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Getie M, Gebre-Selassie S, Getu Y, Birara S, Tiruneh C, Abebaw A, Akelew Y, Abeje G, Enkobahry A. Bacterial profile and extended spectrum beta lactamase screening of urinary tract infection among asymptomatic and symptomatic pregnant women attending antenatal care in ALERT Hospital, Addis Ababa, Ethiopia. SAGE Open Med 2023; 11:20503121231197587. [PMID: 37933290 PMCID: PMC10625732 DOI: 10.1177/20503121231197587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 08/10/2023] [Indexed: 11/08/2023] Open
Abstract
Introduction The occurrence of extended spectrum beta lactamase-producing uropathogens, especially in pregnant women can result in life-threatening condition and morbidity for both the mother and the newborn due to very limited drug options for treatment of these pathogens. The aim of this study was to determine the bacterial profile, associated factors, and their antimicrobial susceptibility patterns and to identify extended spectrum beta lactamase-producing bacterial uropathogens. Methods A hospital-based cross-sectional study was conducted from July to September 2018 on a total of 177 pregnant women with and without symptoms of urinary tract infection at ALERT Hospital, Addis Ababa, Ethiopia. From these study participants, 72 have symptoms, whereas 105 have no symptoms. All urine samples were inoculated onto cysteine lactose electrolyte deficient medium and MacConkey agar. Colonies were counted to check the presence of significant bacteriuria. Pure isolates of bacterial pathogen were characterized and identified at species level by colony morphology, gram stain, and standard biochemical procedures. All Gram-negative isolates were put into Muller-Hinton agar plates for antibiotic susceptibility test by Kirby-Bauer disc diffusion technique. Extended spectrum beta lactamase was detected using double-disk synergy methods on Muller-Hinton agar. The data were double entered into epidemiological Information system and analyzed using Statistical Package for Social Science version 26. Results The overall proportion of urinary tract infection among pregnant women was 14.7% (n = 26/177). Klebsiella pneumoniae was the predominant bacterial etiologic agent of urinary tract infection 26.9% (n = 7/26). The proportion of extended spectrum beta lactamase among Gram-negative isolates was 50% (n = 6/12). Among extended spectrum beta lactamase-producing isolates (100%), all are resistance to amikacin and gentamicin while intermediate level resistance rate of 66.7% was observed among trimethoprim-sulphamethoxazole. They were susceptible for some limited drugs, and these were Nitrofurantoin (83.3%) and Chloramphenicol (83.3%). Conclusions Majority of extended spectrum beta lactamase-producing isolates exhibited co-resistance to other commonly prescribed antibiotics. This indicates that the option of treatment for these pathogens rapidly decreased from time to time which results serious life-threatening conditions, especially in mother and newborn unless the appropriate measure is taken.
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Affiliation(s)
- Molla Getie
- Departments of Medical Laboratory Science, Injibara University, Injibara, Ethiopia
| | - Solomon Gebre-Selassie
- Department of Microbiology, Immunology and Parasitology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Yemeserach Getu
- Department of Medical Laboratory/Microbiology Unit, ALERT Hospital, Addis Ababa, Ethiopia
| | - Setognal Birara
- Department of Epidemiology and Biostatics’, University of Gonder, Gonder, Ethiopia
| | - Chalachew Tiruneh
- Departments of Biomedical Science, Injibara University, Injibara, Ethiopia
| | - Abtie Abebaw
- Department of Medical Laboratory Science, Debere Markose University, Debere Markose, Ethiopia
| | - Yibeltal Akelew
- Department of Medical Laboratory Science, Debere Markose University, Debere Markose, Ethiopia
| | - Getu Abeje
- Departments of Biomedical Science, Samara University, Samara, Ethiopia
| | - Aklesya Enkobahry
- Departments of Biomedical Science, Injibara University, Injibara, Ethiopia
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Adedze-Kpodo RK, Feglo PK, Agboli E, Asmah RH, Kwadzokpui PK. Genotypic characterization of extended-spectrum β-lactamase producing urinary isolates among pregnant women in Ho municipality, Ghana. Heliyon 2022; 8:e12513. [PMID: 36593819 PMCID: PMC9803828 DOI: 10.1016/j.heliyon.2022.e12513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/05/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Objective The case of antibiotic resistance has become a major global concern and Extended Spectrum β-lactamase (ESBL) producing organisms have so far remained the biggest culprit. The consequences of urinary tract infection (UTI) and antibiotic resistance among pregnant women cannot be underestimated. We investigated UTI and ESBL production among urinary pathogens isolated from pregnant women. Method We obtained non-repeat, clean catch midstream urine samples from 1345 pregnant women suspected of having UTI for bacterial identification at the Ho Teaching Hospital Laboratory between June 2013 and March 2015. The isolates were taken through relevant biochemical testing for identification and then subjected to antimicrobial agents for susceptibility testing using the disc diffusion method. We tested for ESBL production by the combined disc method and ESBL positive (+ESBL) phenotype isolates were genotyped for BlaTEM, BlaSHV, and BlaCTX-M using polymerase chain reaction (PCR). Data were analyzed using SPSS v24 and p-values < 0.05 were considered statistically significant. Results Of the 1345 urine samples tested, 230 (17.1%, 95% CI: 15.1%-19.1%) yielded significant bacteriuria. The most common bacterium isolated was Staphylococcus aureus (29.6%) followed closely by Escherichia coli (28.7%) both of which were highest during the second trimester of gestation. We isolated 152 gram-negative isolates with 41.4% (63/230) being + ESBL. Of the 63 + ESBL, 45 (71.4%) possessed blaTEM, 42 (66.7%) had blaCTX-M and 2 (3.2%) possessed blaSHV genes; 38 possessed multiple ESBL genes comprising 2 with both SHV and TEM genes and 36 with both CTX-M and TEM genes. Conclusion High prevalence of UTI and persistent transmission of ESBLs among pregnant women in the Ho Municipality is worrying and a course for public health concern. We recommend urine culture during pregnancy as a routine laboratory investigation to avoid birth-related complications.
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Affiliation(s)
| | - Patrick K. Feglo
- Department of Clinical Microbiology, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Eric Agboli
- Department of Epidemiology and Biostatistics, School of Public Health, University of Health and Allied Sciences, Ho, Ghana
| | - Richard H. Asmah
- College of Health Sciences, School of Biomedical and Allied Health Sciences, University of Ghana, Legon, Ghana
| | - Precious K. Kwadzokpui
- Department of Medical Laboratory Science, School of Allied Health Sciences, University of Health and Allied Sciences, Ho, Ghana,Medical Laboratory Department, Ho Teaching Hospital, Ho, Ghana,Corresponding author.
