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1.
Clin Lab ; 65(4)2019 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-30969087

RESUMO

BACKGROUND: The differential diagnosis of pulmonary tuberculosis and bacterial community-acquired pneumonia is often a challenging phenomenon. The neutrophil to lymphocyte count ratio, a suitable indicator of inflammation, has been demonstrated to be a useful biomarker for predicting bacteremia. The main aim this study is to evaluate the role of neutrophil to lymphocyte count ratio in the differential diagnosis of pulmonary tuberculosis and bacterial Community-Acquired Pneumonia at Ayder and Mekelle hospitals, Mekelle, Ethiopia. METHODS: A hospital based cross-sectional study was conducted from February to May 2017 on a total of 146 patients at Ayder and Mekelle hospitals. After taking written informed consent, study participants were interviewed for a detailed history and 5 mL of blood was collected for hematological analysis. Pulmonary tuberculosis was diagnosed by using Ziehl-Neelsen and Gene X-pert. Community acquired pneumonia was diagnosed using sputum culture. Student's t-test, Pearson's chi-square test, and receiver operating characteristics curve analysis were used. A p-value < 0.05 was considered statistically significant. RESULTS: The neutrophil to lymphocyte count ratio and eythrocyte sedimentation rate were significantly higher in pulmonary tuberculosis patients than bacterial community-acquired pneumonia patients. Neutrophil to lymphocyte count ratio and eythrocyte sedimentation rate with cutoff values of ≥ 2.72 and ≥ 39, respectively, showed the highest area under the curve (AUC = 0.69; 95% CI: 0.62, 0.77). CONCLUSIONS: Neutrophil to lymphocyte count ratio and eythrocyte sedimentation rate together at a time with their respective cutoff values gave a 69% accuracy in differentiating pulmonary tuberculosis from bacterial community-acquired pneumonia. Therefore, neutrophil to lymphocyte count ratio and erythrocyte sedimentation rate can be used in differentiating pulmonary tuberculosis from PTB patients from bacterial Community-acquired pneumonia, especially in resource-limited settings.


Assuntos
Infecções Comunitárias Adquiridas/diagnóstico , Contagem de Linfócitos , Neutrófilos/citologia , Pneumonia Bacteriana/diagnóstico , Tuberculose Pulmonar/diagnóstico , Adulto , Sedimentação Sanguínea , Infecções Comunitárias Adquiridas/sangue , Estudos Transversais , Diagnóstico Diferencial , Etiópia , Feminino , Hospitalização , Humanos , Linfócitos/citologia , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Pneumonia Bacteriana/sangue , Curva ROC , Tuberculose Pulmonar/sangue , Adulto Jovem
2.
BMC Immunol ; 19(1): 37, 2018 12 17.
Artigo em Inglês | MEDLINE | ID: mdl-30558580

RESUMO

BACKGROUND: The initiation of highly active antiretroviral therapy (HAART) plays a significant role in the clinical management of HIV infected people by preventing morbidity and mortality. This benefit becomes, the most terrible when treatment failure develops. Thus, this research aims to assess the prevalence and associated factors of treatment failure among HIV/AIDS patients on HAART attending University of Gondar Referral Hospital Northwest Ethiopia. RESULTS: Patients on ART with a minimum of 6 months and up to 12 years of treatment were being enrolled. The prevalence of treatment failure, immunological failure and virological failure among people living with HIV/AIDS attending University of Gondar referral hospital were 20.3, 13.2, and 14.7%, respectively. Patients who had no formal education (Adjusted odds ratio (AOR): 3.8; 95% CI, 1.05-13.77), primary level education (AOR: 4.2; 95% CI, 1.16-15.01) and duration on ART < 6 years (AOR: 2.1; 95%CI, 1.12-3.81) were a significant risk factor. However, initial adult regimen D4T +  3TC+ EFV (AOR: 0.025; 95% CI, 0.002-0.36), AZT +3TC + NVP (AOR: 0.07; 95% CI, 0.01-0.71), AZT +  3TC + EFV (AOR: 0.046; 95% CI, 0.004-0.57) andTDF+3TC + EFV (AOR: 0.04; 95% CI, 0.004-0.46) were significantly protective for treatment failure. CONCLUSIONS: Timely and early identification of associated factors and monitoring antiretroviral therapy treatment failure should be done to enhance the benefit and to prevent further complication of the patients. It is preferable to initiate ART using any one of the following ART regimens: AZT +3TC + NVP, AZT + 3TC + EFV and TDF + 3TC + EFV to prevent treatment failure. Since the prevalence of this treatment failure and its associated factor may be different from other ART centers and community in Ethiopia, further national representative institutional based cross-sectional researches are needed across all ART centers of Ethiopia in order to determine the prevalence of treatment failure and its associated factors.


