Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 17 de 17
Filtrar
1.
Adv Exp Med Biol ; 1370: 91-102, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36318402

RESUMO

Background Extended-spectrum ß-lactamases (ESBLs)-producing Klebsiella pneumoniae is reported worldwide increasingly. However, studies on ESBLs are still scarce in Ethiopia. Therefore, the current study aimed to determine the magnitude and resistance patterns of ESBL-producing K. pneumoniae as well as the frequency of ESBL-encoding genes.Methods A cross-sectional study was conducted from September 2018 to February 2019 at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia among a total of 132 non-duplicate K. pneumoniae isolates. Phenotypic detection of ESBL production was done using Combined Disc Test. ESBL-encoding genes of blaCTX-M, blaTEM, and blaSHV were detected through multiplex PCR.Results The magnitude of ESBL production was 102/132 (77.3%). ESBL positive isolates were 100% resistant to ceftriaxone, cefotaxime, and cefuroxime. Co-resistance of ESBL-positive isolates to other non ß-lactam antimicrobials was high to trimethoprim-sulfamethoxazole (96.1%) followed by tetracycline (75.5%) and gentamicin (73.5%). However, these isolates showed high susceptibility to amikacin (96.1%) and meropenem (89.2%). From the total ESBL-positive isolates, 82.6%, 73.5%, and 75% carried blaCTX-M, blaTEM, and blaSHV genes, respectively. The majority 78/102 (76.5%) of ESBL-positive isolates harbored all three types of ESBL genes simultaneously.Conclusions The magnitude of ESBL-producing K. pneumoniae isolates was very alarming in the study area. The co-occurrence of blaCTX-M, blaTEM, and blaSHV genes is high, demanding large-scale studies to evaluate the presence of antimicrobial resistance super-clones. ESBL-producing isolates showed high resistance to most of the antimicrobials, needing phenotypic detection of ESBL regularly for better management of patients.


Assuntos
Infecções por Klebsiella , Klebsiella pneumoniae , Humanos , Klebsiella pneumoniae/genética , Centros de Atenção Terciária , beta-Lactamases/genética , Infecções por Klebsiella/tratamento farmacológico , Infecções por Klebsiella/epidemiologia , Infecções por Klebsiella/genética , Etiópia/epidemiologia , Estudos Transversais , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Testes de Sensibilidade Microbiana
2.
Int J Cancer ; 148(3): 723-730, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-32875552

RESUMO

In Ethiopia, cervical cancer is the second leading cause of morbidity and mortality from all cancers in women. Persistent infection with human papillomaviruses (HPV) plays a key role in the development of cervical intraepithelial neoplasia and invasive cervical cancer. To establish baseline data on the population-based prevalence of HPV infection and genotype distribution, we investigated cervical HPV epidemiology among rural women. This population-based study was conducted among rural women aged 30-49 years in Butajira, south-central Ethiopia. A total of 893 samples were tested from 1020 screened women. A self-sampling device (Evalyn Brush, Rovers, Oss, The Netherlands) was used and HPV presence and genotype was determined using multiplexed genotyping (MPG) by BSGP5+/6+ PCR with Luminex read out. The HPV positivity rate was 23.2% (95% CI: 23.54-22.86%) and 20.5% (95% CI = 20.79-20.21) and 10.3% (95% CI = 10.52-10.08) women were high-risk (hr- and low-risk (lr-) HPV positive, respectively. Fifty five (7.2%) of the women showed multiple hr-HPV infections. Age-specific hr-HPV infection peaked in the age-group 30- to 34 years old (58.6%) and decreased in 35-39, 40-44 and 45-49 years to 20.4%, 4.5% and 3.8% respectively. The top five prevalent hr-HPV genotypes were HPV16 (57.1%), 35 (20.3%), 52 (15.8%), 31 (14.1%), and 45 (9.6%) in the Butajira district. As a first population-based study in the country, our results can serve as valuable reference to guide nationwide cervical cancer screening and HPV vaccination programs in Ethiopia.