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Seni J, Peirano G, Mshana SE, Pitout JDD, DeVinney R. The importance of Escherichia coli clonal complex 10 and ST131 among Tanzanian patients on antimicrobial resistance surveillance programs. Eur J Clin Microbiol Infect Dis 2021:10.1007/s10096-021-04271-w. [PMID: 34009529 DOI: 10.1007/s10096-021-04271-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/04/2021] [Indexed: 11/29/2022]
Abstract
The objective of this study was to characterize antimicrobial resistance (AMR) of WHO priority 1 critical pathogen (extrapathogenic Escherichia coli (ExPEC), sequence types (STs), and ST131 clades from patients in Tanzania so as to guide specific antimicrobial therapies and preventive measures. A total of 143 ExPEC strains (128 from pregnant women with urinary tract infections and 15 from children with blood stream infections) were collected between March 2016 and October 2017. These were characterized into ST-fimH clones by a 7-single nucleotide polymorphism quantitative polymerase chain reaction (7-SNP qPCR) and gene sequencing, and to ST131 clades by multiplex PCR. The extended-spectrum beta-lactamases (ESBL) production was 16.1% (23/143), and was predominantly due to the blaCTX-M-15 (91.3%, n=21). ESBL production was significantly more among strains from children (53.3%) than pregnant women (11.7%) (OR (95%CI): 8.61 (2.73-27.15); p-value <0.001)). Approximately 61.5% (n=88) ExPEC were typed into their respective STs/CCs (87 by the 7-SNP qPCR and by an additional of one or two genes sequencing). The commonest STs/CCs among typeable strains were CC10 (28.4%, n=25), ST131 (18.2%, n=16), and ST38 (10.2%, n=9). The ST131 clades (C1 (4, 25.0%) and C2 (6, 37.5%)) were predominantly associated with fluoroquinolone resistance and ESBL production, respectively. Approximately 60.8% of ExPEC strains and all dominant clones were typed by the 7-SNP qPCR by additional sequencing. The multiplex clade PCR allowed linkage of the global clone ST131 with AMR phenotypes. These feasible and user-friendly molecular tools can be routinely used for surveillance programs in resource-limited settings.
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Affiliation(s)
- Jeremiah Seni
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza, Tanzania.
| | - Gisele Peirano
- Division of Microbiology, Calgary Laboratory Services, Calgary, AB, Canada
| | - Stephen E Mshana
- Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza, Tanzania
| | - Johann D D Pitout
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Division of Microbiology, Calgary Laboratory Services, Calgary, AB, Canada
- University of Pretoria, Pretoria, Gauteng, South Africa
| | - Rebekah DeVinney
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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A systematic review and meta-analysis on the prevalence of Escherichia coli and extended-spectrum β-lactamase-producing Escherichia coli in pregnant women. Arch Gynecol Obstet 2021; 303:363-379. [PMID: 33386957 DOI: 10.1007/s00404-020-05903-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/17/2020] [Indexed: 01/05/2023]
Abstract
PROPOSE The aim of the present study was to determine the prevalence of E. coli and extended-spectrum β-lactamase-producing (ESBL) E. coli in pregnant women in a systematic review and meta-analysis study. METHODS We searched important databases, including Medline (PubMed), Embase, Scopus, Web of sciences, Cochrane library, Ovid, and CINHAL to retrieve all articles reporting the prevalence of ESBL E. coli in pregnant women that published from January 1990 to June 2020. RESULTS The pooled prevalence of E. coli in pregnant women with and without symptoms of UTI after combining 82 studies with a sample size of 33,118 was 29% (29%; %95 CI 23, 36%). The prevalence based on urine, Feacal, and vagina samples was 26% (% 95 CI 19-34%), 77% (% 95 CI 22-98%), and 32% (% 95 CI 17-48%), respectively. Also, 19 studies with a sample size of 9,200 reported ESBL E. coli prevalence in pregnant women. After combining the results of these studies, the pooled prevalence of ESBL E. coli in pregnant women was 34% (34%; %95 CI 24, 43%). The pooled prevalence of E. coli in pregnant women with HIV was 9%(9%; %95 CI 7, 11%). CONCLUSION According to the results of this study, the prevalence of E. coli and ESBL E. coli is high in pregnant women. Also, the overuse of antibiotics was higher in European and Asian pregnant women than other continents.
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Emami A, Javanmardi F, Pirbonyeh N. Antibiotic resistant profile of asymptomatic bacteriuria in pregnant women: a systematic review and meta-analysis. Expert Rev Anti Infect Ther 2020; 18:807-815. [PMID: 32321329 DOI: 10.1080/14787210.2020.1759420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Different microorganisms contribute in the pregnancy bacteriuria, which resistance microorganisms limited the therapeutic options for the treatment and increasing the related risks to pregnant women and their pregnancy. Based on this, asymptomatic bacteriuria and the use of inappropriate empirical antibiotics are dangerous in the emergence of pregnancy complications and the incidence of drug resistant. METHODS A comprehensive systematic search was performed on all international databases including Scopus, PubMed, Web of Science, Medline, Cochrane library during 2000 - June 2019. This meta-analysis, which was registered by a pre-defined protocol in PROSPRO, carried out in accordance with PRISMA guideline. Relevant articles were included in the analysis if reported the susceptibility pattern of antimicrobial resistance related to asymptomatic bacteria in pregnant women with no acute diseases. Overall prevalence and related 95% confidence interval for resistance in different asymptomatic infections were estimated by inverse variance method. The random effect model was used in case of considerable heterogeneity. RESULTS Results of this analysis demonstrated different resistance rate against studied classes of antibiotics. Nitrofurantoin resistance in E. coli, Klebsiella sp, P. aeruginosa, and Staphylococcus aureus isolates were estimated 0.22 (95%CI: 0.15-0.30), 0.40 (95%CI: 0.26-0.54), 0.81 (95%CI: 0.59-0.97), 0.34 (0.11-0.63), respectively. Subgroups analysis showed highest resistance in E. coli isolates, in Asia and Africa against Cefotaxime and Ampicillin, respectively. CONCLUSION In summary, increasing resistance rate in urinary tract infection (UTI)-related agents is a risk factor that endangers both mother and fetus. Health care providers should consider screening as the radical part of infection control strategies. Due to low resistance rate to Nitrofurantoin, this drug can be a good choice for UTI treatment in pregnancies, but it should use with caution.
