ABSTRACT
Introduction: Urinary tract infections (UTIs) are one of the most common bacterial infections in humans, both in the community and the hospital settings. The distribution of antimicrobial susceptibility data of UTI-causing microorganisms changes from time to time and from place to place. The susceptibility data provided by regional microbiology laboratories helps to choose the empirical antimicrobials to treat UTI. Materials and methods: Total 1381 urine were received in Bacteriology section of microbiology department from January 2022 to August 2022. Urine was processed for culture according to standard operating procedures at Microbiology laboratory, tertiary care hospital. Identification and antibiotic sensitivity testing was performed by automated VITEK-2 compact system. Results: In total, 1381 urine were received during the study period, 433(31.35%) cultures yielded significant pathogens and no organisms were isolated in 941 cultures and some sample was contaminate. The most commonly isolated organism were Escherichia coli (38.8%), followed by Candida spp. 88(20.32%), Klebsiellaspp (13.40%), Pseudomonas aeruginosa (12.24%), Gram positive organisms 12(2%) isolated. E. coli were most susceptible to Amikacin (87%), Fosfomycin (83%), colistin (82%), and tigecycline (78.39%). Klebsiella spp were most susceptible to colistin (72%). Nearly, 75% strains of Klebsiella spp were showing resistance to Carbapenems due to Carbapenemase production. Conclusion: Over enthusiastic use of the antibiotic has resulted in the emergence of drug-resistant bacterial strains in patients. The study of antimicrobial susceptibility patterns of uropathogens in a particular area can guide the clinicians in the rational choice of empirical treatment to prevent the misuse of antibiotics.
ABSTRACT
Background: The emergence of Methicillin-resistant Staphylococcus aureus (MRSA) has posed a serious therapeutic challenge. It is responsible for a wide range of infections including superficial skin infections, food poisoning, osteomyelitis and septicemia. Aim of this study was to identify and to determine antibiotic susceptibility pattern of Staphylococcus aureus from various clinical samples. Materials and methods: Different clinical specimens were collected and processed for routine culture and antibiotic sensitivity test by standard microbiology techniques. Results: A total of 129 S. aureus strains were isolated from various clinical specimens out of which 84 (65.12%) were Methicillin Resistance Staphylococcus aureus (MRSA). 66(51.16%) S. aureus were obtained from indoor (IPD) patients. S. aureus was found higher in male than female. S. aureus was found highly resistant to Benzylpenicillin (94.57%) followed by ciprofloxacin (77.51%), Erythromycin (61.24%), and Cotrimoxazole (51.94%), Clindamycin (44.19%), and Gentamicin (17.05%). 1 (0.78%) of the isolates were resistance to Vancomycin and Linezolid. For urine isolates Nitrofurantoin was drug of choice. Conclusion: Methicillin resistant Staphylococcus aureus was found 65.12% of Staphylococcus aureus isolates. It was most common in males and hospitalized patients. Teicoplanin or Tigecyline seems to be drug of choice followed by Vancomycin, Linezolid, Tetracycline and Gentamicin. It would be helpful to formulating and monitoring the antibiotic policy and ensure proper empiric treatment.