Assuntos
Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Adolescente , Adulto , Idoso , Linfócitos T CD4-Positivos/efeitos dos fármacos , Estudos Transversais , Etiópia/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Encaminhamento e Consulta , Estudos Retrospectivos , Falha de Tratamento , Carga Viral/efeitos dos fármacos
3.
BMC Infect Dis ; 18(1): 109, 2018 03 06.
Artigo em Inglês | MEDLINE | ID: mdl-29510664

RESUMO

BACKGROUND: Despite availability of effective treatment and the implementation of focused antenatal care (ANC), still the prevalence of syphilis persists in Ethiopia. Yet, data is not found in southern Ethiopia. Therefore, this study was conducted to determine the seroprevalence and associated factors of syphilis among pregnant women in Yiregalem Hospital, Southern Ethiopia. METHODS: A cross-sectional study was conducted among pregnant women from October 2015 to August 2016. Data on socio-demography and obstetric conditions of pregnant women were collected using a structured questionnaire. Serum samples were screened for syphilis using rapid plasma regain (RPR) test and those found seropositive were further confirmed by Treponema pallidum haemagglutination assay (TPHA) test following the manufacturer's instruction. HIV results were reviewed from records. The data were analyzed using SPSS version 20 software. RESULTS: Of 494 pregnant women, 204(41.3%) were first ANC visit attenders. Of these, 123(60.3%) were after the 12th gestational week. Sero-prevalence of syphilis and HIV was found to be 5.1% (25/494; 95 CI, 3.2-7.1%) and 10.3% (51/494; 95 CI, 7.7-13.2%), respectively. The overall prevalence of syphilis and HIV co-infection was 2.2% (11/494). Women with HIV infection were significantly more likely to be syphilis-seropositive (AOR = 10.3, 95%CI, 4.213-25.185) than HIV negatives. CONCLUSIONS: High seroprevalence of syphilis particularly among HIV positive women and late first ANC visit attenders in the study area calls for further ramping up of current intervention measures. Like integration of syphilis testing and treatment to the already established HIV prevention program and creating awareness about early ANC visit and follow-up.


Assuntos
Complicações Infecciosas na Gravidez/epidemiologia , Sífilis/epidemiologia , Adolescente , Adulto , Coinfecção , Estudos Transversais , Etiópia/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Humanos , Gravidez , Cuidado Pré-Natal/estatística & dados numéricos , Prevalência , Estudos Soroepidemiológicos , Sorodiagnóstico da Sífilis , Treponema pallidum/patogenicidade
4.
BMC Ophthalmol ; 17(1): 151, 2017 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-28830451

RESUMO

BACKGROUND: External ocular infection is a public health problem in Ethiopia. The aim of this study was to determine the prevalence and antimicrobial susceptibility pattern of external ocular bacterial infections. METHODS: A cross sectional study was conducted at the University of Gondar Hospital among patients seeking health services at the Department of Ophthalmology from January to April, 2016. All patients with suspected external ocular infections were examined under slit lamp microscope. External ocular samples were collected using aseptic techniques. All samples were investigated by culture and bacteria were identified using standard methods. Drug susceptibility test was done using the Kirby-Bauer Disk diffusion method according to the guidelines of Clinical and Laboratory Standard Institute (CLSI). RESULT: A total of 312 samples were collected and 58.3% were culture positive. The proportion of Gram positive bacterial pathogens was (88%), and Staphylococcus aureus (50.3%) was the predominantly isolated pathogen, followed by Coagulase negative staphylococci (CoNS) (33.5%) and Klebsiella species (4.7%). Conjunctivitis was the dominant clinical feature, but a high positive result for bacterial pathogens was observed among patients with dacryocystitis cases. The Gram positive bacterial isolates were susceptible to ciprofloxacin, chloramphinicol, amoxicillin-clavulanate and ceftriaxone. However, 65% of these Gram positive bacterial pathogens showed resistance to penicillin, ampicillin and amoxicillin. The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) infection was 24% and multidrug resistance (MDR) was observed in 87% of the isolated bacteria. CONCLUSION: Conjunctivitis was the dominant ophthalmic disease followed by blepharitis. The dominant bacteria species was S. aureus and MRSA infection is increasingly prevalent. The overall MDR bacterial pathogen proportion was very high. The high prevalence of MRSA and MDR bacterial pathogens dictate the need for effective prevention as important as for therapies.


Assuntos
Antibacterianos/farmacologia , Infecções Oculares Bacterianas/microbiologia , Bactérias Gram-Negativas , Bactérias Gram-Positivas , Adolescente , Adulto , Idoso , Antibacterianos/uso terapêutico , Criança , Pré-Escolar , Estudos Transversais , Farmacorresistência Bacteriana Múltipla/efeitos dos fármacos , Etiópia/epidemiologia , Infecções Oculares Bacterianas/epidemiologia , Feminino , Bactérias Gram-Negativas/efeitos dos fármacos , Bactérias Gram-Negativas/isolamento & purificação , Bactérias Gram-Positivas/efeitos dos fármacos , Bactérias Gram-Positivas/isolamento & purificação , Humanos , Modelos Logísticos , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Adulto Jovem
5.
BMC Infect Dis ; 16(1): 689, 2016 11 21.
Artigo em Inglês | MEDLINE | ID: mdl-27871245