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Affiliation(s)
- Amir Emami
- Burn & Wound Healing Research Center, Microbiology Department, Shiraz University of Medical Sciences , Shiraz, Iran
| | - Fatemeh Javanmardi
- Burn & Wound Healing Research Center, Microbiology Department, Shiraz University of Medical Sciences , Shiraz, Iran
| | - Neda Pirbonyeh
- Burn & Wound Healing Research Center, Microbiology Department, Shiraz University of Medical Sciences , Shiraz, Iran
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Rejali M, Ahmadi SS. Prevalence and Risk Factors of Urinary Tract Infection among Pregnant Women in Shahrekord, Iran. INTERNATIONAL JOURNAL OF EPIDEMIOLOGIC RESEARCH 2019. [DOI: 10.15171/ijer.2019.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background and aims: This study aimed to determine the prevalence of urinary tract infection (UTI) among the pregnant women and the risk factors related to it in Shahrekord, Iran. Methods: In this cross-sectional study, 832 patients were examined during 26 to 30 weeks of pregnancy and their UTIs were studied. The required information was collected by examining the personal pregnancy health records and completion of the data registration forms. All statistical analyses were performed in SPSS software version 23.0 using chi-square and independent t test. Results: According to the results of this study, out of 832 pregnant women, 109 were diagnosed with UTI; hence the prevalence of UTI was recorded to be 13.1% in this study. Moreover, there was a significant relationship between UTI and variables of delivery, severe nausea and vomiting during pregnancy (known as morning sickness), genitourinary disorders, infertility, and blood group. Conclusion: According to the study results, it seems that screening and treatment of UTIs have been done appropriately and in the right time, in health systems of the city of Shahrekord which have led to the reduction of disorders in infants, as well as maternal diseases. Even in the absence of any UTIrelated symptoms, screening tests for UTI are recommended
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Affiliation(s)
- Mehri Rejali
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyede Soghra Ahmadi
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
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Urinary Tract Infections and Preeclampsia among Pregnant Women Attending Two Hospitals in Mwanza City, Tanzania: A 1:2 Matched Case-Control Study. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3937812. [PMID: 31032344 PMCID: PMC6457296 DOI: 10.1155/2019/3937812] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/10/2019] [Indexed: 12/23/2022]
Abstract
Urinary tract infection (UTI) and preeclampsia are common among pregnant women and are associated with adverse maternal-fetal and neonatal outcomes. Despite this, limited information exists on the association between UTIs and preeclampsia in Tanzania to guide specific management and thereby averting the adverse outcomes. A 1:2 matched case-control study (by age and gravidity) involving 131 pregnant women with preeclampsia (cases) and 262 without preeclampsia (controls) was conducted. Sociodemographic and clinical information was collected using a questionnaire. Midstream urine samples were collected during admission for culture and antimicrobial susceptibility testing (AST). Out of 393 pregnant women enrolled, 110 (28.0%), 95% CI: 23.8%-32.7%, had significant bacteriuria [cases: 50.4% (66/131) and control: 16.8% (44/262)]. Pregnant women with preeclampsia had 7.7 odds of having significant bacteriuria than those without preeclampsia [OR=7.7, 95% CI (4.11-14.49); p-value <0.001]. Escherichia coli, 50 (45.5%), and Klebsiella spp., 25 (23.6%), predominated, and resistance to gentamicin, ceftriaxone, and piperacillin-tazobactam ranged from 9.0% to 29.0% in these dominant species. Extended spectrum beta lactamases (ESBL) production in Escherichia coli and Klebsiella spp. was 18.0% (9/50) and 15.4% (4/26), respectively. Routine urine culture and AST among pregnant women with preeclampsia should be introduced in the antenatal clinics to ensure prompt management. Delineation of maternal-fetal and neonatal outcomes among pregnant women with preeclampsia and UTIs would be of interest in future studies.
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Seni J, Tito JN, Makoye SJ, Mbena H, Alfred HS, van der Meer F, Pitout JDD, Mshana SE, DeVinney R. Multicentre evaluation of significant bacteriuria among pregnant women in the cascade of referral healthcare system in North-western Tanzania: Bacterial pathogens, antimicrobial resistance profiles and predictors. J Glob Antimicrob Resist 2019; 17:173-179. [PMID: 30625416 DOI: 10.1016/j.jgar.2018.12.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/06/2018] [Accepted: 12/29/2018] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES The aim of this multicentre study was to evaluate the magnitude of significant bacteriuria (SB) as well as the implicated bacterial pathogens, antimicrobial resistance (AMR) profiles and risk factors for SB among pregnant women attending different levels of healthcare facilities (HCFs) in Tanzania in order to guide antimicrobial therapy and preventive measures. METHODS Information on sociodemographic and clinical characteristics, midstream urine culture and antimicrobial susceptibility testing was collected from 1828 pregnant women between March 2016 and May 2017. Data were analysed using STATA v.13.0 software. RESULTS The prevalence of SB among pregnant women was 17.7% (323/1828; 95% CI 16.0-19.5%), with a predominance of Escherichia coli (164/323; 50.8%), Klebsiella spp. (55/323; 17.0%) and Staphylococcus aureus (28/323; 8.7%). Moreover, 37.5% (121/323) of bacteria were multidrug-resistant [84.3% (102/121) Gram-negative bacteria and 15.7% (19/121) in Gram-positive bacteria; P<0.001]. Third-generation cephalosporin resistance in E. coli, Klebsiella spp. and other Enterobacteriaceae was 13.4%, 21.8% and 27.5%, respectively, and was higher in strains from a tertiary hospital (OR=3.27, 95% CI 1.02-10.49; P=0.046) compared with lower HCFs. Predictors of SB among pregnant women were lack of formal occupation, current hospital admission and presence of co-morbidities. CONCLUSIONS The prevalence of SB among pregnant women in this study was high (17.7%) and was within the same range reported 10 years ago in a single-centre baseline study. However, there is an increase in AMR in the cascade of referral healthcare system, underscoring the need for health facility level-specific antimicrobial stewardship.
