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1.
New Microbes New Infect ; 59: 101235, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38590765

RESUMO

Background: The genetic diversity of Mycobacterium tuberculosis complex (MTBC) strains was characterized among isolates from individuals with pulmonary tuberculosis (PTB) symptoms attended holy water sites (HWSs) in the Amhara region, Ethiopia. Methods: A cross-sectional study was done from June 2019 to March 2020 to describe the genetic diversity and drug-resistance profiles of MTBC isolates. Sputum specimens were collected and cultured in the Löwenstein-Jensen culture medium. Line Probe Assay, MTBDRplus VER 2.0, and MTBDRsl VER 2.0 were used to detect first-and second-line anti-TB drug-resistance patterns. A spoligotyping technique was utilized to characterize the genetic diversity. Statistical analysis was performed using STATA 15. Results: Of 560 PTB-symptomatic participants, 122 (21.8%) were culture-positive cases. Spoligotyping of 116 isolates revealed diverse MTBC sublineages, with four major lineages: Euro-American (EA) (Lineage 4), East-African-Indian (EAI) (Lineage 3), Ethiopian (ETH) (Lineage 7), East Asian (EA) (Lineage 2). The majority (96.6%) of the isolates were EA (lineage 4) and EAI, with proportions of 54.3% and 42.2%, respectively. A total of 31 spoligotype patterns were identified, 26 of which were documented in the SITVIT2 database. Of these, there were 15 unique spoligotypes, while eleven were grouped with 2-17 isolates. SIT149/T3-ETH (n = 17), SIT26/CAS1-DELHI (n = 16), SIT25/CAS1-DELHI (n = 12), and SIT52/T2 (n = 11) spoligotypes were predominant. A rare spoligotype pattern: SIT41/Turkey and SIT1/Beijing, has also been identified in North Shewa. The overall clustering rate of sub-lineages with known SIT was 76.4%.Of the 122 culture-positive isolates tested, 16.4% were resistant to rifampicin (RIF) and/or isoniazid (INH). Multidrug-resistant TB (MDR-TB) was detected in 12.3% of isolates, five of which were fluoroquinolones (FLQs) resistant. SIT149/T3-ETH and SIT21/CAS1-KILI sublineages showed a higher proportion of drug resistance. Conclusions: Diverse MTBC spoligotypes were identified, with the T and CAS families and EA (lineage 4) predominating. A high prevalence of drug-resistant TB, with SIT149/T3-ETH and CAS1-KILI sublineages comprising a greater share, was observed. A study with large sample size and a sequencing method with stronger discriminatory power is warranted to understand better the genetic diversity of circulating MTBC in this cohort of study, which would help to adopt targeted interventions.

2.
Int J Microbiol ; 2024: 3132498, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38623557

RESUMO

Ethiopia is a high-tuberculosis (TB) burden country with 157 new cases per 100,000 people, with 23,800 TB-related deaths in 2020. In Ethiopia, TB patients have different healthcare-seeking behaviors. They frequently visit spiritual places, such as holy water sites (HWSs), to seek treatment for their illness spiritually. This study examined the prevalence of pulmonary TB (PTB) and drug susceptibility profiles of Mycobacterium tuberculosis (MTB) isolates among spiritual HWS attendees in Northwest Ethiopia. A cross-sectional study was conducted from June 2019 to March 2020. Sputum samples were collected, processed, and cultured using Löwenstein-Jensen (LJ) culture medium. Second-generation line probe assays (LPAs), GenoType®MTBDRplus VER2.0 and GenoType®MTBDRsl VER2.0, were used to detect anti-TB drug-resistant isolates. STATA 17 was utilized to perform descriptive statistics, bivariate, and multivariate regression analyses. Of 560 PTB-symptomatic participants, 21.8% ((95% confidence interval (95 CI): 18.4-25.2%)) were culture-positive, resulting in a point prevalence of 1,183/100,000 attendees. Amongst HWS attendees, culture-positive TB occurred most commonly in persons 18-33 years of age (28.5% (95 CI 23.4-34.3%)). Other participant characteristics significantly associated with culture-positive PTB were as follows: rural residents (adjusted odds ratio (aOR) 2.65; 95 CI 1.38-5.10), married participants (aOR 2.43; 95 CI 1.28-4.63), family members >5 per household (aOR 1.84; 95 CI 1.04-3.24), and sharing living space (aOR 10.57; 95 CI 3.60-31.13). Also, among 438 participants followed for 12 months after showing negative TB culture results while at the HWS, 6.8% (95 CI 4.4-9.4%) developed or contracted culture-positive TB post-residency at the HWSs. Of the 122 tested isolates, 20 (16.4%) were isoniazid (INH) and/or rifampicin (RIF) resistant. Multidrug-resistant (MDR) TB was detected in 15 cases (12.3%), five of which were fluoroquinolones (FLQs) resistant. The findings from this study should raise a concern about HWSs as potential high-risk settings for TB transmission. It is recommended that appropriate control measures be instituted that include compulsory TB testing and tightened infection control at HWSs, where an increased risk exists for transmission of TB.

