isolates (39/402 isolates, 9.7%) were resistant to multiple antibiotics. This study showed that presently, dogs in Grenada should not be considered a reservoir for the E. coli O157:H7 serotype and for multiple antibiotic-resistant E. coli strains. Among the 402 E. coli isolates, the resistance rate to drugs other than Te, CF, and AM was very low.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Fanta Gashe ◽  
Eshetu Mulisa ◽  
Mekidim Mekonnen ◽  
Gemechu Zeleke

Background. Drug resistant microorganisms lead to an increase in morbidity and mortality as they boost the risk of inappropriate therapy. Hence, data on antimicrobial resistance help define the best possible treatment for individual patients. Therefore, this study aimed to screen the antimicrobial resistant profile of 3rd generation cephalosporin drugs in Jimma University Specialized Teaching Hospital. Methods. A hospital based prospective cross-sectional study was conducted in Jimma University Specialized Hospital (JUSH) from April to August 2016. The clinical samples such as wound swab, urine, sputum, and stool were collected from hospitalized patients. Then, bacterial species were isolated and identified as per the standard microbiological methods. Antimicrobial susceptibility tests were carried out using various antimicrobial discs by Kirby–Bauer disc diffusion method. Results. Totally, 248 bacterial isolates were obtained from 154 (62.1%) male and 94 (37.9%) female patients. Escherichia coli (25.4%) and Staphylococcus aureus (19.0 %) were the predominant organisms isolated from specimens. About 140 (56.5%) and 149 (60.1%) of the total bacterial isolates were found to be resistant to ceftriaxone and ceftazidime, respectively. The majority of Escherichia coli isolates 46 (73%) were resistant to ceftriaxone and 41 (65%) of them were resistant to ceftazidime. Staphylococcus aureus, which accounted 19% of the total bacterial isolates, showed 23.4% and 34% resistance to ceftriaxone and ceftazidime, respectively. Among the bacterial strains revealing resistant to ceftriazone and ceftazidime, about 109 (44%) and 108 (43.5%) of them were resistant to two, three, or four other drugs, respectively. Conclusion. Bacterial resistance towards third-generation cephalosporin (ceftriaxone and ceftazidime) is escalating as more than half of the isolated strains demonstrated resistance to these drugs. Moreover, these strains also revealed multidrug resistance mainly against clinically used drugs which could render therapy unsuccessful. Therefore, in clinical use appropriate medications should be selected based on the data obtained from antimicrobial susceptibility tests.


2021 ◽  
Author(s):  
Hamda Hussein Darod ◽  
Addisu Melese ◽  
Mulugeta Kibret ◽  
Wondemagegn Mulu

Abstract Background Tonsillitis is the third most frequently diagnosed infection in the pediatrics age group around the world. It causes significant morbidity and loss of school attendance in children. The emergence of drug resistance in bacterial tonsillitis is getting higher every year. However, data on the drug resistance profiles of bacterial causes of tonsillitis among children within five years of age is not available in Somaliland.Therefore; this study determined the bacterial causes of tonsillitis and their antimicrobial resistance profiles among children within five years of age at Hargeisa Group of Hospital, Somaliland. Methods A cross-sectional study was conducted from March to July 2020. A total of 374 children within five years of age were included using convenient sampling method. Throat swabs were collected from children, processed and bacterial species were identified using standard bacteriological procedures. Antimicrobial susceptibility was done using disc diffusion method. Data on demographic variables and clinical profiles were collected using structured questionnaires. Logistic regression analysis was computed to identify factors associated with bacterial tonsillitis. P-values < 0.05 were taken as statistically significant. Results The median age of children included in the study was 4 years. Overall, 120(32.1%)(95% CI 27.4–36.8%) of children had culture confirmed bacterial tonsillitis. Of them,23(19.2%) had mixed infections.The most frequent bacterial isolates were Streptococcus pyogenes 78(55%), Staphylococcus aureus 42 (29%) and Streptococcus pneumoniae 10(7%). Isolates revealed 83.3–100 % rate of resistance to ampicillin. S. aureus was resistant to clarithromycin (38%) while 60% of S. pneumoniae isolates were resistant to gentamicin. The overall multidrug resistance (MDR) was 50.4% and 52.6% of S.pyogenes and 60% of S.pneumoniae were MDR. History of tonsillitis(AOR = 0.12; 95% CI = 0.06–0.21), difficulty of swallowing(AOR = 6.99; 95% CI = 3.56–13.73), weight loss (AOR = 0.33; 95% CI = 0.186–0.597) and attending school (AOR = 2.98; 95% CI = 1.64–5.42) were found to be associated with tonsillitis among children within five years of age. Conclusions Bacterial tonsillitis with high degree of ampicillin resistance, mixed infections and MDR isolates are major concerns in children within five years of age at Hargeisa, Somaliland. Therefore, treatment of cases should be guided by regular culture and antimicrobial susceptibility testing to prevent disease consequences and critical drug resistance.


