Urinary tract infection is commoner in patients with spinal cord injuries because of incomplete bladder emptying and the use of catheters that can result in the introduction of bacteria into the bladder. 145 patients suffering from spinal cord injuries, admitted to the Institute for physical medicine and rehabilitation, Centre for paraplegia of the Clinical Centre of the University of Sarajevo, were included. The patients were divided in three groups according to the method of bladder drainage: Group A (n=61) consisted of patients on clean intermittent catheterization; Group B (n=54) consisted of patients with indwelling catheters; Group C (n=30) consisted of patients who had performed self-catheterization. From a total of 4539 urine samples, 3963 (87,3%) were positive and 576 (12,7%) were sterile. More than 90% of the infected patients were asymptomatic. The overall rate of urinary infection amounted to about 2,1 episodes, and bacteriuria to 8,1 episodes per patient. 77% of infections (113/145) were acquired within seven days from catheterization. Infection was usually polymicrobial; the greatest number of urine samples 1770/3943 (44,9%) included more than one bacterium. The vast majority of cases of urinary tract infection and bacteriuria are caused by Gram-negative bacilli and enterococci, commensal organisms of the bowel and perineum, representative of those from the hospital environment. Providencia stuarti (18,9%) being the most common, followed by Proteus mirabilis (16,3%), Escherichia coli (11,8%), Pseudomonas aeruginosa (10,2%), Klebsiella pneumoniae (8,1%), Morganella morgani (5,4%), Acinetobacter baumannii (4,6%), Providencia rettgeri (3,5%). 15,7% of isolates were Gram-positive with Enterococcus faecalis (8,6%) as the most common. 55,3% of isolates were multidrug-resistant, and the highest rates of resistance were found among Acinetobacter baumannii (87,8%), Providencia rettgeri (86,7%), Pseudomonas aeruginosa (85,4%), Providencia stuarti (84,3%) and Morganella morgani (81,0%). Lower rates of resistance were found in Group C, i.e. patients on intermittent self-catheterisation. Eradication of organisms was achieved in only 53 (10,05%) of patients; hence, antibiotic therapy had no or very low effect. Significant correlations were found between the method of catheterization and the frequency of bacteriuria and urinary tract infections. The analysis of Group C showed a rate of lower urinary tract infection and bacteriuria than the other two Groups of patients. The objective of this study is the update of etiology and antimicrobial susceptibility in urinary tract infections in this group of patients. In addition, possible correlations between UTI and the type of bladder management were examined.
Fifty-seven nosocomial Klebsiella pneumoniae isolates producing extended-spectrum beta-lactamases (ESBLs) were collected between February 2007 and November 2007 in different wards of the Sarajevo (Bosnia-Herzegovina) reference hospital. These isolates comprise two major epidemic pulsed-field electrophoresis-defined clones plus two minor clones. In addition to the ESBL-mediated resistance, all strains uniformly showed resistance to ciprofloxacin, gentamicin and tobramycin. The beta-lactamases involved in this resistance phenotype were TEM-1, SHV-1, and CTX-M-15, as demonstrated by isoelectric focusing, PCR amplification, and sequencing. TEM-1 and CTX-M-15 beta-lactamases, as well as the aminoglycoside resistance determinants, were encoded in plasmids that could be transferred to Escherichia coli by conjugation. In three of the infected patients with the predominant clone, cefoxitin resistance development (MICs >128 mg/L) was documented. The analysis of the outer membrane proteins of the cefoxitin-susceptible and cefoxitin-resistant isolates revealed that the former expressed only one of the two major porins, OmpK36, whereas in the latter, the expression of Ompk36 was altered or abolished. This is the first report of CTX-M-15-producing K. pneumoniae in Bosnia-Herzegovina. Furthermore, we document and characterize for the first time cefoxitin resistance development in CTX-M-15-producing K. pneumoniae.
Diarrhoeal disease is a major cause of illness and death among infants and young children worldwide. Among the Escherichia coli (E. coli) causing intestinal diseases, there are six well-described categories: enteroaggregative E. coli (EAEC), diffusely adherent E. coli (DAEC), enteroinvasive E. coli (EIEC), enteropathogenic E. coli (EPEC), enterohaemorrhagic E. coli (EHEC) and enterotoxigenic E. coli (ETEC). The aim of the present study was to investigate the relative contribution of different groups of diarrhoeagenic E. coli (DEC) in paediatric patients with diarrhoea. Clinical stool specimens from 380 children with diarrhoea, with ages ranging from birth to < 12 years, were selected for the study over a period of 17 months (August 2007 to December 2008). The study showed that 85/380 children (22%) had diarrhoea due to diarrhoeagenic E. coli. The most prevalent was enteropathogenic E. coli (EPEC) isolated from 46/85 paediatric patients (54%), followed by enterotoxigenic (ETEC) isolated from 19/85 (22.3%), enterohaemorrhagic (EHEC) from 18/85 (21.1%) and enteroinvasive (EIEC) from 2/85 patients (2.3%). The most prevalent serotypes of EPEC were O86:K61 and O44:K74 isolated from 10/46 (21.7%), O128:K67 from 6/46 patients (13%), followed by O158:K- and O126:K71 isolated from 4/46 patients (8.6%). Among the ETEC the most prevalent serotypes were O78:K80 isolated from 10/19 (56.7%) and O25:K11 from 9/19 patients (47.3%), especially during the first twelve months: 9/19 patients (47.3%). The most prevalent EHEC strain found in this study was O145:K- and O103:K-: 5/18 patients (27.8%). Two isolated strains of EIEC belong to serotype O164:K-. The average age of the patients was 2 years. Two patients with bloody diarrhoea had EHEC serotype O157:H7 which progressed to haemolytic-uremic syndrome (HUS). Our study shows that diarrhoeagenic E. coli is a significant causal agent of diarrhoeal diseases in paediatric patients in Bosnia and Herzegovina. This study is the first report about the frequency and most common serotypes of DEC in Bosnia and Herzegovina. Additionally, it is the first report of cases with an O157:K- infection which progressed to HUS, a serious and potentially fatal illness.
A measles outbreak with two epidemic waves involving 4649 probable and laboratory-confirmed cases was recorded in six out of ten cantons of the Federation of Bosnia and Herzegovina between February 2014 and April 2015. The majority of the patients had never received measles vaccination (3115/4649, 67.00%), and the vaccination status of another 23% was unknown (1066/4649). A total of 281 blood samples were tested serologically. Virus detection was performed using 44 nasopharyngeal swabs. About 57% (161/281) of the laboratory-investigated sera were immunoglobulin M positive, and 95% (42/44) of the swabs were reverse transcriptase-PCR positive. Phylogenetic analysis of sequences obtained from 30 swab samples showed circulation of two variants of genotype D8, but no genotype D4 strains as detected in 2007. Similar involvement of all age groups indicates a problem with vaccine refusal resulting from antivaccination activities in addition to gaps in immunization coverage during the war and postwar period (1992-1998). Differences in ethnicity, vaccine coverage, compliance with review policies of vaccination records and potentially also travel habits may partially explain why only six of ten cantons were affected by the outbreak. The second epidemic wave may in part be due to large-scale migrations due to catastrophic floods in 2014. As a result of the epidemic, 6- to 12-month-old children may now be vaccinated against measles during outbreaks, and public health recommendations for interventions have been strengthened. Additional efforts are required to implement the measures throughout the cantons.
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