3.
Front Public Health ; 12: 1356826, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38566794

RESUMO

Purpose: This study examined the patterns and frequency of genetic changes responsible for resistance to first-line (rifampicin and isoniazid), fluoroquinolones, and second-line injectable drugs in drug-resistant Mycobacterium tuberculosis (MTB) isolated from culture-positive pulmonary tuberculosis (PTB) symptomatic attendees of spiritual holy water sites (HWSs) in the Amhara region. Patients and methods: From June 2019 to March 2020, a cross-sectional study was carried out. A total of 122 culture-positive MTB isolates from PTB-suspected attendees of HWSs in the Amhara region were evaluated for their drug resistance profiles, and characterized gene mutations conferring resistance to rifampicin (RIF), isoniazid (INH), fluoroquinolones (FLQs), and second-line injectable drugs (SLIDs) using GenoType®MTBDRplus VER2.0 and GenoType®MTBDRsl VER2.0. Drug-resistant MTB isolates were Spoligotyped following the manufacturer's protocol. Results: Genetic changes (mutations) responsible for resistance to RIF, INH, and FLQs were identified in 15/122 (12.3%), 20/122 (16.4%), and 5/20 (25%) of MTB isolates, respectively. In RIF-resistant, rpoB/Ser531Lue (n = 12, 80%) was most frequent followed by His526Tyr (6.7%). Amongst INH-resistant isolates, katG/Ser315Thr1 (n = 19, 95%) was the most frequent. Of 15 MDR-TB, the majority (n = 12, 80%) isolates had mutations at both rpoB/Ser531Leu and katG/Ser315Thr1. All 20 INH and/or RIF-resistant isolates were tested with the MTBDRsl VER 2.0, yielding 5 FLQs-resistant isolates with gene mutations at rpoB/Ser531Lue, katG/Ser315Thr1, and gyrA/Asp94Ala genes. Of 20 Spoligotyped drug-resistant MTB isolates, the majority (n = 11, 55%) and 6 (30%) were SIT149/T3-ETH and SIT21/CAS1-Kili sublineages, respectively; and they were any INH-resistant (mono-hetero/multi-). Of 15 RIF-resistant (RR/MDR-TB) isolates, 7 were SIT149/T3-ETH, while 6 were SIT21/CAS1-Kili sublineages. FLQ resistance was detected in four SIT21/CAS1-Kili lineages. Conclusion: In the current study, the most common gene mutations responsible for resistance to INH, RIF, and FLQs were identified. SIT149/T3-ETH and SIT21/CAS1-Kili constitute the majority of drug-resistant TB (DR-TB) isolates. To further understand the complete spectrum of genetic changes/mutations and related genotypes, a sequencing technology is warranted.


Assuntos
Mycobacterium tuberculosis , Tuberculose Resistente a Múltiplos Medicamentos , Tuberculose Pulmonar , Tuberculose , Humanos , Mycobacterium tuberculosis/genética , Antituberculosos/farmacologia , Antituberculosos/uso terapêutico , Isoniazida/farmacologia , Rifampina/farmacologia , Etiópia , Estudos Transversais , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Tuberculose Pulmonar/microbiologia , Mutação , Genótipo , Fluoroquinolonas
4.
Heliyon ; 9(12): e22898, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38125463

RESUMO

Introduction: The population structure of Mycobacterium tuberculosis complex (MTBC) in Ethiopia is diverse but dominated by Euro-American (Lineage 4) and East-African-Indian (Lineage 3) lineages. The objective of this study was to describe the genetic diversity of MTBC isolates in Central, Eastern and Southeastern Ethiopia. Methods: A total of 223 MTBC culture isolates obtained from patients referred to Adama and Harar TB reference laboratories were spoligotyped. Demographic and clinical characteristics were collected. Results: Six major lineages: Euro-American (Lineage 4), East-African-Indian (Lineage 3), East Asian (Lineage 2), Indo-Oceanic (Lineage 1), Mycobacterium africanum (Lineage 5 and Lineage 6) and Ethiopian (Lineage 7) were identified. The majority (94.6 %) of the isolates were Euro-American and East-African-Indian, with proportions of 75.3 % and 19.3 %, respectively. Overall, 77 different spoligotype patterns were identified of which 42 were registered in the SITVIT2 database. Of these, 27 spoligotypes were unique, while 15 were clustered with 2-49 isolates. SIT149/T3_ETH (n = 49), SIT53/T1 (n = 33), SIT21/CAS1_Kili (n = 24) and SIT41/Turkey (n = 11) were the dominant spoligotypes. A rare Beijing spoligotype pattern, SIT541, has also been identified in Eastern Ethiopia. The overall clustering rate of sub-lineages with known SIT was 71.3 %. Age group (25-34) was significantly associated with clustering. Conclusion: We found a heterogeneous population structure of MTBC dominated by T and CAS families, and the Euro-American lineage. The identification of the Beijing strain, particularly the rare SIT541 spoligotype in Eastern Ethiopia, warrants a heightened surveillance plan, as little is known about this genotype. A large-scale investigation utilizing a tool with superior discriminatory power, such as whole genome sequencing, is necessary to gain a thorough understanding of the genetic diversity of MTBC in the nation, which would help direct the overall control efforts.