Assuntos
Alphapapillomavirus/genética , Técnicas de Genotipagem/métodos , Infecções por Papillomavirus/epidemiologia , Manejo de Espécimes/instrumentação , Adulto , Distribuição por Idade , Alphapapillomavirus/classificação , Estudos de Coortes , DNA Viral/genética , Detecção Precoce de Câncer , Etiópia/epidemiologia , Feminino , Promoção da Saúde , Humanos , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase Multiplex , Infecções por Papillomavirus/virologia , Prevalência , Saúde da População Rural , População Rural , Autoteste
3.
BMC Cancer ; 20(1): 563, 2020 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-32552740

RESUMO

BACKGROUND: Cervical cancer is the fourth most common cancer among women worldwide. Sub- Saharan Africa has a high incidence, prevalence and mortality due to shortage and underutilization of screening facilities. This study aims to assess knowledge and attitude towards cervical cancer and its prevention, as well as practice of cervical cancer screening. METHODS: This cross-sectional community- based study was conducted in Butajira, Ethiopia in February 2018. Systematic cluster randomized sampling was used to select households from which women in the targeted age group of 30-49 years were invited to participate. Data was collected using a quantitative door to door approach. The questionnaire included socio-demographic data, obstetric history, general knowledge, risk factors, attitude and practice. Logistic regression was used to assess factors associated with knowledge, attitude and practice after dichotomizing the scores using the median as cut off point. RESULTS: Three hundred forty-two out of 354 women completed the interviewer administered questionnaire making the response rate 96.3%. 125 women (36%) were aware of cervical cancer and 14 (4.7%) knew symptoms. None of the women named HPV as a risk factor. 61% thought it was a deadly disease, 13.5% felt at risk of developing cervical cancer and 60.7% said cervical cancer is treatable. Eight women (2.3%) had previously been screened. 48.1% had a source of information concerning cervical cancer, of which 66.5% named nurses. Better knowledge was associated with 1-8 years of education (OR = 2.4; CI: 2.4-1.3), having a source of information (OR = 9.1, CI:4.0-20.6), use of contraceptives (OR = 2.3, CI: 1.3-4.0) and a higher income (OR = 1.009, CI: 1.00-1.01). Naming nurses (OR:5.0, CI:2.4-10.3), another source of information (OR = 3.3, CI:1.2-9.0), use of contraceptives (OR = 2.2, CI:1.2-3.8) and living in an urban area (OR = 3.3, CI:1.2-9.0) were associated with a positive attitude. Naming nurses (OR = 21,0, CI:10.4-42.3) and another source of information (OR = 5.8, CI:2.4-13.5) were associated with participating in cervical cancer screening. CONCLUSION: Most women were unaware of cervical cancer, HPV-infection as a risk factor and did not feel susceptible to cervical cancer. As Health workers were the most commonly mentioned source of information, focus should be put on their further education.


Assuntos
Detecção Precoce de Câncer/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Programas de Rastreamento/psicologia , Infecções por Papillomavirus/diagnóstico , Neoplasias do Colo do Útero/prevenção & controle , Adulto , Fatores Etários , Alphapapillomavirus/patogenicidade , Estudos Transversais , Detecção Precoce de Câncer/estatística & dados numéricos , Escolaridade , Etiópia , Feminino , Humanos , Renda/estatística & dados numéricos , Programas de Rastreamento/estatística & dados numéricos , Pessoa de Meia-Idade , Infecções por Papillomavirus/patologia , Infecções por Papillomavirus/virologia , Fatores de Risco , População Rural/estatística & dados numéricos , Inquéritos e Questionários/estatística & dados numéricos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/virologia
4.
Glob Health Action ; 17(1): 2401862, 2024 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-39285841