RESUMO

BACKGROUND: The burden of methicillin resistant Staphylococcus aureus is a major public health concern worldwide; however the overall epidemiology of multidrug resistant strains is neither coordinated nor harmonized, particularly in developing countries including Ethiopia. Therefore, the aim of this meta-analysis was to assess the burden of methicillin resistant Staphylococcos aureus and its antibiotic resistance pattern in Ethiopia at large. METHODS: PubMed, Google Scholar, and lancet databases were searched and a total of 20 studies have been selected for meta-analysis. Six authors have independently extracts data on the prevalence of methicillin resistant Staphylococcus aureus among clinical isolates of Staphylococcus aureus. Statistical analysis was achieved by using Open meta-analyst (version 3.13) and Comprehensive meta-analysis (version 3.3) softwares. The overall prevalence of methicillin resistant Staphylococcus aureus and its antibiotic resistance pattern were pooled by using the forest plot, table and figure with 95% CI. RESULTS: The pooled prevalence of methicillin resistant Staphylococcus aureus was 32.5% (95% CI, 24.1 to 40.9%). Moreover, methicillin resistant Staphylococcus aureus strains were found to be highly resistant to penicillin, ampicillin, erythromycin, and amoxicillin, with a pooled resistance ratio of 99.1, 98.1, 97.2 and 97.1%, respectively. On the other hand, comparably low levels of resistance ratio were noted to vancomycin, 5.3%. CONCLUSION: The overall burden of methicillin resistant Staphylococcus aureus is considerably high, besides these strains showed extreme resistance to penicillin, ampicillin, erythromycin and amoxicillin. In principle, appropriate use of antibiotics, applying safety precautions are the key to reduce the spread of multidrug resistant strains, methicillin resistant Staphylococcus aureus in particular.


Assuntos
Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Etiópia/epidemiologia , Humanos , Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Infecções Estafilocócicas/tratamento farmacológico
6.
Microbiologyopen ; 13(3): e1409, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38682784

RESUMO

Stenotrophomonas maltophilia is a multidrug-resistant (MDR), Gram-negative bacterium intrinsically resistant to beta-lactams, including last-resort carbapenems. As an opportunistic pathogen, it can cause serious healthcare-related infections. This study assesses the prevalence, resistance profiles, and genetic diversity of S. maltophilia isolated from residential aged care facilities (RACFs). RACFs are known for their overuse and often inappropriate use of antibiotics, creating a strong selective environment that favors the development of bacterial resistance. The study was conducted on 73 S. maltophilia isolates recovered from wastewater and facility swab samples obtained from three RACFs and a retirement village. Phenotypic and genotypic assessments of the isolates revealed high carbapenem resistance, exemplifying their intrinsic beta-lactam resistance. Alarmingly, 49.3% (36/73) of the isolates were non-wild type for colistin, with minimum inhibitory concentration values of > 4 mg/L, and 11.0% (8/73) were resistant to trimethoprim-sulfamethoxazole. No resistance mechanisms were detected for either antimicrobial. Genotypic assessment of known lineages revealed isolates clustering with Sm17 and Sm18, lineages not previously reported in Australia, suggesting the potential ongoing spread of MDR S. maltophilia. Lastly, although only a few isolates were biocide tolerant (2.7%, 2/73), their ability to grow in high concentrations (64 mg/L) of triclosan is concerning, as it may be selecting for their survival and continued dissemination.


Assuntos
Antibacterianos , Farmacorresistência Bacteriana Múltipla , Infecções por Bactérias Gram-Negativas , Testes de Sensibilidade Microbiana , Stenotrophomonas maltophilia , Stenotrophomonas maltophilia/efeitos dos fármacos , Stenotrophomonas maltophilia/genética , Stenotrophomonas maltophilia/isolamento & purificação , Stenotrophomonas maltophilia/classificação , Farmacorresistência Bacteriana Múltipla/genética , Humanos , Antibacterianos/farmacologia , Infecções por Bactérias Gram-Negativas/microbiologia , Infecções por Bactérias Gram-Negativas/epidemiologia , Genótipo , Austrália , Águas Residuárias/microbiologia , Prevalência , Variação Genética , Colistina/farmacologia , Carbapenêmicos/farmacologia , Idoso , Instituições Residenciais
7.
Microorganisms ; 12(4)2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38674695

RESUMO

Antimicrobial-resistant Klebsiella pneumoniae is one of the predominant pathogens in healthcare settings. However, the prevalence and resistome of this organism within residential aged care facilities (RACFs), which are potential hotspots for antimicrobial resistance, remain unexplored. Here, we provide a phenotypic and molecular characterization of antimicrobial-resistant K. pneumoniae isolated from RACFs. K. pneumoniae was isolated from urine, faecal and wastewater samples and facility swabs. The antimicrobial susceptibility profiles of all the isolates were determined and the genomic basis for resistance was explored with whole-genome sequencing on a subset of isolates. A total of 147 K. pneumoniae were isolated, displaying resistance against multiple antimicrobials. Genotypic analysis revealed the presence of beta-lactamases and the ciprofloxacin-resistance determinant QnrB4 but failed to confirm the basis for the observed cephalosporin resistance. Clonal spread of the multidrug-resistant, widely disseminated sequence types 323 and 661 was observed. This study was the first to examine the resistome of K. pneumoniae isolates from RACFs and demonstrated a complexity between genotypic and phenotypic antimicrobial resistance. The intra-facility dissemination and persistence of multidrug-resistant clones is concerning, given that residents are particularly vulnerable to antimicrobial resistant infections, and it highlights the need for continued surveillance and interventions to reduce the risk of outbreaks.