5.
Trop Med Infect Dis ; 7(10)2022 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-36288041

RESUMO

Background: Tuberculosis (TB) remains a significant global public health issue, despite advances in diagnostic technologies, substantial global efforts, and the availability of effective chemotherapies. Mycobacterium tuberculosis, a species of pathogenic bacteria resistant to currently available anti-TB drugs, is on the rise, threatening national and international TB-control efforts. This systematic review and meta-analysis aims to estimate the pooled prevalence of drug-resistant TB (DR-TB) in Ethiopia. Materialsand Methods: A systematic literature search was undertaken using PubMed/MEDLINE, HINARI, the Web of Science, ScienceDirect electronic databases, and Google Scholar (1 January 2011 to 30 November 2020). After cleaning and sorting the records, the data were analyzed using STATA 11. The study outcomes revealed the weighted pooled prevalence of any anti-tuberculosis drug resistance, any isoniazid (INH) and rifampicin (RIF) resistance, monoresistance to INH and RIF, and multidrug-resistant TB (MDR-TB) in newly diagnosed and previously treated patients with TB. Results: A total of 24 studies with 18,908 patients with TB were included in the final analysis. The weighted pooled prevalence of any anti-TB drug resistance was 14.25% (95% confidence interval (CI): 7.05-21.44%)), whereas the pooled prevalence of any INH and RIF resistance was found in 15.62% (95%CI: 6.77-24.47%) and 9.75% (95%CI: 4.69-14.82%) of patients with TB, respectively. The pooled prevalence for INH and RIF-monoresistance was 6.23% (95%CI: 4.44-8.02%) and 2.33% (95%CI: 1.00-3.66%), respectively. MDR-TB was detected in 2.64% (95%CI: 1.46-3.82%) of newly diagnosed cases and 11.54% (95%CI: 2.12-20.96%) of retreated patients with TB, while the overall pooled prevalence of MDR-TB was 10.78% (95%CI: 4.74-16.83%). Conclusions: In Ethiopia, anti-tuberculosis drug resistance is widespread. The estimated pooled prevalence of INH and RIF-monoresistance rates were significantly higher in this review than in previous reports. Moreover, MDR-TB in newly diagnosed cases remained strong. Thus, early detection of TB cases, drug-resistance testing, proper and timely treatment, and diligent follow-up of TB patients all contribute to the improvement of DR-TB management and prevention. Besides this, we urge that a robust, routine laboratory-based drug-resistance surveillance system be implemented in the country.

6.
PLoS One ; 17(6): e0270272, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35771884

RESUMO

BACKGROUND: The rate of multidrug-resistant tuberculosis is increasing at an alarming rate throughout the world. It is becoming an emerging public health problem in East Africa. The prevalence of multidrug-resistant tuberculosis among pulmonary tuberculosis positive individuals in the region has not been thoroughly investigated. AIM: The aim of this systematic review and meta-analysis is to estimate the pooled prevalence of multidrug-resistant tuberculosis among newly diagnosed and previously treated pulmonary tuberculosis cases in East African countries. METHODS: English published articles were systematically searched from six electronic databases: PubMed, EMBASE, Scopus, Science direct, Web of Science, and Google scholar. The pooled prevalence of multidrug-resistant tuberculosis and associated risk factors were calculated using Der Simonian and Laird's random Effects model. Funnel plot symmetry visualization confirmed by Egger's regression asymmetry test and Begg rank correlation methods was used to assess publication bias. A total of 16 articles published from 2007 to 2019 were included in this study. STATA 14 software was used for analysis. RESULTS: Out of 1025 articles identified citations, a total of 16 articles were included in final meta-analysis. The pooled prevalence of multidrug-resistant tuberculosis among newly diagnosed tuberculosis cases and previously treated tuberculosis patients was 4% (95%CI = 2-5%) and 21% (95%CI: 14-28%), respectively. Living conditions, lifestyles (smoking, alcohol use, and drug abuse), previous medical history, diabetes history, and human immunodeficiency virus infection were risk factors contributing to the higher prevalence of multidrug-resistant tuberculosis in East Africa. CONCLUSION: The review found a significant prevalence of multidrug-resistant tuberculosis in the region. An early diagnosis of tuberculosis and rapid detection of drug-resistant Mycobacterium tuberculosis is a critical priority to identify patients who are not responding to the standard treatment and to avoid transmission of resistant strains. It is also very important to strengthen tuberculosis control and improve monitoring of chemotherapy.


Assuntos
Infecções por HIV , Tuberculose Resistente a Múltiplos Medicamentos , Tuberculose Pulmonar , África Oriental/epidemiologia , Humanos , Prevalência , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia , Tuberculose Resistente a Múltiplos Medicamentos/microbiologia , Tuberculose Pulmonar/tratamento farmacológico , Tuberculose Pulmonar/epidemiologia
7.
Pan Afr Med J ; 40: 128, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34909096

RESUMO

INTRODUCTION: foodborne disease (FBD) is a major public health problem globally. Inadequate food workers' knowledge, attitude, and low level of food handling practices (FHPs) may all contribute to the possibility of FBD outbreaks in public food service establishments. This study aimed to assess FHPs and associated factors among food handlers working in public food and drink service establishments in Woldia town, Northeast Ethiopia. METHODS: an institutional-based cross-sectional study was conducted from 01 to 29, January 2017. A total of 288 food handlers were recruited through a simple random selection method. A structured interviewer-administered questionnaire and observation checklists were used to collect the respondents' socio-demographic characteristics, knowledge status on FHPs, and food handling working practices data. Descriptive statistics, bivariate and multivariate logistic regression analysis were employed using SPSS version 20 software. Those variables with a p< 0.05 were considered statistically significant. RESULTS: out of 288 participants, 91.7% were female, and 82.3% were single, while 69.8% were literate. One hundred eighty-four (63.9%) of them were under 15-25 years of age, with a median age of 23.3 years. The proportion of good FHP was (n=134, 46.5%) (95% CI: 41.00-52.4%). Advanced age (adjusted odds ratio (AOR) =12.01, 95% CI: 1.96-73.52), education (participants who attend grades 7-12 (AOR=2.33, 95% CI: 1.14-4.79), and above secondary education (AOR=2.29, 95% CI: 1.05-4.61), work experience above six years (AOR=2.43, 95% CI: 2.08-3.17), received formal training (AOR=1.79, 95% CI: 1.68-4.71), and inspection visits by a concerned body (AOR=2.24, 95% CI: 1.05-3.09) were factors positively associated with handling practices. CONCLUSION: the study revealed that FHP in the study area was low. Age, education, service year, training received and sanitary inspection visits by the regulatory personnel were factors significantly associated with FHPs. This finding highlights the importance of employing regular sanitary inspection visits to public food service establishments by the concerned authority to ensure that all food handlers have the knowledge and the skill to provide safe food.