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Affiliation(s)
- J Seni
- Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences (CUHAS), P.O. Box 1464, Mwanza, Tanzania; Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB T2N 4N1, Canada.
| | - J N Tito
- Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences (CUHAS), P.O. Box 1464, Mwanza, Tanzania
| | - S J Makoye
- Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences (CUHAS), P.O. Box 1464, Mwanza, Tanzania
| | - H Mbena
- Department of Obstetrics and Gynaecology, Bugando Medical Centre (BMC), P.O. Box 1370 and Catholic University of Health and Allied Sciences (CUHAS), P.O. Box 1464, Mwanza, Tanzania
| | - H S Alfred
- Sengerema District Designated Hospital, P.O. Box 20, Sengerema, Mwanza, Tanzania
| | - F van der Meer
- Faculty of Veterinary Medicine: Ecosystem and Public Health, University of Calgary, Calgary, AB, Canada
| | - J D D Pitout
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB T2N 4N1, Canada
| | - S E Mshana
- Department of Microbiology and Immunology, Weill-Bugando School of Medicine, Catholic University of Health and Allied Sciences (CUHAS), P.O. Box 1464, Mwanza, Tanzania
| | - R DeVinney
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB T2N 4N1, Canada
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Mamuye Y. Antibiotic Resistance Patterns of Common Gram-negative Uropathogens in St. Paul's Hospital Millennium Medical College. Ethiop J Health Sci 2017; 26:93-100. [PMID: 27222621 PMCID: PMC4864337 DOI: 10.4314/ejhs.v26i2.2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background The resistance of bacteria causing urinary tract infection (UTI) to commonly prescribed antibiotics is increasing both in developing and developed countries. Resistance has emerged even to more potent antimicrobial agents. This study was undertaken to determine the current antibiotic resistance pattern among common bacterial uropathogens in St.paul's Hospital Millennium Medical College. Methods Using cross sectional study design, a total of 217 female and 207 male participants were consecutively recruited. Mid-urine samples were collected from all patients using wide mouthed urine cup. Inoculation was performed onto blood agar and MacConkey agar symoultaniously, and isolated organisms were identified by conventional methods. Antibiotic susceptibility was done by Kirby Bauer disk diffusion method. Thirteen different antibiotics representing different families of antibiotics were tested on all isolated organisms. Results Of the total 424 samples, 95(22.4%) showed significant growth. Gram negative organisms totaled 85(20.05%), and 10(2.4%) isolates were gram positive. The most frequently isolated gram negative bacterium was E. coli followed by Protues and Klebsiella spp. 53(12.5%), 8(8.4%), and 7(7.4%) respectively. Resistance to Tetracyclin, Ampicilin, Amoxycilin and Nalidixic Acid was more than 70% of all isolates of E.coli strains. There was relatively low resistance rate to Nitrofurantoin, Gentamycin and Trimethoprim-Sulfamethoxazole. However, there was emerging resistance to Ciprofloxacilin and Ceftriaxone especially for common bacteruria. Conclusion In this study setting, resistant rates to Tetracyclin, Ampicilin, Amoxycilin and Nalidixic Acid were high. Since most isolates were sensitive for Nitrofurantoin, Gentamycin and Trimethoprim-Sulfamethoxazole, they are considered as appropriate antimicrobials for empirical treatment for urinary tract infections with the absence of culture and sensitivity setting. Increasing antibiotic resistance trends indicate that it is imperative to rationalize the use of antimicrobials in the community and use these conservatively.
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Affiliation(s)
- Yeshwondm Mamuye
- Department of Microbiology St. Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia
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Urinary Tract Infections among HIV-Positive Pregnant Women in Mwanza City, Tanzania, Are High and Predicted by Low CD4+ Count. Int J Microbiol 2017; 2017:4042686. [PMID: 28255302 PMCID: PMC5307130 DOI: 10.1155/2017/4042686] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 01/12/2017] [Indexed: 11/17/2022] Open
Abstract
Introduction. Urinary tract infection (UTI) among pregnant women can lead to adverse maternal and foetal outcomes. UTI has been widely studied in the general obstetric population in Tanzania; the present study evaluated the magnitude, antimicrobial resistance, and predictors of UTI among HIV-positive pregnant women. Methods. Between March and May 2016 midstream urine samples from 234 women attending prevention of mother to child transmission of HIV (PMTCT) clinics were analyzed using standard methods. Data was analyzed by STATA version 11.0. Results. The prevalence of UTI was 21.4%, 50/234 [95% CI: 16.1–26.6]. The asymptomatically significant bacteriuria was higher than symptomatically significant bacteriuria (16.6% versus 4.7%, p < 0.001). On multivariable logistic regression analysis, single marital status (OR: 2.6, 95% CI: 1.1–6.1, and p = 0.026), low CD4+ counts of <200/μL (OR: 2.9, 95% CI: 1.1–7.7, and p = 0.031), and having UTI symptoms (OR: 2.5, 95% CI: 1.1–6.0, and p = 0.03) were independent predictors of UTI. Escherichia coli predominated (57.7%) and exhibited a low prevalence of resistance to nitrofurantoin (16.7%), gentamicin (10.0%), and ceftriaxone (13.3%). Four (13.3%) of these were extended-spectrum beta-lactamase producers. Conclusions. A considerable proportion of HIV-positive pregnant women in Mwanza have significant bacteriuria which calls for the need to introduce routine UTI screening at PMTCT clinics to guide specific treatment and prevent associated complications.
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Nguyen JTU, Green A, Wilson MR, DeRisi JL, Gundling K. Neurologic Complications of Common Variable Immunodeficiency. J Clin Immunol 2016; 36:793-800. [PMID: 27704236 DOI: 10.1007/s10875-016-0336-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 09/15/2016] [Indexed: 12/12/2022]
Abstract
Common variable immunodeficiency is a rare disorder of immunity associated with a myriad of clinical manifestations including recurrent infections, autoimmunity, and malignancy. Though rare, neurologic complications have been described in a small number of case reports and case series of CVID patients. In this article, we present a patient with CVID who suffered significant neurologic morbidity and categorize the reported range of neurologic complications associated with CVID. Our case highlights the complex nature of neurologic manifestations in CVID patients, and our review of the current database suggests that infection and inflammatory neurologic disorders are the cause of most neurologic presentations.