Author(s):  
Shakthi R ◽  
Venkatesha D ◽  
Dhanalakshmi T. A

Pyogenic wound infections are the one of the leading cause of morbidity and mortality worldwide. Some of the common etiological agents responsible are ., and . The antimicrobial resistance has become a global challenge and the resistant pathogen poses a grave threat to the public health worldwide. Pyogenic bacteria producing biofilm has a potential to cause significant mortality and morbidity in human. The present study was carried out to determine the bacteriological spectrum of wound infections and their antibiogram to commonly used antibiotics and to detect the biofilm production by the isolates. This cross sectional study was carried out in the department of Microbiology, Adichunchanagiri institute of Medical sciences from September 2016 to August 2017. Two hundred and forty samples from various wounds were collected and processed as per standard procedures and biofilm production was detected by Congo red agar method.Out of 240 pus isolates, species were the most commonly isolated (48.85%) followed by species (11.7%). Biofilm was produced by 49.2% isolates .Majority of Gram negative bacilli were susceptible to Colistin (100%) followed by Tigecycline (Biofilm producers 75%, biofilm non producers 66.7%).All Gram positive isolates were susceptible to Vancomycin and Teicoplanin (100%) followed by Linezolid (biofilm producer 98.8%, biofilm non producer 97.8%) . Routine surveillance for wound infections along with early identification and adopting efficient control protocol against biofilm forming organism plays an important role in the prevention of the most serious infections.


PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0257272
Author(s):  
Habtamu Mekonnen ◽  
Abdurahaman Seid ◽  
Genet Molla Fenta ◽  
Teklay Gebrecherkos

Introduction Hospital admitted patients are at increased risk of nosocomial infections (NIs) with multi-drug resistant (MDR) pathogens which are prevalent in the hospital environment. Pseudomonas aeruginosa (P. aeruginosa) and Acinetobacter baumannii (A. baumannii) are common causes of NIs worldwide. The objective of this study is to determine antimicrobial resistance profiles and associated factors of Acinetobacter spp and P. aeruginosa NIs among hospitalized patients. Methods A cross-sectional study was conducted at Dessie comprehensive specialized hospital, North-East Ethiopia, from February 1 to April 30, 2020. A total of 254 patients who were suspected of the bloodstream, urinary tract, or surgical site nosocomial infections were enrolled consecutively. Socio-demographic and other variables of interest were collected using a structured questionnaire. Specimens were collected and processed following standard microbiological procedures. Antimicrobial susceptibility was determined using the Kirby-Bauer disk diffusion method following Clinical and Laboratory Standards Institute guidelines. Data were analyzed with SPSS version 23 and p-value < 0.05 was considered statistically significant. Results Overall, 13% of patients had nosocomial Acinetobacter spp and/or P. aeruginosa infections. The culture positivity rate was 16(6.3%) for Acinetobacter spp and 18(7.1%) for P. aeruginosa. Patients admitted in the surgical ward (Adjusted odds ratio (AOR):10.66;95% confidence interval (CI):1.22–93.23), pediatric ward (AOR:14.37;95%CI:1.4–148.5), intensive care unit (AOR:41.93;95%CI:4.7–374.7) and orthopedics (AOR:52.21;95%CI:7.5–365) were significantly at risk to develop NIs compared to patients admitted in the medical ward. Patients who took more than two antimicrobial types at admission were 94% (AOR:0.06; 95% CI:0.004–0.84) times more protected from NIs compared to those who did not take any antimicrobial. About 81% of Acinetobacter spp and 83% of P. aeruginosa isolates were MDR. Amikacin and meropenem showed promising activity against Acinetobacter spp and P. aeruginosa isolates. Conclusion The high prevalence of MDR Acinetobacter spp and P. aeruginosa nosocomial isolates enforce treating of patients with NIs based on antimicrobial susceptibility testing results.