Assuntos
Serviços de Alimentação , Doenças Transmitidas por Alimentos , Adulto , Estudos Transversais , Etiópia , Feminino , Manipulação de Alimentos , Doenças Transmitidas por Alimentos/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Adulto Jovem
8.
Ann N Y Acad Sci ; 1502(1): 54-71, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34212401

RESUMO

In the following systematic review and meta-analyses, we report several conclusions about resistance to carbapenem and polymyxin last-resort antibiotics for treating multidrug-resistant bacterial infections among pregnant women and infants. Resistance to carbapenems and polymyxins is increasing, even in otherwise vulnerable groups such as pregnant women, toddlers, and infants, for whom therapeutic options are limited. In almost all countries, carbapenem-/polymyxin-resistant Klebsiella pneumoniae, Escherichia coli, and Acinetobacter baumannii infect and/or colonize neonates and pregnant women, causing periodic outbreaks with very high infant mortalities. Downregulation of plasmid-borne blaNDM , blaKPC , blaOXA-48 , blaIMP, blaVIM , blaGES-5 , and ompK35/36 in clonal strains accelerates the horizontal and vertical transmissions of carbapenem resistance among these pathogens. New Delhi metallo-ß-lactamase (NDM)-positive isolates in infants/neonates have been mainly detected in China and India, while OXA-48-positive isolates in infants/neonates have been mainly detected in Africa. NDM-positive isolates in pregnant women have been found only in Madagascar. Antibiotic therapy, prolonged hospitalization, invasive procedures, mechanical ventilation, low birth weight, and preterm delivery have been common risk factors associated with carbapenem/polymyxin resistance. The use of polymyxins to treat carbapenem-resistant infections may be selecting for resistance to both agents, restricting therapeutic options for infected infants and pregnant women. Currently, low- and middle-income countries have the highest burden of these pathogens. Antibiotic stewardship, periodic rectal and vaginal screening, and strict infection control practices in neonatal ICUs are necessary to forestall future outbreaks and deaths.


Assuntos
Farmacorresistência Bacteriana Múltipla , Infecções por Bactérias Gram-Negativas/epidemiologia , Infecções por Bactérias Gram-Negativas/microbiologia , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/microbiologia , Adolescente , Adulto , Antibacterianos/farmacologia , Carbapenêmicos/farmacologia , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Pessoa de Meia-Idade , Epidemiologia Molecular , Mortalidade , Polimixinas/farmacologia , Gravidez , Medição de Risco , Fatores de Risco , Adulto Jovem
9.
J Glob Antimicrob Resist ; 26: 207-218, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34214698

RESUMO

OBJECTIVES: Globally, the incidence and mortality of tuberculosis (TB) are declining; however, low detection of drug-resistant disease threatens to reverse current progress toward global TB control. Multiple rapid molecular diagnostic tests have recently been developed to detect genetic mutations in Mycobacterium tuberculosis (Mtb) known to confer drug resistance. However, their utility depends on the frequency and distribution of resistance-associated mutations in the pathogen population. This review aimed to assess the prevalence of gene mutations associated with rifampicin (RIF)- and isoniazid (INH)-resistant Mtb in Ethiopia. METHODS: We searched the literature in PubMed/MEDLINE, Web of Science, Scopus and Cochrane Library. Data analysis was conducted in Stata 11. RESULTS: Totally, 909 (95.8%) of 949 INH-resistant Mtb isolates had detectable gene mutations: 95.8% in katG315 and 5.9% in the inhA promoter region. Meta-analysis resulted in an estimated pooled prevalence of katGMUT1(S315T1) of 89.2% (95% CI 81.94-96.43%) and a pooled prevalence of inhAMUT1(C15T) of 77.5% (95% CI 57.84-97.13%). Moreover, 769 (90.8%) of 847 RIF-resistant strains had detectable rpoB gene mutations. Meta-analysis resulted in a pooled prevalence of rpoBMUT3(S531L) of 74.2% (95% CI 66.39-82.00%). CONCLUSION: RIF-resistant Mtb were widespread, particularly those harbouring rpoB(S531L) mutation. Similarly, INH-resistant Mtb with katG(S315T1) and inhA(C15T) mutations were common. Tracking S531L, S315T1 and C15T mutations among RIF- and INH-resistant isolates, respectively, would be diagnostically and epidemiologically valuable. Rapid diagnosis of RIF- and INH-resistant Mtb would expedite modification of TB treatment regimens, and proper timely infection control interventions could reduce the risk of development and transmission of multidrug-resistant TB.