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Affiliation(s)
- Jenna Thuc-Uyen Nguyen
- Division of Allergy and Immunology, University of California, San Francisco, 400 Parnassus Ave, San Francisco, CA, 94143, USA.
| | - Ari Green
- Department of Neurology, University of California, San Francisco, CA, USA.,Department of Ophthalmology, University of California, San Francisco, CA, USA
| | - Michael R Wilson
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Joseph L DeRisi
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA.,Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Katherine Gundling
- Division of Allergy and Immunology, University of California, San Francisco, 400 Parnassus Ave, San Francisco, CA, 94143, USA
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Rana F, Siddiqui S, Khan A, Siddiqui F, Noreen Z, Bokhari S, Bokhari H. Resistance patterns of diversified phylogroups of Escherichia coli associated with mothers having history of preterm births in Pakistan. J Matern Fetal Neonatal Med 2016; 30:68-73. [DOI: 10.3109/14767058.2016.1163538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Najjuka CF, Kateete DP, Kajumbula HM, Joloba ML, Essack SY. Antimicrobial susceptibility profiles of Escherichia coli and Klebsiella pneumoniae isolated from outpatients in urban and rural districts of Uganda. BMC Res Notes 2016; 9:235. [PMID: 27113038 PMCID: PMC4843195 DOI: 10.1186/s13104-016-2049-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 04/18/2016] [Indexed: 01/22/2023] Open
Abstract
Background Antimicrobial resistance is a global public health concern contributing to increased morbidity and mortality particularly in low-income countries. Studies on commensal bacteria are important as they reflect the state of antimicrobial susceptibility patterns in populations. However, susceptibility data on potentially pathogenic commensal bacteria from individuals in communities are still limited. The aim of this cross-sectional study was to determine the susceptibility profiles of Escherichia coli and Klebsiella species isolated from clients attending outpatient clinics in Kampala (urban district) and two rural districts of Uganda, Kayunga and Mpigi. Factors associated with such carriage are also reported. Results A total of 1448 participants were recruited into the study with 985 yielding organisms of interest from stool or urine samples (one per client). Most growth occurred from stool samples (636/985, 87 %), of which 620/636 (97 %) grew E. coli while 16 (3 %) were Klebsiella pneumoniae. Growth from urine was 349/985 (35 %) of which 310/349 (89 %) were E. coli while 39 (11 %) K. pneumoniae. High rates of antimicrobial resistance were detected among E. coli and Klebsiella isolates combined: sulphamethoxazole/trimethoprim 70 %, amoxicillin/clavulanate 36 %, chloramphenicol 20 %, ciprofloxacin 11 %, gentamicin 11 %, nitrofurantoin 4 %, ceftriaxone 3 %, piperacillin/tazobactam 27 %, cefoxitin 22 %, and cefepime 15 %. Multidrug resistance was noted in 33 % of the isolates. None of the isolates were resistant to imipenem. Overall, isolates from Kampala were more resistant to antimicrobials. Across the three districts combined, isolates producing beta-lactamase enzymes extended spectrum β-lactamase-(ESBL) and AmpC comprised 5.3 and 13.2 %, respectively. Further, medical procedures involving inoculation were independent risk factors [aOR 50.76 (1.80, 1432.90)] while residing in a rural district and use of sulphamethoxazole/trimethoprim 3 months prior to visiting the outpatient clinics were protective against carriage of multidrug resistant isolates. Furthermore, use of gentamicin was protective against AmpC producing isolates while clients attending HIV/AIDs clinics were less likely to carry such isolates. No factor was independently associated with carriage of ESBL-producing isolates. Conclusion Antimicrobial resistance is prevalent among E. coli and K.pneumoniae carried in the gut of clients attending outpatient clinics in Kampala and two rural districts in Uganda. This could complicate treatment options for community-acquired infections caused by the Enterobacteriaceae. Electronic supplementary material The online version of this article (doi:10.1186/s13104-016-2049-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christine F Najjuka
- Department of Medical Microbiology, School of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda.
| | - David P Kateete
- Department of Medical Microbiology, School of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda.,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Henry M Kajumbula
- Department of Medical Microbiology, School of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Moses L Joloba
- Department of Medical Microbiology, School of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda.,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Sabiha Y Essack
- Antimicrobial Research Unit, School of Health Sciences, University of KwaZulu-Natal, Westville, Durban, South Africa
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Mekapogu NP, Gundela S, Avula RD. Diabetes Mellitus has no Significant Influence on the Prevalence of Antenatal Asymptomatic Bacteriuria. J Clin Diagn Res 2016; 10:DC16-20. [PMID: 27190802 PMCID: PMC4866100 DOI: 10.7860/jcdr/2016/14939.7632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/18/2015] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Diabetes is a known risk factor for asymptomatic bacteriuria (ASB). However, the influence of diabetes on antenatal ASB was previously not addressed. AIM The prevalence of ASB, effect of risk factors and type of isolates and susceptibility patterns were studied in diabetic pregnancy. MATERIALS AND METHODS A total of 311 pregnant women were recruited for this study of which 103 were diabetic and 208 non-diabetic. A clean catch midstream urine samples were collected and cultured. The isolates were identified and antibiotic sensitivity was studied. The data was analysed by Chi-square test. RESULTS The prevalence of ASB in diabetic pregnancy was 38.83% (40/10(3); 95% CI: 23.73 - 53.94) and in non-diabetic pregnancy was 37.98% (79/208; CI: 27.28- 48.68). The odds ratio was not significant 1.0225 (95% CU: 0.65 - 1.599; p=0.922) and associated factors such as age and gestational period had no effect. The major isolates were Escherichia coli (25.0%), Staphylococcus aureus (22.5%), Coagulase negative staphylococci (CONS) (20.00%), and Klebsiella pneumonia (20.00%) in diabetic pregnancy and CONS (31.7%), E.coli (24.0%) and K.pneumonia (16.5%) in non-diabetic pregnancy. The isolates of diabetic pregnancy showed highest susceptibility to nitrofurantoin (56.4%), gentamicin (38.5%) and cotrimoxazole (38.5%) whereas that of non-diabetic pregnancy to gentamicin (43.0%), azithromycin (32.9%) and norfloxacin (30.4). There was no significant (p<0.05) difference in the type and susceptibly of the isolates between diabetic and non-diabetic pregnancy. CONCLUSION Diabetes has no significant influence on the prevalence of ASB in diabetic pregnancy both in terms of isolates and antibiotic susceptibility pattern.
