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Background: Gram-positive cocci are clinically important pathogens that cause infections and their development of antibiotic resistance continues to pose a severe threat to public health. Therefore, this study aims to investigate the level of antimicrobial resistance among Gram-positive cocci isolated from different clinical samples among patients referred to Arsho Advanced Medical Laboratory, Addis Ababa, Ethiopia. Methods: From January to April 2018, a cross-sectional study was conducted at Arsho Advanced Medical Laboratory. Seven hundred ninety-two (792) different clinical samples were obtained from 792 individuals and inoculated into blood culture bottles and Blood Agar base. Bacterial identification was done using the number, type, and morphology of colonies, as well as Gram staining, catalase testing, and coagulase test after isolation of pure growth on culture media using the standard operating procedure. VITEK 2 compact system was used for bacterial identification and drug susceptibility testing. The information entry and analysis were performed by using SPSS version 20. Results: Out of 792 clinical samples cultured, the prevalence of Gram-positive cocci was 12.6% (n=100/792). The most frequent one is S. aureus 54% (n=54/100) followed by coagulase-negative Staphylococcus species 42% (n=42/100), S. agalactiae 1% (n=1/100) and E. faecalis 3% (n=3/100). Penicillin showed the highest resistance rate 85% (n=85/100), followed by sulfamethoxazole/trimethoprim (47%), and oxacillin (38%); however, highest sensitivity was seen towards linezolid 97% (n=97/100) and vancomycin 94% (n=94/100). The total multi-drug resistance (MDR) Gram-positive cocci were 44% (n=44/100). Conclusion: This study demonstrated high antimicrobial resistance and multi-drug resistance. This suggests that the importance of continuous monitoring of antimicrobial resistance patterns is crucial for selecting the suitable drug for treatment and infection prevention. [ABSTRACT FROM AUTHOR]

Background: Understanding the proportion of blood and blood products contamination during transfusion is important in developing infection control strategy in the health system. Therefore, this study was aimed to determine bacterial contamination and susceptibility patterns among blood and blood components at Armed Forces Comprehensive Specialized Hospital, Addis Ababa, Ethiopia. Methods: A cross-sectional study was done on blood and blood components collected with both diverging and none-diverging methods. Simple random sampling method was applied to select blood and blood product units from the record form and 10 mL of sample was drawn from each blood and blood product. Culturing from collected blood and blood products and antimicrobial sensitivity tests were done. The collected data were entered and analyzed by SPSS statistical software version 20. Binary and multiple logistic regression analysis were done to see different factors and p-values less than 0.05 were taken as statistically significant. Results: A total of three hundred seventy six (376) units of blood and blood product samples, 188 from non-diverging and 188 from diverging blood donor collection methods were included. Among different blood group types, O+ blood and the majority of components were stored from one to five days. The overall bacterial contamination among blood and blood components were n = 17 (4.5%). Among them, n = 14 (7.4%) and n = 3 (1.6%) were collected with a non-diverging and diverging method, respectively. Staphylococcus epidermidis was the most dominant isolate. Most bacterial isolates were susceptible to different antimicrobial agents; however, Pseudomonas aeruginosa showed resistance for gentamicin. The non-diverging collection units of blood and components were significantly associated with bacterial contamination. Of all, n = 5/17 (29.4%) isolated bacteria were multidrug resistant. Conclusion: The bacterial contamination of blood and blood components collected with diverging method was lower and recommended to use this collection method from donors. [ABSTRACT FROM AUTHOR]

Background: Urinary tract infection is a common infection in pediatrics. Understanding the common etiology of urinary tract infections, their antimicrobial susceptibility pattern, and associated risk factors in a particular setting can provide evidence for the appropriate treatment of the cases. Purpose: The current study is aimed to determine the common etiology and prevalence of uropathogens associated with urinary tract infection, as well as the antibiotic susceptibility profile of bacterial isolates, and to identify risk factors associated with urinary tract infection among pediatric patients. Materials and Methods: The study was conducted at St. Paul Hospital Millennium Medical College between October 2019 and July 2020. Urine was collected aseptically from patients, inoculated onto culture media, and incubated at 37 °C for 18– 48 hours. Bacteria and yeast were identified following standard procedures. Antibiotic susceptibility testing of bacterial pathogens was carried out by the Kirby Bauer disc diffusion method. Descriptive statistics and logistical regressions were used to estimate the crude ratio with a 95% confidence interval. P-value < 0.05 was considered significant. Results: Significant bacterial/fungal growth was observed in 65 samples giving a prevalence of 28.6% of which 75.4% (49/65) and 24.6% (16/65) were bacterial and fungal pathogens, respectively. About 79.6% of bacterial etiology were Escherichia coli and Klebsiella pneumoniae. The highest resistance was observed against ampicillin (100%), cefazolin (92.1%), and trimethoprim-sulfamethoxazole (84.1%), both of which are commonly used for empirical treatment in Ethiopia. Length of hospital stay (P=0.01) and catheterization (P=0.04) were statistically associated with urinary tract infection. Conclusion: The high prevalence of urinary tract infection was observed in our study. Enterobacteriaceae were the major cause of urinary tract infection. Length of hospital stay and catheterization were significantly associated with urinary tract infection. Both Gram-negative and Gram-positive bacteria were extremely resistant to ampicillin and trimethoprim-sulfamethoxazole. [ABSTRACT FROM AUTHOR]

Response #1: In this article, we used the terms ward acquired urinary tract infection(UTI) and intensive care unit(ICU) acquired urinary tract infection(UTI) and operationalized them. Cross-Sectional Study. Whereas we defined Intensive care unit (ICU)-acquired UTI as UTI acquired in an ICU setting. [Extracted from the article]