Assuntos
Mycobacterium tuberculosis , Tuberculose Resistente a Múltiplos Medicamentos , Resistência a Medicamentos , Etiópia/epidemiologia , Humanos , Isoniazida/farmacologia , Testes de Sensibilidade Microbiana , Mutação , Mycobacterium tuberculosis/genética , Prevalência , Rifampina/farmacologia , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia
10.
Environ Microbiol ; 23(12): 7412-7431, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-33415808

RESUMO

Citrobacter spp., Enterobacter hormaechei subsp., Klebsiella variicola and Proteae tribe members are rarely isolated Enterobacterales increasingly implicated in nosocomial infections. Herein, we show that these species contain multiple genes encoding resistance to important antibiotics and are widely and globally distributed, being isolated from human, animal, plant, and environmental sources in 67 countries. Certain clones and clades of these species were internationally disseminated, serving as reservoirs and mediums for the global dissemination of antibiotic resistance genes. As they can easily transmit these genes to more pathogenic species, additional molecular surveillance studies should be undertaken to identify and contain these antibiotic-resistant species.


Assuntos
Citrobacter , Enterobacter , Animais , Antibacterianos/farmacologia , Citrobacter/genética , Células Clonais , Enterobacter/genética , Klebsiella , Testes de Sensibilidade Microbiana
11.
mSystems ; 5(6)2020 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-33234606

RESUMO

Antibiotic resistance (AR) remains a major threat to public and animal health globally. However, AR ramifications in developing countries are worsened by limited molecular diagnostics, expensive therapeutics, inadequate numbers of skilled clinicians and scientists, and unsanitary environments. The epidemiology of Gram-negative bacteria, their AR genes, and geographical distribution in Africa are described here. Data were extracted and analyzed from English-language articles published between 2015 and December 2019. The genomes and AR genes of the various species, obtained from the Pathosystems Resource Integration Center (PATRIC) and NCBI were analyzed phylogenetically using Randomized Axelerated Maximum Likelihood (RAxML) and annotated with Figtree. The geographic location of resistant clones/clades was mapped manually. Thirty species from 31 countries and 24 genera from 41 countries were analyzed from 146 articles and 3,028 genomes, respectively. Genes mediating resistance to ß-lactams (including bla TEM-1, bla CTX-M, bla NDM, bla IMP, bla VIM, and bla OXA-48/181), fluoroquinolones (oqxAB, qnrA/B/D/S, gyrA/B, and parCE mutations, etc.), aminoglycosides (including armA and rmtC/F), sulfonamides (sul1/2/3), trimethoprim (dfrA), tetracycline [tet(A/B/C/D/G/O/M/39)], colistin (mcr-1), phenicols (catA/B, cmlA), and fosfomycin (fosA) were mostly found in Enterobacter spp. and Klebsiella pneumoniae, and also in Serratia marcescens, Escherichia coli, Salmonella enterica, Pseudomonas, Acinetobacter baumannii, etc., on mostly IncF-type, IncX3/4, ColRNAI, and IncR plasmids, within IntI1 gene cassettes, insertion sequences, and transposons. Clonal and multiclonal outbreaks and dissemination of resistance genes across species and countries and between humans, animals, plants, and the environment were observed; Escherichia coli ST103, K. pneumoniae ST101, S. enterica ST1/2, and Vibrio cholerae ST69/515 were common strains. Most pathogens were of human origin, and zoonotic transmissions were relatively limited.IMPORTANCE Antibiotic resistance (AR) is one of the major public health threats and challenges to effective containment and treatment of infectious bacterial diseases worldwide. Here, we used different methods to map out the geographical hot spots, sources, and evolutionary epidemiology of AR. Escherichia coli, Klebsiella pneumoniae, Salmonella enterica, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterobacter spp., Neisseria meningitis/gonorrhoeae, Vibrio cholerae, Campylobacter jejuni, etc., were common pathogens shuttling AR genes in Africa. Transmission of the same clones/strains across countries and between animals, humans, plants, and the environment was observed. We recommend Enterobacter spp. or K. pneumoniae as better sentinel species for AR surveillance.

12.
BMC Public Health ; 20(1): 1603, 2020 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-33097014

RESUMO

BACKGROUND: Human immunodeficiency virus (HIV) infection is a global health problem. The epidemic is very serious in sub-Saharan Africa with approximately 70% of the global cases. The disease particularly affects youth, accounting for half of the new HIV infections yearly. Inadequate knowledge may contribute to the high rates among youth. Hence, the main aim of this study was to examine the association between residence and comprehensive HIV knowledge among women aged 15-24 years in Ethiopia. METHODS: This cross-sectional study used nationally representative data from the 2016 Ethiopian demographic health survey (n = 5926). Chi-square tests and multivariable logistic regression modeling were performed. RESULTS: Approximately 23.9% of the study participants had a comprehensive HIV knowledge and 74.7% were rural residents. In the multivariable-adjusted model, we found a significant interaction between place of residence and HIV testing on comprehensive HIV knowledge (P for interaction = 0.005). In the subgroup analysis, a statistically significant associations between place of residence and comprehensive HIV knowledge was found only in women who have never been tested for HIV. In this subgroup, rural women had lower odds of having a comprehensive HIV knowledge compared to their urban counterparts (OR 0.42, 95% CI: 0.23-0.74; P = 0.003). Furthermore, in the subgroup of women who have never been tested for HIV, education and region were significantly associated with comprehensive HIV knowledge. Compared to women with no education, the odds of having a comprehensive HIV knowledge were higher in women who had primary (OR 2.86, 95% CI: 1.63-5.02; P < 0.001) and secondary or above education (OR 5.49, 95% CI: 2.92-10.32; P < 0.001), respectively. The odds of having a comprehensive HIV knowledge were lower in women from the Somali region compared to women from Addis Ababa region (OR 0.41, 95% CI: 0.18-0.90; P = 0.027). CONCLUSIONS: Rural residence was negatively associated with comprehensive HIV knowledge only in women who have never been tested for HIV. These findings suggest that the development and implementation HIV education and awareness programs should target rural areas, especially where there is limited access to HIV testing.