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Affiliation(s)
- Nissi Priya Mekapogu
- Postgraduate Scholar, Department of Microbiology, Kurnool Medical College, Kurnool, Andhra Pradesh, India
| | - Swarnalatha Gundela
- Professor and Head, Department of Microbiology, Kurnool Medical College, Kurnool, Andhra Pradesh, India
| | - Renuka Devi Avula
- Associate Professor, Department of Microbiology, Kurnool Medical College, Kurnool, Andhra Pradesh, India
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Gilbert NM, O'Brien VP, Hultgren S, Macones G, Lewis WG, Lewis AL. Urinary tract infection as a preventable cause of pregnancy complications: opportunities, challenges, and a global call to action. Glob Adv Health Med 2014; 2:59-69. [PMID: 24416696 PMCID: PMC3833562 DOI: 10.7453/gahmj.2013.061] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The urinary tract is a common site of infection in humans. During pregnancy, urinary tract infection (UTI) is associated with increased risks of maternal and neonatal morbidity and mortality, even when the infection is asymptomatic. By mapping available rates of UTI in pregnancy across different populations, we emphasize this as a problem of global significance. Many countries with high rates of preterm birth and neonatal mortality also have rates of UTI in pregnancy that exceed rates seen in more developed countries. A global analysis of the etiologies of UTI revealed familiar culprits as well as emerging threats. Screening and treatment of UTI have improved birth outcomes in several more developed countries and would likely improve maternal and neonatal health worldwide. However, challenges of implementation in resource-poor settings must be overcome. We review the nature of the barriers occurring at each step of the screening and treatment pipeline and highlight steps necessary to overcome these obstacles. It is our hope that the information compiled here will increase awareness of the global significance of UTI in maternal and neonatal health and embolden governments, nongovernmental organizations, and researchers to do their part to make urine screening and UTI treatment a reality for all pregnant women.
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Affiliation(s)
- Nicole M Gilbert
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St Louis, Missouri, United States
| | - Valerie P O'Brien
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St Louis, Missouri, United States
| | - Scott Hultgren
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St Louis, Missouri, United States
| | - George Macones
- Department of Obstetrics and Gynecology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St Louis, Missouri, United States
| | - Warren G Lewis
- Department of Medicine, Center for Women's Infectious Disease Research, Washington University School of Medicine, St Louis, Missouri, United States
| | - Amanda L Lewis
- Departments of Molecular Microbiology, Obstetrics and Gynecology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St Louis, Missouri, United States
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Mshana SE, Matee M, Rweyemamu M. Antimicrobial resistance in human and animal pathogens in Zambia, Democratic Republic of Congo, Mozambique and Tanzania: an urgent need of a sustainable surveillance system. Ann Clin Microbiol Antimicrob 2013; 12:28. [PMID: 24119299 PMCID: PMC3852305 DOI: 10.1186/1476-0711-12-28] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 10/08/2013] [Indexed: 11/25/2022] Open
Abstract
A review of the published and unpublished literature on bacterial resistance in human and animals was performed. Sixty-eight articles/reports from the Democratic Republic of Congo (DRC), Mozambique, Tanzania and Zambia were reviewed. The majority of these articles were from Tanzania. There is an increasing trend in the incidence of antibiotic resistance; of major concern is the increase in multidrug- resistant Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, Vibrio cholera, non-typhoid Salmonella and other pathogens responsible for nosocomial infections. The increase in methicillin- resistant Staphylococcus aureus and extended-spectrum beta-lactamase (ESBL) producers in the countries under review confirms the spread of these clones worldwide. Clinical microbiology services in these countries need to be strengthened in order to allow a coordinated surveillance for antimicrobial resistance and provide data for local treatment guidelines and for national policies to control antimicrobial resistance. While the present study does not provide conclusive evidence to associate the increasing trend in antibiotic resistance in humans with the use of antibiotics in animals, either as feed additives or veterinary prescription, we strongly recommend a one-health approach of systematic surveillance across the public and animal health sectors, as well as the adherence to the FAO (Food and Agriculture Organization)-OIE (World Organization of animal Health) –WHO(World Health Organization) recommendations for non-human antimicrobial usage.
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Affiliation(s)
- Stephen E Mshana
- Department of Microbiology/Immunology Weill Bugando School of Medicine, CUHAS-Bugando, Mwanza, Tanzania.
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Akoachere JFTK, Yvonne S, Akum NH, Seraphine EN. Etiologic profile and antimicrobial susceptibility of community-acquired urinary tract infection in two Cameroonian towns. BMC Res Notes 2012; 5:219. [PMID: 22564344 PMCID: PMC3528744 DOI: 10.1186/1756-0500-5-219] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Accepted: 04/19/2012] [Indexed: 11/10/2022] Open
Abstract
Background Urinary tract infection (UTI) represents one of the most common diseases encountered in community medical practice. In resource poor settings, treatment is usually empiric due to the high cost and long duration required for reporting diagnosis by culture and antibiotic susceptibility testing. With the growing problem of drug resistance knowledge of antibiotic susceptibility pattern is pertinent for successful eradication of invading pathogens. Our study, the first of its kind in Cameroon, analyzed the distribution and antibiotic susceptibility of bacteria causing community-acquired urinary tract infection (CAUTI) in two towns (Bamenda and Buea) with a large number of young and middle aged persons, to provide data that could guide empiric treatment. Findings We cultured 235 urine specimens and analyzed the antibiotic susceptibility of isolates by the disc diffusion technique. Uropathogens were recovered from 137 (58.3%), with prevalence rates in Buea and Bamenda being 65.9% and 54% respectively. Predominant pathogens were Escherichia coli (31.4%), Klebsiella oxytoca (25.5%) and Staphylococcus spp (24.1%). Geographic variation in uropathogen distribution and antibiotic susceptibility was observed, and a significant difference in pathogen distribution with respect to gender. The 20–39 years age group had the highest prevalence of infection. All pathogens isolated were detected in this group. Isolates exhibited low susceptibility to antibiotics tested. Bamenda isolates generally exhibited lower susceptibility compared to those from Buea. Conclusion Regional variation in etiology of CAUTI and antibiotic susceptibility observed in our study emphasizes the need to establish local and national antimicrobial resistance monitoring systems in Cameroon to provide information for the development of CAUTI treatment guidelines.