8.
Microbiol Spectr ; 11(6): e0073123, 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-37787536

RESUMO

IMPORTANCE: Antimicrobial resistance (AMR) is a global threat that imposes a heavy burden on our health and economy. Residential aged care facilities (RACFs), where frequent inappropriate antibiotic use creates a selective environment that promotes the development of bacterial resistance, significantly contribute to this problem. We used wastewater-based epidemiology to provide a holistic whole-facility assessment and comparison of antimicrobial resistance in two RACFs and a retirement village. Resistant Escherichia coli, a common and oftentimes problematic pathogen within RACFs, was isolated from the wastewater, and the phenotypic and genotypic AMR was determined for all isolates. We observed a high prevalence of an international high-risk clone, carrying an extended-spectrum beta-lactamase in one facility. Analysis of the entire resistome also revealed a greater number of mobile resistance genes in this facility. Finally, both facilities displayed high fluoroquinolone resistance rates-a worrying trend seen globally despite measures in place aimed at limiting their use.


Assuntos
Infecções por Escherichia coli , Escherichia coli , Humanos , Idoso , Antibacterianos/farmacologia , Infecções por Escherichia coli/epidemiologia , Infecções por Escherichia coli/microbiologia , Águas Residuárias , Farmacorresistência Bacteriana , Farmacorresistência Bacteriana Múltipla/genética , beta-Lactamases/genética , Testes de Sensibilidade Microbiana
9.
Infect Drug Resist ; 14: 3599-3608, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34511951

RESUMO

BACKGROUND: Hepatitis B virus (HBV) and hepatitis C virus (HCV) are hepatotropic viruses whose primary replication occurs in the liver. Despite the significant clinical importance of early screening of hepatitis B and C virus infection in decreasing the hepatotoxicity effect of anti-tuberculosis drugs, screening of hepatitis B and C virus among tuberculosis (TB) patients before treatment has not been practiced in Ethiopia. Thus, this study was conducted to determine the seroprevalence and associated factors of HBV and HCV infections among pulmonary TB (PTB) patients attending health facilities in Gondar, Northwest Ethiopia. METHODS: A cross-sectional study was conducted among 145 bacteriologically confirmed PTB patients from January 1 to May 30, 2019. After obtaining a signed informed consent from each participant, data on socio-demographic, clinical, and associated factors were collected using a structured pre-tested questionnaire. Besides, a blood sample was collected to determine HBsAg and HCV antibodies by enzyme linked immune sorbent assay (ELISA). The data were entered and analyzed using SPSS version 21. A Fisher's exact test was used to see the relationship between dependent and independent variables, and a p-value ≤0.05 was considered as statistically significant. RESULTS: Out of the 145 PTB patients screened, 5 (3.4%) patients tested positive for HBsAg, yet none of them were found to be positive for anti-HCV. Besides, the proportion of HIV-positive was 12 (8.3%). History of hospital admission (P= 0.005), tattooing (P= 0.009) and dental extraction (P=0.003) were significantly associated with HBsAg. CONCLUSION: Although anti-HCV antibodies were not detected, the prevalence of HBV was relatively high in tuberculosis patients. This study highlights the need for the introduction of routine screening of viral hepatitis markers for all TB patients before anti-TB treatment for better management of patients. Likewise, further clinical and epidemiological studies are needed.

10.
Microb Genom ; 7(12)2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34919514

RESUMO

Carbapenems are potent broad-spectrum ß-lactam antibiotics reserved for the treatment of serious infections caused by multidrug-resistant bacteria such as Pseudomonas aeruginosa. The surge in P. aeruginosa resistant to carbapenems is an urgent threat, as very few treatment options remain. Resistance to carbapenems is predominantly due to the presence of carbapenemase enzymes. The assessment of 147 P. aeruginosa isolates revealed that 32 isolates were carbapenem non-wild-type. These isolates were screened for carbapenem resistance genes using PCR. One isolate from wastewater contained the Adelaide imipenemase gene (blaAIM-1) and was compared phenotypically with a highly carbapenem-resistant clinical isolate containing the blaAIM-1 gene. A further investigation of wastewater samples from various local healthcare and non-healthcare sources as well as river water, using probe-based qPCR, revealed the presence of the blaAIM-1 gene in all the samples analysed. The widespread occurrence of blaAIM-1 throughout Adelaide hinted at the possibility of more generally extensive spread of this gene than originally thought. A blast search revealed the presence of the blaAIM-1 gene in Asia, North America and Europe. To elucidate the identity of the organism(s) carrying the blaAIM-1 gene, shotgun metagenomic sequencing was conducted on three wastewater samples from different locations. Comparison of these nucleotide sequences with a whole-genome sequence of a P. aeruginosa isolate revealed that, unlike the genetic environment and arrangement in P. aeruginosa, the blaAIM-1 gene was not carried as part of any mobile genetic elements. A phylogenetic tree constructed with the deduced amino acid sequences of AIM-1 suggested that the potential origin of the blaAIM-1 gene in P. aeruginosa might be the non-pathogenic environmental organism, Pseudoxanthomonas mexicana.