Assuntos
Infecções por HIV/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Características de Residência , Adolescente , Estudos Transversais , Escolaridade , Etiópia/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Inquéritos Epidemiológicos , Humanos , Adulto Jovem
13.
Int J Public Health ; 65(9): 1623-1633, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32997150

RESUMO

OBJECTIVES: This systematic review and meta-analysis aimed to reveal the magnitude of neonatal sepsis and its associated factors in East Africa. METHODS: Using PRISMA guideline, we reviewed and meta-analyzed studies from Google Scholar, Cochrane library, and PubMed; last search date: October 15, 2019. Heterogeneity across the studies was estimated. The subgroup analysis was done. Publication bias was also assessed. RESULTS: A total of 26 studies with 11,239 participants are included. The pooled prevalence of neonatal sepsis in East Africa was 29.765% (95% CI 23.36-35.94). Home delivery (AOR = 2.67; 95% CI 1.15-4.00), maternal history of urinary tract infection (UTI) (AOR = 2.083; 95% CI 0.24-3.93), gestational age/(preterm) (AOR = 1.56; 95% CI 1.04-2.08), prolonged labor (AOR = 3.23; 95% CI 0.04-6.51) and PROM (AOR = 1.95; 95% CI 0.53-3.37) were identified associated factors of neonatal sepsis. CONCLUSIONS: The prevalence of neonatal sepsis in East Africa remains high. The relevant stockholders should give attention for neonates delivered from women with intranatal fever to prevent neonatal sepsis. Pregnant women should be screened for UTI. Appropriate interventions should be put in place to manage PROM to decrease the chance of ascending microorganisms.


Assuntos
Sepse Neonatal/epidemiologia , África Oriental/epidemiologia , Feminino , Idade Gestacional , Parto Domiciliar/estatística & dados numéricos , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Trabalho de Parto , Gravidez , Prevalência , Infecções Urinárias/epidemiologia
14.
J Infect ; 79(6): 550-571, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31629017

RESUMO

BACKGROUND: Tuberculosis (TB) remains a main global public health problem. However, a systematic review of TB resistance epidemiology in Africa is wanting. METHODS: A comprehensive systematic search of PubMed, Web of Science and ScienceDirect for English research articles reporting on the molecular epidemiology of Mycobacterium tuberculosis complex resistance in Africa from January 2007 to December 2018 was undertaken. RESULTS AND CONCLUSION: Qualitative and quantitative synthesis were, respectively, undertaken with 232 and 186 included articles, representing 32 countries. TB monoresistance rate was highest for isoniazid (59%) and rifampicin (27%), particularly in Zimbabwe (100%), Swaziland (100%), and Sudan (67.9%) whilst multidrug resistance (MDR) rate was substantial in Zimbabwe (100%), Sudan (34.6%), Ivory Coast (24.5%) and Ethiopia (23.9%). Resistance-conferring mutations were commonly found in katG (n = 3694), rpoB (n = 3591), rrs (n = 1272), inhA (n = 1065), pncA (n = 1063) and embB (n = 705) in almost all included countries: S315G/I/N/R/T, V473D/F/G/I, Q471H/Q/R/Y, S303C/L etc. in katG; S531A/F/S/G, H526A/C/D/G, D516A/E/G etc. in rpoB; A1401G, A513C etc. in rrs; -15C→T, -17G→A/T, -16A→G etc. in inhA; Ins456C, Ins 172 G, L172P, C14R, Ins515G etc. in pncA. Commonest lineages and families such as T (n = 8139), LAM (n = 5243), Beijing (n = 5471), Cameroon (n = 3315), CAS (n = 2021), H (n = 1773) etc., with the exception of T, were not fairly distributed; Beijing, Cameroon and CAS were prevalent in South Africa (n = 4964), Ghana (n = 2306), and Ethiopia/Tanzania (n = 799/635), respectively. Resistance mutations were not lineage-specific and sputum (96.2%) were mainly used for diagnosing TB resistance using the LPA (38.5%), GeneXpert (17.2%), whole-genome sequencing (12.3%) and PCR/amplicon sequencing (9%/23%). Intercountry spread of strains was limited while intra-country dissemination was common. TB resistance and its diagnosis remain a major threat in Africa, necessitating urgent action to contain this global menace.


Assuntos
Farmacorresistência Bacteriana , Genótipo , Mutação , Mycobacterium tuberculosis/efeitos dos fármacos , Mycobacterium tuberculosis/genética , Tuberculose/epidemiologia , Tuberculose/microbiologia , África/epidemiologia , Proteínas de Bactérias/genética , Técnicas de Genotipagem/métodos , Humanos , Testes de Sensibilidade Microbiana/métodos , Epidemiologia Molecular , Mycobacterium tuberculosis/isolamento & purificação , Prevalência
15.
Ethiop J Health Sci ; 29(3): 299-308, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31447498