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Hamdan HZ, Ziad AHM, Ali SK, Adam I. Epidemiology of urinary tract infections and antibiotics sensitivity among pregnant women at Khartoum North Hospital. Ann Clin Microbiol Antimicrob 2011; 10:2. [PMID: 21244660 PMCID: PMC3032644 DOI: 10.1186/1476-0711-10-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2010] [Accepted: 01/18/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Urinary tract infections (UTI) can lead to poor maternal and perinatal outcomes. Investigating epidemiology of UTI and antibiotics sensitivity among pregnant women is fundamental for care-givers and health planners. METHODS A cross sectional study has been conducted at Khartoum north teaching hospital Antenatal Care Clinic between February-June 2010, to investigate epidemiology of UTI and antibiotics resistance among pregnant women. Structured questionnaires were used to gather data from pregnant women. UTI was diagnosed using mid stream urine culture on standard culture media RESULTS Out of 235 pregnant women included, 66 (28.0%) were symptomatic and 169 (71.9%) asymptomatic. the prevalence of bacteriuria among symptomatic and asymptomatic pregnant women were (12.1%), and (14.7%) respectively, with no significant difference between the two groups (P = 0.596), and the overall prevalence of UTI was (14.0%). In multivariate analyses, age, gestational age, parity, and history of UTI in index pregnancy were not associated with bacteriuria. Escherichia coli (42.4%) and S. aureus (39.3%) were the commonest isolated bacteria. Four, 2, 2, 3, 4, 2 and 0 out of 14 E. coli isolates, showed resistance to amoxicillin, naladixic acid, nitrofurantoin, ciprofloxacin, co-trimoxazole, amoxicillin/clavulanate and norfloxacin, respectively. CONCLUSION Escherichia coli were the most prevalent causative organisms and showing multi drug resistance pattern, asymptomatic bacteriuria is more prevalent than symptomatic among pregnant women. Urine culture for screening and diagnosis purpose for all pregnant is recommended.
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Affiliation(s)
| | | | | | - Ishag Adam
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
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19
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Imade PE, Izekor PE, Eghafona NO, Enabulele OI, Ophori E. Asymptomatic bacteriuria among pregnant women. NORTH AMERICAN JOURNAL OF MEDICAL SCIENCES 2010; 2:263-6. [PMID: 22574301 PMCID: PMC3347633 DOI: 10.4297/najms.2010.2263] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Asymptomatic bacteriuria is the significant presence of bacteria in the urine of an individual without symptoms. In pregnancy, the apparent reduction in immunity of pregnant women tends to encourage the growth of pathogens. AIM This study was carried out to determine the prevalence of asymptomatic bacteriuria in pregnant women attending a primary health centre in Benin City, Nigeria. MATERIALS AND METHODS A total of 1,228 pregnant women were recruited for this study. All subjects were clinically identified to have no signs and symptoms of UTI. Clean catch midstream urine sample was collected from each patient into sterile universal container. The urine samples were examined microscopically and by cultural method. Identification of isolates was by standard microbiological technique. RESULT A total of 556 (45.3%) were positive for significant bacteriuria. There was a significant difference in the prevalence of asymptomatic bacteriuria with respect to age (P < 0.0001). Trimester did not show any significant difference (P = 0.2006) in the prevalence of asymptomatic bacteriuria. Escherichia coli was the most predominant organism followed closely by Staphylococcus aureus. Ciprofloxacin, Ceftriaxone and Augmentin were found to be the most effective antibiotics against the urinary isolates. CONCLUSION Asymptomatic bacteriuria is not uncommon among antenatal patients in the population studied. Routine urine cultural test should be carried out on all antenatal patients in order to identify any unsuspecting infection. This measure will go a long way in reducing maternal and obstetric complications associated with pregnancy.
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Affiliation(s)
- Paul Erhunmwunse Imade
- Department of Medical Microbiology, University of Benin Teaching Hospital, PMB 1111, Benin City, Nigeria
| | | | - Nosakhare Odeh Eghafona
- Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | | | - Endurance Ophori
- Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
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20
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Korppi M. Management of bacterial infections in children with asthma. Expert Rev Anti Infect Ther 2009; 7:869-77. [PMID: 19735226 DOI: 10.1586/eri.09.58] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Respiratory viruses are the single most common causes of asthma exacerbations in children. Rhinovirus-induced wheezing is a risk factor for chronic asthma, but its mechanism has remained unknown. Human bocavirus is a common finding in wheezing children, but its role as a respiratory pathogen is still unclear. Mycoplasma pneumoniae may, like viruses, induce wheezing and asthma exacerbation. Chlamydia pneumoniae and, in recent studies, Chlamydia trachomatis, may not only induce asthma exacerbations but may also be involved in the pathogenesis of chronic asthma. Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis are often involved in respiratory infections associated with wheezing, but there is no evidence for their active role in asthma pathogenesis or exacerbation. This review summarizes current knowledge on the association between respiratory infections and asthma in children, with a special focus on the role of antibiotics in incipient asthma, asthma exacerbation and chronic stable asthma.
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Affiliation(s)
- Matti Korppi
- Paediatric Research Centre, Tampere University and University Hospital, Tampere, Finland.
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Sato M, Ahmed AM, Noda A, Watanabe H, Fukumoto Y, Shimamoto T. Isolation and molecular characterization of multidrug-resistant Gram-negative bacteria from imported flamingos in Japan. Acta Vet Scand 2009; 51:46. [PMID: 19930691 PMCID: PMC2794275 DOI: 10.1186/1751-0147-51-46] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Accepted: 11/24/2009] [Indexed: 11/10/2022] Open
Abstract
Imported animals, especially those from developing countries, may constitute a potential hazard to native animals and to public health. In this study, a new flock of lesser flamingos imported from Tanzania to Hiroshima Zoological Park were screened for multidrug-resistant Gram-negative bacteria, integrons and antimicrobial resistance genes. Thirty-seven Gram-negative bacterial isolates were obtained from the flamingos. Seven isolates (18.9%) showed multidrug resistance phenotypes, the most common being against: ampicillin, streptomycin, tetracycline, trimethoprim/sulfamethoxazole and nalidixic acid. Molecular analyses identified class 1 and class 2 integrons, beta-lactamase-encoding genes, blaTEM-1 and blaCTX-M-2 and the plasmid-mediated quinolone resistance genes, qnrS and qnrB. This study highlights the role of animal importation in the dissemination of multidrug-resistant bacteria, integrons and antimicrobial resistance genes from one country to another.