Assuntos
Proteínas de Bactérias/genética , Carbapenêmicos/farmacologia , Farmacorresistência Bacteriana , Pseudomonas aeruginosa/classificação , Sequenciamento Completo do Genoma/métodos , beta-Lactamases/genética , Sequência de Aminoácidos , Animais , Ásia , Europa (Continente) , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Testes de Sensibilidade Microbiana , América do Norte , Filogenia , Filogeografia , Pseudomonas aeruginosa/efeitos dos fármacos , Pseudomonas aeruginosa/genética , Águas Residuárias/microbiologia
11.
BMC Infect Dis ; 10: 111, 2010 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-20459703

RESUMO

BACKGROUND: Transfusion-transmissible infectious agents such as human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and syphilis are among the greatest threats to blood safety for the recipient. This study aimed to determine the seroprevalence, risk factors and trends of HIV, HBV, HCV and syphilis infections among blood donors over a period of five years at Gondar University Teaching Hospital, Northwest Ethiopia. METHODS: A retrospective analysis of consecutive blood donors' records covering the period between January 2003 and December 2007 was conducted. Logistic regression analysis was used to determine risk factors associated with HIV, HBV, HCV and syphilis infections. RESULTS: From the total of 6361 consecutive blood donors, 607 (9.5%) had serological evidence of infection with at least one pathogen and 50 (0.8%) had multiple infections. The overall seroprevalence of HIV, HBV, HCV and syphilis was 3.8%, 4.7%, 0.7%, and 1.3% respectively. Among those with multiple infections, the most common combinations were HIV-syphilis 19 (38%) and HIV-HBV 17 (34%). The seropositivity of HIV was significantly increased among female blood donors, first time donors, housewives, merchants, soldiers, drivers and construction workers. Significantly increased HBV seropositivity was observed among farmers, first time donors and age groups of 26 - 35 and 36 - 45 years. Similarly, the seroprevalence of syphilis was significantly increased among daily labourers and construction workers. Statistically significant association was observed between syphilis and HIV infections, and HCV and HIV infections. Moreover, significantly declining trends of HIV, HCV and syphilis seropositivity were observed over the study period. CONCLUSIONS: A substantial percentage of the blood donors harbour HIV, HBV, HCV and syphilis infections. Strict selection of blood donors and comprehensive screening of donors' blood using standard methods are highly recommended to ensure the safety of blood for recipient.


Assuntos
Doadores de Sangue , Infecções por HIV/epidemiologia , Hepatite B/epidemiologia , Hepatite C/epidemiologia , Sífilis/epidemiologia , Adolescente , Adulto , Idoso , Etiópia/epidemiologia , Feminino , Hospitais de Ensino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Estudos Soroepidemiológicos , Adulto Jovem
12.
J Pathog ; 2020: 3168325, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32566311

RESUMO

BACKGROUND: The spectrums of infections due to methicillin-resistant Staphylococcus aureus are manifold and are associated with worse outcomes. A study on the prevalence of these pathogens and their sensitivity patterns will give updated information which is very helpful for health personnel responsible in the management of patients and timely monitoring of the emergence of resistant bacteria. Hence, the study aimed at assessing the prevalence of methicillin-resistant Staphylococcus aureus and associated factors among patients with wound infection at Dessie Referral Hospital. METHOD: A cross-sectional study was conducted among 266 patients at Dessie Referral Hospital from February to May 2016. Wound swab samples were collected aseptically using Levine's technique and transported to Dessie Regional Laboratory by using brain-heart infusion transport media. Isolation of Staphylococcus aureus was done based on cultural and biochemical profiles. Drug susceptibility test was performed using the disc diffusion technique as per the standard and interpreted based on the Clinical and Laboratory Standards Institute guidelines. The data were entered and analyzed by using SPSS version 20. RESULT: Staphylococcus isolates from 266 processed wound swabs were 92 (34.58%). Of these, 26 (28.3%) were identified as methicillin-resistant S. aureus and 66 (71.7%) were methicillin-sensitive S. aureus. The overall prevalence of methicillin-resistant S. aureus among the study population was 9.8%. The isolated methicillin-resistant S. aureus showed full resistance to penicillin (100%) followed by erythromycin and ciprofloxacin (16, 61.5%) and cotrimoxazole and gentamicin (14, 53.8%). From the total S. aureus isolates, 20 (21.7%) of them showed multidrug resistance. Of these methicillin-resistant S. aureus, 18 (69.8%) showed high multidrug resistance. Patients who are farmers in occupation (AOR = 6.1, 95% CI (1.086-33.724)), admitted in the hospital (AOR = 3.56, 95% CI (1.429-8.857)), and have low BMI (<18.5) (AOR = 13.89, 95% CI (4.919-39.192)) were among the risk factors significantly associated with wound infection due to methicillin-resistant S. aureus. CONCLUSION: All methicillin-resistant S. aureus isolates were 100% resistant to penicillin and showed high multidrug resistance. Therefore, antibiotic susceptibility test should be performed prior to treatment.