RESUMO

BACKGROUND: Adherence is the most important factor in determining Antiretroviral Therapy (ART) treatment success and long-term viral suppression. Nonadherence to ART led to the human Immunodeficiency Virus (HIV) related morbidity and mortality. Moreover, it intensifies the risk of the emerging drug resistant HIV strains. This study aimed to assess the level of ART adherence and to identify its predictive associated factors among people living with HIV/AIDS in Hara Town and its surroundings, North-Eastern Ethiopia. METHODS: An institutional facility based cross-sectional study was conducted from April-May 2017. A total of 454 individuals were on ART follow-up in the selected ART-clinic, and only 418 patients were recruited. Bivariate and multivariate logistic regression analyses were carried out to identify associated factors. Odds ratio and 95% Confidence Interval (CI) were calculated to determine the level of significance. RESULTS: The level of ART adherence in the study setting was 300 (71.8%). Participants who had not disclosed their HIV status to their families were 88% less likely to adhere to their ART medication than those who had disclosed their HIV status ((Odds ratio (OR): 0.12, 95%CI:0.05-0.58; p<0.001). On the other hand, participants who had not encountered drug side effects were 2.69 times more likely to adhere to their ART medication than those who had ever encountered drug side effects (OR: 2.69, 95%CI:1.27-5.05; p<0.001). CONCLUSION: A very low level of ART adherence was shown in the study population. It was below the recommended good adherence standard. Therefore, patients should get adequate and comprehensive ART adherence counselling before initiation ART treatment and during the follow-up time.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Adesão à Medicação/estatística & dados numéricos , Adolescente , Adulto , Fármacos Anti-HIV/efeitos adversos , Contagem de Linfócito CD4/estatística & dados numéricos , Estudos Transversais , Escolaridade , Etiópia/epidemiologia , Feminino , Infecções por HIV/psicologia , Humanos , Masculino , Estado Civil , Adesão à Medicação/psicologia , Pessoa de Meia-Idade , Adulto Jovem
16.
Ethiop. j. health sci ; 29(3): 299-308, 2019. tab
Artigo em Inglês | AIM (África) | ID: biblio-1261911

RESUMO

BACKGROUND: Adherence is the most important factor in determining Antiretroviral Therapy (ART) treatment success and long-term viral suppression. Nonadherence to ART led to the human Immunodeficiency Virus (HIV) related morbidityandmortality. Moreover, it intensifies the risk of the emerging drug resistant HIV strains.This study aimed to assess the level of ART adherence and to identify its predictive associated factors among people living with HIV/AIDS in Hara Town and its surroundings, North-Eastern Ethiopia.METHODS: An institutional facility based cross-sectional study was conductedfrom April-May 2017.A total of 454 individuals were on ART follow-up in the selectedART-clinic, and only 418 patients were recruited.Bivariate and multivariate logistic regression analyseswerecarried out to identify associated factors.Odds ratio and 95% Confidence Interval (CI) were calculated to determine the level of significance.RESULTS: The level of ART adherence in the study setting was 300(71.8%).Participants who had not disclosed their HIV status totheir families were 88% less likely to adhereto their ART medicationthan those who had disclosed their HIV status((Odds ratio(OR):0.12, 95%CI:0.05-0.58; p<0.001). On the other hand, participants who had not encountered drug side effects were 2.69 times more likely to adhere to their ART medication than those who had ever encountered drug side effects(OR: 2.69,95%CI:1.27-5.05; p<0.001).CONCLUSION: A very low level of ART adherence was shown in the study population.It was below the recommended good adherence standard. Therefore, patients should get adequate and comprehensive ART adherence counselling before initiation ART treatment and during the follow-up time


Assuntos
Terapia Antirretroviral de Alta Atividade , Etiópia
17.
Artigo em Inglês | MEDLINE | ID: mdl-29568539

RESUMO

BACKGROUND: Neonatal mortality has persisted high in Ethiopia in spite of many efforts being applied to decrease this adverse trend. Early detection of neonatal illness is an important step towards improving newborn survival. Toward this end, there is a need for the mothers to be able to identify signs in neonates that signify severe illnesses. The aim of this study was to assess knowledge about neonatal danger signs and its associated factors among postnatal mothers attending at Woldia general hospital, Ethiopian. METHODS: Institutional based cross-sectional study design was conducted from January-May, 2017. The hospital that provides antenatal care (ANC), delivery, and postnatal services was purposively sampled. Structured interviewer managed questionnaire was administered to postnatal mothers attending Woldia general hospital. Frequencies, bivariate and multivariate logistic regression were determined using the SPSS software (Version 20). RESULTS: During the study period 197 mothers attending postnatal care (PNC) service at Woldia general hospital were interviewed. Information on different neonatal danger signs was not provided to 92(46.7%) postnatal mothers during their antenatal clinic attendance by the healthcare providers. The majority of mothers, 174(88.3%) identified less than six neonatal danger signs. The hotness of the body of neonates was the commonly recognized danger sign by 106(53.8%) postnatal mothers. Of the total mothers, 67(34%), 60(30.5%), 56(28.4%), 44(22.3%) recognized unable to breastfeeding, convulsion, lethargy, difficulty in breathing as newly born danger signs, respectively. Out of 197 mothers, 32(16.2%) were giving birth at home. Mother's age(AOR = 1.33, 95% CI: 1.99-3.08), marital status(AOR = 2.50, 95% CI: 0.29-4.31), mother's education status(AOR = 3.48, 95% CI:1.57-8.72), husband's education(AOR = 4.92, 95% CI: 1.29-12.81), attending ANC (AOR = 2.88, 95% CI: 1.15, 4.85), mother's residence(AOR = 0.78, 95% CI: 0.47-1.65), information about neonatal danger signs(AOR = 3.48, 95% CI 1.40-9.49) had positive association with maternal level of knowledge to identify different neonatal danger signs. CONCLUSION: Maternal knowledge level about neonatal danger signs was very low. Therefore, intervention modalities that focus on increasing level of parental education, access to ANC and PNC service are needed.