2021 ◽  
Vol 3 (1) ◽  
pp. 102-109
Author(s):  
Ibrahim Ireneus Mauki ◽  
Jesca Deogratias William ◽  
Henry Lucas Mlay ◽  
Adonira Tajaeli Saro ◽  
Samwel Ole Saringe ◽  
...  

Background: Bloodstream infections are important causes of morbidity and mortality in people of all age groups, especially in sub-Saharan Africa. In Tanzania, a recent report indicates that case fatality rate of 37% is attributed to bloodstream infections. The aim of this study was to determine the prevalence and factors associated with bloodstream infections as well as to determine resistance pattern of bacterial isolates among patients visiting Kilimanjaro Christian Medical Centre (KCMC). Methods: A cross-sectional study was conducted from April to June 2019 at KCMC. A total of 200 patients were included in the study. Blood samples were collected for culture, malaria rapid test, typhoid and brucella tests. Clinical features, co-morbid conditions and patients' hospitalization data were recorded in the questionnaire. Logistic regression was used to examine the factors associated with bloodstream infections. Predictors of the outcome were considered significant at p<0.05. Results: The prevalence of bloodstream infections was 52(26%). Participants with stomachache had less odds of having bloodstream infections as compared to other patients with symptoms (AOR=0.22, 5.33, 95%CI=0.05-0.97; p=0.04).  Of the XX identified isolates Staphylococcus aureus showed the highest rates of resistance for Meropenem 8(88.8%), Cefotaxime 6(66.6%, Amikacin 6(66.6%), Gentamicin 6(66.6%) and Imipenem 6(66.6%). The lowest level of resistance was observed in Ceftriaxone 1(11.1%). Conclusion: Bloodstream infections were highly prevalent in this sample (26%). Staphylococcus spp was the most commonly isolated organism and exhibited a high resistance rate to most antibiotics. This calls for increased and coordinated efforts to improve the identification, treatment and management of bloodstream infections and antimicrobial resistance, thereby improving clinical practice.


2021 ◽  
Author(s):  
Habtamu Mekonnen ◽  
Abdurahaman Seid ◽  
Genet Molla ◽  
Teklay Gebrecherkos

Abstract Background:- Hospital admitted patients are at increased risk of nosocomial infections (NIs) with multi-drug resistant (MDR) pathogens which are prevalent in the hospital environment. P. aeruginosa and A. baumannii are common causes of NIs worldwide. The objective of this study is to determine the magnitude, antimicrobial resistance profiles, and associated factors of Acinetobacter and P. aeruginosa NIs among patients hospitalized at Dessie Comprehensive Specialized Hospital (DCSH), North-East Ethiopia.Methods:- A cross-sectional study was conducted at DCSH from February 1 to April 30, 2020. A total of 254 patients who were suspected of either bloodstream, urinary tract, or surgical site nosocomial infection were enrolled consecutively. Sociodemographic and other variables of interest were collected using a structured questionnaire. The specimens were collected and processed following standard microbiological procedures. Antibacterial susceptibility was determined by the Kirby-Bauer disk diffusion method following Clinical and Laboratory Standards Institute guidelines. Data were analyzed with SPSS version 23 and p-value < 0.05 was considered to be statistically significant.Results: Overall, 13% of patients had nosocomial Acinetobacter and/or P. aeruginosa infections. The culture positivity rate was 16(6.3%) for Acinetobacter spp and 18(7.1%) for P. aeruginosa. All isolates of Acinetobacter spp. were from patients with intravenous catheterization. Patients admitted in the surgical ward (Adjusted odds ratio (AOR): 10.66; 95% confidence interval (CI): 1.22-93.23), pediatric ward (AOR: 14.37; 95% CI: 1.4-148.5), intensive care unit (AOR: 41.93; 95% CI:4.7-374.7) and orthopedics (AOR: 52.21;95%CI:7.5-365) were significantly at risk to develop NIs compared to patients admitted in the medical ward. Patients who took more than two antimicrobial types were 94% (AOR: 0.06; 95% CI: 0.004-0.84) times more protected from NIs compared to those who did not take any antimicrobial. About 81% of Acinetobacter spp. and 83% of P. aeruginosa isolates were MDR. Amikacin and meropenem showed promising activity against Acinetobacter and P. aeruginosa isolates.Conclusion: The high prevalence of MDR Acinetobacter and P. aeruginosa nosocomial isolates highlighted the need of improving and implementing infection control programs in the hospitals. Treatment of NIs should be guided by antimicrobial susceptibility testing.