13.
Microorganisms ; 8(11)2020 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-33114277

RESUMO

Pseudomonas aeruginosa is an opportunistic pathogen displaying high intrinsic antimicrobial resistance and the ability to thrive in different ecological environments. In this study, the ability of P. aeruginosa to develop simultaneous resistance to multiple antibiotics and disinfectants in different natural niches were investigated using strains collected from clinical samples, veterinary samples, and wastewater. The correlation between biocide and antimicrobial resistance was determined by employing principal component analysis. Molecular mechanisms linking biocide and antimicrobial resistance were interrogated by determining gene expression using RT-qPCR and identifying a potential genetic determinant for co- and cross-resistance using whole-genome sequencing. A subpopulation of P. aeruginosa isolates belonging to three sequence types was resistant against the common preservative benzalkonium chloride and showed cross-resistance to fluoroquinolones, cephalosporins, aminoglycosides, and multidrug resistance. Of these, the epidemiological high-risk ST235 clone was the most abundant. The overexpression of the MexAB-OprM drug efflux pump resulting from amino acid mutations in regulators MexR, NalC, or NalD was the major contributing factor for cross-resistance that could be reversed by an efflux pump inhibitor. This is the first comparison of antibiotic-biocide cross-resistance in samples isolated from different ecological niches and serves as a confirmation of laboratory-based studies on biocide adapted isolates. The isolates from wastewater had a higher incidence of multidrug resistance and biocide-antibiotic cross-resistance than those from clinical and veterinary settings.

14.
BMC Res Notes ; 12(1): 412, 2019 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-31307538

RESUMO

OBJECTIVE: The aim of this study was to assess the magnitude of HBV and HCV infection and its associated factors among surgical patients at Hawassa University comprehensive specialized Hospital Hawassa City, southern Ethiopia. RESULT: In this study, the prevalence of HBsAg and Anti-HCV among patients scheduled for surgery were 9% and 5.5%, respectively. Patients who practiced multiple sexual partner (AOR = 2.58, CI 1.18-5.61), dental procedure (AOR = 4.20, CI 1.87-9.55) and blood transfusion (AOR = 3.84, CI 1.27-11.65) had higher odds of HBV infection and those who had history of surgical procedure (AOR = 6.05: 95% CI 1.59-23.04) and dental procedure (AOR = 3.70: 95% CI 1.40-9.77) had higher odds of HCV infection.


Assuntos
Antígenos de Superfície da Hepatite B/sangue , Hepatite B/epidemiologia , Anticorpos Anti-Hepatite C/sangue , Hepatite C/epidemiologia , Hospitais Especializados , Hospitais Universitários , Adulto , Estudos Transversais , Etiópia/epidemiologia , Feminino , Humanos , Masculino , Prevalência , Fatores de Risco , Procedimentos Cirúrgicos Operatórios/métodos , Inquéritos e Questionários
15.
Ethiop J Health Sci ; 28(2): 187-196, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29983516

RESUMO

BACKGROUND: Failure to timely diagnose and treat urinary tract infections is associated with grave long term consequences. The objectives of this study included assessing the proportion and predictors of Urinary Tract Infection (UTI) as a cause of pediatric outpatient department (OPD) visits and determining common uropathogens with antimicrobial susceptibility pattern. METHODS: A cross sectional study was conducted from May to September 2015 among children of less than 15 years old at a tertiary center in Hawassa, Ethiopia. Children who fulfilled predefined eligibility criteria were recruited to undergo urine culture and urine analysis. RESULTS: A total of 863 children visited the OPD during the study period among which 269(31.2%) fulfilled the predefined eligibility criteria. Urine culture was positive for 74/269(27.5%) of the clinically suspected children. Male uncircumcision (adjusted odds ratio (aOR) 3.70; 95% CI 1.34-10.16) and under nutrition (aOR 5.41; 95%CI 2.64-11.07) were independent predictors of culture positivity. More than 5 WBC per high power field (aOR 4.7, 95% CI 1.8-12.7) on microscopy, urine PH > 5.0 (aOR 2.6, 95%CI 1.2-5.8), and positive leukocyte esterase (aOR 9.9, 95%CI 4.1-25.7) independently predicted positive growth on urine culture. Escherichia coli (34/74, 45.9%) and Klebsiella spp (18/74, 24.3%) were the most frequent isolates. High resistance was noted against amoxicillin (70.6%) and cotrimoxazole (97.1%) by E. coli. CONCLUSION: UTI accounted for a tenth of total OPD visits. Commonly used first line antibiotics showed high level resistance to common etiologies of UTI. UTI should be suspected in febrile children, and antibiograms should be done to tailor prescription of antibiotics.


