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Background: Neonatal sepsis is a leading cause of neonatal mortality and morbidity. The objective of the study was to detect causative microorganisms of neonatal sepsis and their antimicrobial resistance patterns.Methods: This prospective cross-sectional study was conducted from July 2017 to June 2018 in the Department of Neonatal Medicine and NICU of Dhaka Shishu (Children) Hospital (DSH). Neonates diagnosed with probable sepsis were studied. After enrollment, 1 mL blood was taken and sent to Microbiology department of DSH for culture and sensitivity. With baseline characteristics, clinical examination findings and outcome, were also recorded.Results: Rate of isolation of single organism was 9.2% (84/913). Out of 84 isolates, gram negative bacteria were 77.4% with Klebsiella pneumonae being the commonest (35, 41.7%), gram positive bacteria were 11.9% with Staphylococcus aureus and Streptococcus were equal (5, 5.95% each) and the remaining (9, 10.7%) isolated organism was Candida. Most of the isolated gram-negative bacteria were resistant to ampicillin, gentamicin, and ceftazidime; but gram-positive bacteria preserved 20-80% sensitivity. Klebsiella was more resistant than Acinetobacter to amikacin, netilmicin, ciprofloxacin and levofloxacin. Around 45-65% of gram-negative bacteria were resistant to imipenem and meropenem but gram-positive bacteria showed lesser resistance. Among the gram-negative bacteria, Klebsiella and Acinetobacter were resistant to piperacillin as same as carbapenem group, but gram-positive bacteria were 100% sensitive to piperacillin. All the gram-negative bacteria showed more resistance to 4th generation cephalosporin, cefepime than carbapenem. Out of culture positive 84 neonates, 63 (75.0%) were cured but 21 (25.0%) died. Among the 21 expired neonates, 47.6% (10/21) were infected with Klebsiella.Conclusion: This study observed that gram-negative bacteria causing neonatal sepsis predominantly, with emergence of Candida. All the isolated gram-positive and gram-negative organisms were mostly resistant to available antibiotics
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Antimicrobial resistance of bacteria is a worldwide problem affecting wild life by living with resistant bacteria in the environment. This study presents a discussion of outside factors environment on microflora of feral pigs (Sus scrofa) from Brazilian Pantanal. Animals had samples collected from six different body sites coming from two separated geographic areas, Nhecolandia and Rio Negro regions. With routine biochemical tests and commercial kits 516 bacteria were identified, with 240 Gram-positive, predominantly staphylococci (36) and enterococci (186) strains. Among Gram-negative (GN) bacteria the predominant specimens of Enterobacteriaceae (247) mainly represented by Serratia spp. (105), Escherichia coli (50), and Enterobacter spp. (40) and specimens not identified (7). Antimicrobial susceptibility was tested against 17 drugs by agar diffusion method. Staphylococci were negative to production of enterotoxins and TSST-1, with all strains sensitive towards four drugs and highest resistance toward ampicillin (17 percent). Enterococci presented the highest sensitivity against vancomycin (98 percent), ampicillin (94 percent) and tetracycline (90 percent), and highest resistance pattern toward oxacillin (99 percent), clindamycin (83 percent), and cotrimoxazole (54 percent). In GN the highest resistance was observed with Serratia marcescens against CFL (98 percent), AMC (66 percent) and AMP (60 percent) and all drugs was most effective against E. coli SUT, TET (100 percent), AMP, TOB (98 percent), GEN, CLO (95 percent), CFO, CIP (93 percent). The results show a new profile of oxacillin-resistant enterococci from Brazilian feral pigs and suggest a limited residue and spreading of antimicrobials in the environment, possibly because of low anthropogenic impact reflected by the drug susceptibility profile of bacteria isolated.
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Blood samples from 2542 clinically diagnosed cases of septicemia were processed. Out of these 946 (76.55%) were from Pediatric Department and rest from other Departments. Growth was obtained in 509(20.02%) cases . Candida spp were isolated from 23 (4.57 ) cases Out of 486 bacterial isolates 52.67 % were gram positive bacteria whereas 47.33% were gram negative bacilli . Staph aureus 133 (27.37%)was the predominant organisms followed by CONS 98 (20.1%). Amongst gram negative organisms Enterobacter 69 (14.19 %) was the most predominant followed by Esch coli 45 (9.27 %) Pseudomonas 37 (7.62 %) and Acinetobacter spp 34 (6.69 %). Amongst gram positive organisms maximum resistance was seen with ampicillin (74.61%) and erythromycin (69.67 %). Most of the gram negative bacilli were MDR (71%). Maximum resistance was observed with ampicillin (86.1% ) cephalexin (68.07%) and piperacillin (57.71%). Most successful drugs were amikacin,gentamicin and cefotaxime. 34.35% of the isolates were ESBL producers.