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Affiliation(s)
- Maiko Sato
- Laboratory of Food Microbiology and Hygiene, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Ashraf M Ahmed
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Kafr El-Sheikh University, Kafr El-Sheikh 33516, Egypt
| | - Ayako Noda
- Hiroshima City Asa Zoological Park, Asa-cho Asakita-ku, Hiroshima 731-3355, Japan
| | - Hitoshi Watanabe
- Hiroshima City Asa Zoological Park, Asa-cho Asakita-ku, Hiroshima 731-3355, Japan
| | - Yukio Fukumoto
- Hiroshima City Asa Zoological Park, Asa-cho Asakita-ku, Hiroshima 731-3355, Japan
| | - Tadashi Shimamoto
- Laboratory of Food Microbiology and Hygiene, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
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Vlieghe E, Phoba MF, Tamfun JJM, Jacobs J. Antibiotic resistance among bacterial pathogens in Central Africa: a review of the published literature between 1955 and 2008. Int J Antimicrob Agents 2009; 34:295-303. [PMID: 19540725 DOI: 10.1016/j.ijantimicag.2009.04.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 04/29/2009] [Accepted: 04/30/2009] [Indexed: 11/27/2022]
Abstract
A systematic review of the published literature on bacterial resistance in Central Africa between 1955 and 2008 was performed. Eighty-three publications from seven countries were retrieved, the majority presenting data on enteric and other gram-negative pathogens. Despite methodological limitations in many studies, alarming resistance rates are noted in nearly all pathogens. Of special concern are multidrug resistance in Shigella and Salmonella spp. and the emergence of meticillin-resistant Staphylococcus aureus, high-level penicillin-resistant Streptococcus pneumoniae and extended-spectrum beta-lactamases among gram-negative pathogens. These findings make clear that the Central African region shares the worldwide trend of increasing antimicrobial resistance and is in urgent need of sound surveillance based on competent and affordable microbiology to provide clear data on antimicrobial resistance. These data could enable redaction of local treatment guidelines and fuel national and regional policies to contain antimicrobial resistance.
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Affiliation(s)
- E Vlieghe
- Department of Clinical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium.
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Bartzatt R, Cirillo SLG, Cirillo JD. Antibacterial Activity of Dipeptide Constructs of Acetylsalicylic Acid and Nicotinic Acid. Drug Deliv 2008; 14:105-9. [PMID: 17364875 DOI: 10.1080/10717540600740128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Two dipeptide drugs are synthesized utilizing an acetylsalicylic acid or nicotinic acid molecule for the framework. A D-alanine-D-alanine dipeptide moiety is attached to the carbonyl carbon of acetylsalicylic acid (I) and nicotinic acid (II). Dipeptide derivatives (I) and (II) showed significant reduction of Escherichia coli (E. coli) bacterial growth and colony-forming units. A mixture of (I) and (II) induced growth inhibition of 8%, 17.5%, 28%, and 42.5% at concentrations of 100, 200, 300, and 400 microg/mL, respectively. Ampicillin demonstrated much less growth inhibition of this penicillin-resistant E. coli bacteria. Derivatives (I) and (II) showed significant reduction of colony-forming units at concentrations higher than 200 microg/mL, whereas ampicillin showed no significant affect on colony-forming units. Both (I) and (II) produced no violations of the Rule of 5, indicating favorable characteristics for bioavailability. Molecular properties were determined and showed (I) to have a Log Kow of -0.22 with aqueous solubility of 683.8 mg/L, whereas (II) had a Log Kow of -1.00 and aqueous solubility of 6859 mg/L. A mixture of the parent compounds acetyl salicylic acid and nicotinic acid demonstrated some antibacterial activity.
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Affiliation(s)
- Ronald Bartzatt
- Durham Science Center, Laboratory of Pharmaceutical Studies, Department of Chemistry, University of Nebraska, Omaha, Nebraska 68182, USA.
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Abstract
Symptomatic and asymptomatic bacteriuria is common in pregnant women. A history of previous urinary tract infections and low socioeconomic status are risk factors for bacteriuria in pregnancy. Escherichia coli is the most common aetiologic agent in both symptomatic and asymptomatic infection and quantitative culture is the gold standard for diagnosis. Treatment of asymptomatic bacteriuria has been shown to reduce the rate of pyelonephritis in pregnancy and therefore screening for and treatment of asymptomatic bacteriuria has become a standard of obstetrical care. Antibiotic treatment of asymptomatic bacteriuria is associated with a decrease in the incidence of low birth weight, but the methodological quality of the studies limits the strength of the conclusions that can be drawn. Debate exists in the literature as to whether treated pyelonephritis is associated with adverse fetal outcomes. There is no clear consensus in the literature on antibiotic choice or duration of therapy for infection. With increasing antibiotic resistance, consideration of local resistance rates is necessary when choosing therapy.
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Affiliation(s)
- J Schnarr
- Department of Obstetrics and Gynecology, Faculty of Health Sciences, McMaster University, Hamilton, Canada
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Diazgranados CA, Cardo DM, McGowan JE. Antimicrobial resistance: international control strategies, with a focus on limited-resource settings. Int J Antimicrob Agents 2008; 32:1-9. [PMID: 18550343 DOI: 10.1016/j.ijantimicag.2008.03.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2008] [Accepted: 03/04/2008] [Indexed: 11/25/2022]
Abstract
Microorganisms resistant to multiple anti-infective agents have increased worldwide. These organisms threaten both optimal care of patients with infection as well as the viability of current healthcare systems. In addition, antimicrobials are valuable resources that enhance both prevention and treatment of infections. As resistance diminishes this resource, it is a societal goal to minimise resistance and therefore to reduce forces that produce resistance. This review considers strategies for minimising resistance that are needed at several different levels of responsibility, ranging from the patient care provider to international agencies. It then describes responses that might be appropriate according to the resources available for control, focusing on limited-resource settings. Antimicrobial resistance represents an international concern. Response to this problem demands concerted efforts from multiple sectors both in developed and developing countries, as well as the strengthening of multinational/international partnerships and regulations. Both medical and public health agencies should be in the forefront of these efforts.
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Affiliation(s)
- Carlos A Diazgranados
- Department of Medicine (Infectious Diseases), Emory University School of Medicine, 49 Jesse Hill Jr Drive, Atlanta, GA 30303, USA.
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Amadi E, . OE, . CU, . ON, . RO, . OU. Asymptomatic Bacteriuria among Pregnant Women in Abakaliki, Ebonyi State Nigeria. JOURNAL OF MEDICAL SCIENCES 2007. [DOI: 10.3923/jms.2007.698.700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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