Assuntos
Instituições de Assistência Ambulatorial , Antibacterianos/farmacologia , Bactérias/efeitos dos fármacos , Resistência Microbiana a Medicamentos , Febre/diagnóstico , Pediatria , Infecções Urinárias/epidemiologia , Adolescente , Amoxicilina/farmacologia , Bactérias/crescimento & desenvolvimento , Criança , Pré-Escolar , Estudos Transversais , Escherichia coli/efeitos dos fármacos , Escherichia coli/crescimento & desenvolvimento , Infecções por Escherichia coli/tratamento farmacológico , Infecções por Escherichia coli/epidemiologia , Infecções por Escherichia coli/microbiologia , Etiópia , Feminino , Febre/tratamento farmacológico , Febre/etiologia , Humanos , Incidência , Lactente , Klebsiella/efeitos dos fármacos , Klebsiella/crescimento & desenvolvimento , Masculino , Testes de Sensibilidade Microbiana , Combinação Trimetoprima e Sulfametoxazol/farmacologia , Infecções Urinárias/diagnóstico , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/microbiologia
16.
BMC Res Notes ; 11(1): 605, 2018 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-30134970

RESUMO

OBJECTIVE: Although typhoid fever is a major public health problem in Ethiopia, data is not available in the study area. Therefore, this study aimed to determine the prevalence, clinical presentation at the time of diagnosis and associated factors of typhoid fever among febrile patients visiting Shashemene Referral Hospital, southern Ethiopia. A cross-sectional study was conducted from January 1, 2016, to October 30, 2016. Socio-demographic and clinical data were collected using a structured questionnaire. A blood sample was collected and inoculated into Tryptic soy broth. RESULTS: A total of 421 adult febrile patients suspected of typhoid fever were included in the study. Of these, the overall prevalence of culture-confirmed typhoid fever was 5.0% (21/421). The prevalence of typhoid fever was significantly associated with rural residence (8.4%). As compared to the urban resident, the rural resident was 3.6 times more likely found to have culture-confirmed typhoid fever. The prevalence of typhoid fever was significantly associated with those patients whose water source was spring 7 (12.3%) and river 7 (13.2%). All of those study participants who used treated water were culture negative. Fever for ≥ 5 days, abdominal pain, and skin rash independently predicted blood culture-confirmed typhoid fever.


Assuntos
Febre Tifoide/diagnóstico , Adolescente , Adulto , Estudos Transversais , Etiópia/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Encaminhamento e Consulta , Salmonella typhi , Febre Tifoide/complicações , Febre Tifoide/epidemiologia , Adulto Jovem
17.
J Pregnancy ; 2018: 8435910, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30174956

RESUMO

BACKGROUND: Hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) positive mother has up to 90% likelihood of mother-to-child transmission (MTCT) of hepatitis B virus (HBV) to newborns in the absence of any prophylaxis or antiviral therapy utilization. However, routine antenatal screening and intervention strategies are not yet practiced in Ethiopia. Therefore, this study was conducted to determine the prevalence, infectivity, and associated risk factors of HBV among pregnant women. METHODS: A cross-sectional study was conducted from October 2015 to August 2016 in Yirgalem Hospital. A total of 475 pregnant women were recruited, and data on sociodemography and potential risk factors were collected using a structured questionnaire. In addition, blood samples were tested for HBsAg, and HBsAg positive samples were retested for HBeAg using commercially available strip test. The status of HIV was collected from the records. RESULTS: The seroprevalence of HBsAg was 34 (7.2%), of whom 13 (38.8%) were positive for HBeAg. The prevalence of HIV infection was 10.1% (48/475). Ten out of 34 HBV positive cases (29.4%) were coinfected with HIV. The overall HBV/HIV coinfection rate was 2.1% (10/475). Women with history of multiple sexual partners and being HIV positive were significantly associated with HBsAg positivity. Among the study participants, 35.4% were aware of MTCT of HBV and only 12 (2.5%) have taken HBV vaccine. CONCLUSIONS: High prevalence of HBsAg and HBeAg as well as low awareness and practices of HBV prevention methods suggests that perinatal transmission of HBV might be the prevailing mode of HBV transmission in the study area. Thus, screening of all pregnant women, particularly those who had history of multiple sexual partners and HIV coinfection, and provision of health education about HBV prevention methods are inevitable.


Assuntos
Antígenos de Superfície da Hepatite B/sangue , Antígenos E da Hepatite B/sangue , Hepatite B/transmissão , Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez/epidemiologia , Adulto , Coinfecção/epidemiologia , Estudos Transversais , Etiópia/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Hepatite B/epidemiologia , Vírus da Hepatite B/isolamento & purificação , Humanos , Programas de Rastreamento , Gravidez , Estudos Prospectivos , Fatores de Risco , Adulto Jovem
18.
Infect Drug Resist ; 11: 2169-2178, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30519054