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Background Gonorrhoea is the third most common sexually transmitted infection (after syphilis and non-gonococcal urethritis) seen in patients attending the Genitourinary Medicine (GUM) Clinic in Hospital Kuala Lumpur (HKL). Its association with poor reproductive health outcomes and the increasing prevalence of antimicrobial resistance has made it a major public health concern. Objective To determine the antibiotic resistance pattern of Neisseria Gonorrhoeae in patients attending the GUM Clinic in HKL and its comparison with other countries. Method A retrospective study of all patients with gonorrhoea (new and recurrent) between 2001-2005. Antimicrobial susceptibility testing by standard disc diffusion method was performed to detect sensitivity to penicillin, tetracycline, kanamycin, ciprofloxacin, spectinomycin, ceftriaxone and cefuroxime. Results A total of 416 positive culture isolates of N.gonorrhoeae from 2001-2005 were reviewed. Highest level of resistance was detected to tetracycline (86.8% of 296 isolates). Resistance to penicillin was noted in 64.4% of all isolates. Penicillinase Producing N.gonorrhoeae (PPNG) accounted for 62% of cases. Both penicillin and tetracycline showed an increasing resistance trend from 2001-2005. The third commonest antibiotic resistance was to kanamycin (38.3%), followed by ciprofloxacin (10.4%). The resistance to spectinomycin was 1.7%. No resistance was detected to ceftriaxone and cefuroxime. All gonorrhea patients in GUM Clinic, HKL were treated with ceftriaxone, and subsequent cultures on follow-up were negative. We compared our results with the data obtained from the Gonococcal Resistance to Antimicrobials Surveillance Programme (GRASP)6 and the WHO Western Pacific Gonococcal Antimicrobial Surveillance Programme (GASP)7. Conclusion Penicillin and tetracycline resistance remain high in Malaysia and other Western Pacific countries. Resistance to ciprofloxacin was however lower in Malaysia compared to other countries. There was no resistance to ceftriaxone and cefuroxime. The current first line antibiotic for treating gonorrhoea in GUM Clinic, HKL is ceftriaxone.
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Thirty nine strains and 109 strains of Shigella sonnei were isolated from the outbreaks of Youngchun and Kyungju, respectively, while 15 strains were isolated from sporadic cases of eight regions in Kyungbuk province from September to November in 1998. We investigated the relationship among the S. sonnei strains by using biochemical characteristics, biotyping, antibiotic resistance pattern, and plasmid profile. Among the isolates, seven strains of S. sonnei isolated in Youngchun showed gelatin hydrolyase positive but the others showed gelatin hydrolyase negative. One hundred and fifty two strains were a type, while eleven among thirty nine strains isolated in Youngchun were g type. Antibiotics resistance patterns of S. sonnei strains isolated in Youngchun and Kyungju were significantly different. Thirty nine strains of S. sonnei isolated in Youngchun were resistant to SM, TE, and TMP/SMX, while eighty six of S. sonnei among one hundred and nine strains isolated in Kyungju were resistant to AM, CB, K, SM, TE, and TMP/SMX. Antibiotics resistance patterns of residual twenty three isolates were similar to those of eighty six strains. The Plasmid profiles of strains of S. sonnei isolated from the Kyungju were different from those of S. sonnei strains isolated in Youngchun. The Plasmid profiles of S. sonnei strains isolated from Youngchun were identical to those of a S. sonnei strains randomly selected from the outbreak in Daegu in 1998. The Plasmid profiles of S. sonnei strains isolated from Kyungju were identical to those of two strains of S. sonnei randomly selected from the outbreaks of Kanglung and Wonju in 1998. From the above results, it is considered that the strains of S. sonnei isolated from Kyungju and Youngchun region are not identical clone.