2014 ◽  
Vol 143 (5) ◽  
pp. 997-1003 ◽  
Author(s):  
S. M. ABD-ELGHANY ◽  
K. I. SALLAM ◽  
A. ABD-ELKHALEK ◽  
T. TAMURA

SUMMARYThis study was undertaken to survey the presence ofSalmonellain 200 chicken samples collected from Mansoura, Egypt.Salmonellawas detected in 16% (8/50), 28% (14/50), 32% (16/50) and 60% (30/50) of whole chicken carcasses, drumsticks, livers and gizzards, respectively, with an overall prevalence of 34% (68/200) among all samples. One hundred and sixty-six isolates were identified biochemically asSalmonella, and confirmed genetically by PCR, based on the presence ofinvAandstngenes. ThespvC gene, however, was detected in only 25·3% (42/166) of the isolates. Isolates were serotyped asSalmonellaEnteritidis (37·3%),S.Typhimurium (30·1%),S.Kentucky (10·8%),S.Muenster (8·4%),S.Virchow (4·8%),S.Anatum (4·8%),S.Haifa (1·2%), and four were non-typable. Antimicrobial susceptibility tests of theSalmonellaisolates revealed that 100% were resistant to each of erythromycin, penicillin, and amoxicillin, while 98·8%, 96·4%, 95·2%, and 91·6% were resistant to nalidixic acid, sulphamethoxazole, oxytetracycline, and ampicillin, respectively. Multidrug resistance was evident for 92·8% of the isolates. The high contamination level of chicken meat with multidrug-resistant Salmonellacan constitute a problem for public health.


1991 ◽  
Vol 106 (1) ◽  
pp. 121-132 ◽  
Author(s):  
L. Mulgrave

SUMMARYMore than 12800 clinical isolates from 115373 in-patient specimens obtained at the Sir Charles Gairdner Hospital, Perth, Western Australia, were identified and analysed statistically for relationships with usage of three generations of cephalosporins over the 5-year period from July 1984 to June 1989. A positive relationship between cephalosporin usage and significantly increasing isolation rates for those species capable of producing chromosomal β-lactamases was observed. Simultaneously, a small increase in the isolation frequency of non-chromosomal β-lactamase-producing strains was noted and no correlation with cephalosporin usage was demonstrated. The trend toward predomination in the hospital environment of strains possessing substantial cephalosporin resistance has implications for future antimicrobial policy, choice of empiric therapy and the predictive value of standard antimicrobial susceptibility tests.


Antibiotics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 866
Author(s):  
Iltaf Hussain ◽  
Nisa Yousaf ◽  
Sana Haider ◽  
Pervisha Jalil ◽  
Muhammad Usman Saleem ◽  
...  

The irrational use of antimicrobials has enormously contributed to antimicrobial resistance (AMR) globally and especially in the developing world. To assess the knowledge and perception regarding AMR and antimicrobial stewardship (AMS), a descriptive cross-sectional study was carried out in university students enrolled in pharmacy, veterinary, and biology programs by using an online self-administered questionnaire. The Chi-square and Fisher exact tests (where applicable) were performed to assess the association of the demographics with the students’ knowledge and perception regarding AMR and AMS. A total of 496 students completed the questionnaire, among which, 85.7% of the participants were familiar with the term AMR and 79.4% of the participants correctly identified a poorly designed dosing regimen as a contributing factor towards AMR. The majority of participants (57.9%) were familiar with the term AMS and 86.5% were aware of the aim of AMS. The participants showed good knowledge regarding AMR and AMS, but to further improve student knowledge and perception of AMS and AMR, it is suggested that dedicated modules on antibiotic use and AMS should be incorporated into the curricula of these undergraduate and postgraduate programs.


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