RESUMO

INTRODUCTION: Cancer is alarmingly increased in developing countries like Ethiopia, where multidrug resistant bacterial infection is rampant. The aim of this study was to determine the bacterial profile, antimicrobial resistance pattern, and associated factors among cancer patients attending University of Gondar Hospital. METHODS: A consecutive 216 cancer patients were recruited from February to April, 2017. Socio-demographic and clinical data were collected using a structured questionnaire. Culture and antibiotic resistance were done following standard microbiological procedures. RESULT: The overall prevalence of bacterial infection was 19.4%. The predominant bacterial isolates were Staphylococcus aureus (28.6%), followed by coagulase negative staphylococci (26.2%) and Escherichia coli (21.4%). Multidrug resistance was detected in 46.5% bacterial isolates. Methicillin resistance was detected in 25% of S. aureus and in 45.5% of coagulase negative staphylococci. Fluoroquinolone resistance was detected in 33.3% of E. coli isolates. Cancer patients with solid tumor, started cancer therapy, and being symptomatic had higher odds of culture positivity. CONCLUSION: The overall burden of bacterial infection among cancer patients is considerably high. The findings of this study inform baseline information for policymakers and call for additional studies with large isolates in different cancer treatment centers in the region and in the country to better understand the bacterial isolate and resistance pattern.

19.
Turk J Urol ; 43(1): 85-92, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28270957

RESUMO

OBJECTIVE: Diabetes mellitus (DM) and antibiotic resistance is an emerging public health problem in Ethiopia. Urinary tract infections (UTIs) are common and occasionally life-threatening condition among diabetic patients. Despite, all these problems, antibiotics are prescribed empirically which may adversely affect antibiotic resistance so far. Therefore the aim of this study was to identify the etiologic agents of UTI and their antibiotic resistance pattern among diabetic patients attending diabetic clinic of Hawassa University Referral Hospital. MATERIAL AND METHODS: A cross-sectional study was conducted in a total of 240 diabetic patients from June to October, 2014. After obtaining an informed written consent, socio-demographic and clinical data were collected using pre-structured questionnaire. Clean catch mid-stream urine samples were collected and processed for identification of uropathogen through culture using standard microbiologic procedure. Antibiotic susceptibility test was carried out using Kirby-Bauer disc diffusion method. RESULTS: The overall prevalence of diabetic UTI was 13.8%. Out of the total number of patients, 11.2% and 23.1% had asymptomatic and symptomatic bacteriuria respectively. DM patients with no previous history of UTI [AOR=3.55; 95% CI=1.186-10.611] and illiterate [AOR=2.5; 95% CI=1.052-5.989] had higher odds of UTI compared with their counterparts. E. coli was the commonest isolated uropathogen followed by coagulase-negative Staphylococci. All the isolated bacteria were resistant to ampicillin but sensitive to nitrofurantoin. Gram-negative isolates demonstrated high level of resistance to trimethoprim-sulphamethoxazole in 9 (81.8%), gentamicin in 8 (72.7%) and ceftriaxone in 7 (63.6%) patients. Gram-positive bacteria showed resistance to penicillin in 14 (87.5%), norfloxacin in 10 (62.5%) and ciprofloxacin in 8 (50.0%) patients. Multidrug resistance was observed in 93.9% of the isolated uropathogens. CONCLUSION: Illiterate DM patients with no previous history of UTI were significantly associated with UTI. Nitrofurantoin can be used as a drug of choice for empiric treatment of UTI in the study area. Multidrug resistance to commonly used antibiotics is an alarming phenomenon. Therefore, performing of urine cultures and periodic surveillance of UTI among DM patients is necessary.

20.
Pan Afr Med J ; 28: 75, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29255545

RESUMO

INTRODUCTION: Initiation of antiretroviral therapy (ART) and co-trimoxazole preventive therapy (CPT) is recommended for tuberculosis (TB)/human immunodeficiency virus (HIV) co-infected patients to prevent opportunistic infection. The aim of this study was to assess the prevalence of HIV among TB patients and initiation of ART and provision of CPT for TB/HIV co-infected patients in Hawassa university referral hospital. METHODS: A five year document review was done on 1961 TB patients who are registered at TB clinic of Hawassa university referral hospital from September 2009 to august 2014. Data were collected using checklist. Data analysis was done by using SPSS version 20 software. Bivariate and multivariate logistic regression analysis was used to determine the predictors of TB/HIV co-infection. RESULTS: Among 1961 TB patients diagnosed in the hospital, 95% (1765) were screened for HIV. Of these, 13.9% (246) were HIV positive. Out of 246 TB/HIV co-infected patients 31.7% (78/246) and 37.4% (92/246) were enrolled to start ART and CPT respectively. Roughly the trends of TB/HIV co-infection decreased with increased linkage to CPT, while linkage to ART was not regular across the year. The rate of TB/HIV co-infection was significantly associated with type of TB. CONCLUSION: Although, trend of HIV among TB patients has decreased across the year, only a minority of co-infected patients was linked to start ART and CPT. Therefore, screening of all TB patients for HIV and linkage of co-infected patients to HIV care to start ART and CPT should be strengthened in-line with the national guidelines.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Infecções por HIV/diagnóstico , Programas de Rastreamento/métodos , Tuberculose/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Coinfecção/tratamento farmacológico , Coinfecção/epidemiologia , Etiópia/epidemiologia , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Hospitais Universitários , Humanos , Lactente , Recém-Nascido , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Combinação Trimetoprima e Sulfametoxazol/administração & dosagem , Tuberculose/tratamento farmacológico , Adulto Jovem
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