18.
Pan Afr Med J ; 31: 35, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30918561

RESUMO

INTRODUCTION: Sexual and reproductive health (SRH) communication is most likely to promote healthy sexual practices and to reduce risky sexual behavior among adolescents. Communication is the principal means for parents to transmit sexual values and knowledge to their children. This study aimed to assess adolescent-parent communication on SRH issues among high school students in Woldia town. METHODS: A cross-sectional study was conducted from December 15-31, 2016. Systematic random sampling technique was used to select 693 students from Grades 9 and 10. Data were entered into Epi-info version 3.5.1 and analyzed by using SPSS version 20. Logistic regression with Odds Ratios (OR) and 95% Confidence intervals (CI) was used to identify the independent predictors of adolescent-parent communication. RESULTS: 674 students accepted to participate in this study giving a response rate of 97.3%. Only 205(30.4%) had discussed on two or more SRH topics with their parents. In logistic regression analyses, mothers who could read and write [AOR=2.0; 95% CI=1.3-3.1] and had diploma certificate [AOR=2.0; 95% CI=1.4-2.9] were more likely to discuss on SRH issues with their children. Adolescents who agreed on the importance of discussion on SRH issues [AOR=2.5; 95% CI=1.3-4.5], whoever got SRH information [AOR=2.0; 95% CI=1.4-2.9] and those whoever had sexual intercourse [AOR=1.7; 95% CI=1.1-2.6] were more likely to discuss on different SRH issues with their parents. CONCLUSION: This study revealed that parent-adolescent communication on SRH issues was inadequate. Therefore, there is a need to equip and educate parents on different adolescents' SRH issues.


Assuntos
Comunicação , Relações Pais-Filho , Saúde Reprodutiva , Estudantes/estatística & dados numéricos , Adolescente , Comportamento do Adolescente , Estudos Transversais , Etiópia , Feminino , Humanos , Modelos Logísticos , Masculino , Comportamento Sexual/estatística & dados numéricos , Adulto Jovem
19.
Springerplus ; 5(1): 1971, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27917346

RESUMO

BACKGROUND: Bacterial meningitis is still a major public health threat in developing countries. It is an overwhelming infection with a high morbidity and mortality rate, especially in neonates. The aim of this study was to determine the prevalence and etiological agents that cause bacterial neonatal meningitis at Tikur Anbessa Specialized Hospital (TASH). METHODS: This is a retrospective analysis of 1189 cerebrospinal fluid (CSF) specimens submitted to the bacteriology laboratory of TASH for culture from 2001 to 2010. All newborns younger than 29 days old that were suspected for bacterial meningitis cases were included in the study. RESULTS: Based on CSF culture, 56 newborns were identified as having bacterial meningitis from a total of 1189 suspected cases. The overall prevalence of neonatal bacterial meningitis from the total suspected cases was 4.7%. The organisms identified and their prevalence rates were Streptococcus pneumoniae 13 (23%), Escherichia coli 9 (16%), Acinetobacter 7 (13%), Neisseria meningitides 5 (9%), Klebsiella spp. 5 (9%), Staphylococcus aureus 3 (5%) and Streptococcus pyogen 3 (5%). There were two (4%) cases each that was caused by Coagulase-Negative-Staphylococcus and Non-Group-A-Streptococcus, while 1 (2%) caused by Haemophilus influenzae. S. pneumoniae was the main etiological agent identified from CSF culture. The male to female ratio was 1:0.88 (53% were male). The birth weights of 34 (61%) patients were under 2500 g, and 22 (39%) patients had normal birth weights. Twenty-seven (48%) were early onset cases, and 29 (52%) were late-onset. CONCLUSION: Streptococcus pneumoniae and Escherichia coli were the two main etiological agents for neonatal bacterial meningitis infection in the study area.

20.
Ethiop J Health Sci ; 26(2): 161-70, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27222629

RESUMO

BACKGROUND: Food safety problems are particularly becoming an increasingly serious threat to public health in developing countries. This study was conducted to assess microbiological safety of street vended foods from May to November, 2014 in Jigjiga City. METHODS: A cross-sectional design was used to answer questions concerning the current status of food hygiene and sanitation practire of street food vending sites. Interview and observational assessments were used to collect socio-demographic data about street food venders. One hundred thirty-two samples of street foods were aseptically collected from four 'kebeles' of Jigjiga City. Both descriptive and analytical statistical methods were applied. RESULTS: The majority of the street food vendors were women, 120(90.9%), with the average age group of 23-49 years, (42.85%), and 99(66.7%) them were illiterate. The study revealed that 95(72%) of the food samples had pathogenic bacterial contaminations. Three different bacterial species were isolated: E. coli 68(51.5%), S. aureus 85(64.4%) and 26(19.7%) Salmonella species. The highest incidence of S. aureus 23/33(69%) was seen in 'Sambusa'; the highest incidence of E. coli 24/33(73.5%) was observed in 'Pasta', while the highest Salmonella incidence was observed in 'Ades'. CONCLUSION: This study revealed that there is a reasonable gap on food safety knowledge among street food venders. The microbial profile was also higher compared to standards set by the World Health Organization. Due attention should be given by the government to improve knowledge about food safety and the quality standard of street foods sold in the City.


Assuntos
Escherichia coli/isolamento & purificação , Inspeção de Alimentos , Microbiologia de Alimentos , Inocuidade dos Alimentos , Salmonella/isolamento & purificação , Staphylococcus aureus/isolamento & purificação , Adulto , Carga Bacteriana , Estudos Transversais , Etiópia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
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