RESUMO

BACKGROUND: Although cancer incidence and mortality are rising in Ethiopia, lay and health professional perceptions of the disease remain limited. OBJECTIVE: To explore perceptions of cancer, including its causes, signs and symptoms, and transmission within a rural community in Ethiopia. METHODS: We conducted a qualitative study in four rural neighbourhoods of Butajira in central Ethiopia. Seven Focus Group Discussions (FGDs) and six In-Depth Interviews (IDIs) were held with community members, women representatives, religious leaders and key informants using two interview guides (divided by method). Behaviour change theories and a community research framework were used to summarize the findings. RESULTS: Across respondent categories and data collection methods, respondents described cancer or nekersa, which translates as 'an illness that cannot be cured', as serious and fatal. Cancer was further viewed as becoming more common and as underpinning more deaths particularly among women. Causes of cancer largely focused on individual behaviours namely mitch (referring to exposure to sunlight), poor personal hygiene and urinating on the ground/dirty areas. Almost all participants strongly related cancer to a wound that does not heal and entails a foul-smelling discharge. Bleeding and weight loss were other commonly mentioned complaints of cancer. CONCLUSIONS: Although cancer is known among rural communities in this area, misconceptions about cancer aetiology and conflation of the signs and symptoms of cancer versus other diseases merit health messaging. Our study calls for design research to determine how to culturally tailor educational materials and deliver health campaigns regarding cancer causes, signs and symptoms within this context.


Main findings: Despite efforts to enhance cancer awareness and understanding among rural residents in Ethiopia, various misconceptions persist regarding its causes, transmission and prevention measures.Added knowledge: Unfavourable community perceptions, such as viewing cancer as a death sentence and believing in scientifically unfounded causes and modes of transmission, can significantly impede efforts for cancer prevention and control.Global health impact for policy and action: Effective global health action and policy must start from the local understanding of the terminologies and the perceived cause of the disease to design all-inclusive cancer prevention and control strategies.


Assuntos
Grupos Focais , Conhecimentos, Atitudes e Prática em Saúde , Neoplasias , Pesquisa Qualitativa , População Rural , Humanos , Etiópia , Feminino , Masculino , Neoplasias/psicologia , Adulto , Pessoa de Meia-Idade , Entrevistas como Assunto , Adulto Jovem , Idoso
5.
Microorganisms ; 11(4)2023 Mar 24.
Artigo em Inglês | MEDLINE | ID: mdl-37110255

RESUMO

Although high-risk human papillomavirus infection is a well-established risk factor for cervical cancer, other co-factors within the local microenvironment may play an important role in the development of cervical cancer. The current study aimed to characterize the cervicovaginal microbiota in women with premalignant dysplasia or invasive cervical cancer compared with that of healthy women. The study comprised 120 Ethiopian women (60 cervical cancer patients who had not received any treatment, 25 patients with premalignant dysplasia, and 35 healthy women). Cervicovaginal specimens were collected using either an Isohelix DNA buccal swab or an Evalyn brush, and ribosomal RNA sequencing was used to characterize the cervicovaginal microbiota. Shannon and Simpson diversity indices were used to evaluate alpha diversity. Beta diversity was examined using principal coordinate analysis of weighted UniFrac distances. Alpha diversity was significantly higher in patients with cervical cancer than in patients with dysplasia and in healthy women (p < 0.01). Beta diversity was also significantly different in cervical cancer patients compared with the other groups (weighted UniFrac Bray-Curtis, p < 0.01). Microbiota composition differed between the dysplasia and cervical cancer groups. Lactobacillus iners was particularly enriched in patients with cancer, and a high relative abundance of Lactobacillus species was identified in the dysplasia and healthy groups, whereas Porphyromonas, Prevotella, Bacteroides, and Anaerococcus species predominated in the cervical cancer group. In summary, we identified differences in cervicovaginal microbiota diversity, composition, and relative abundance between women with cervical cancer, women with dysplasia, and healthy women. Additional studies need to be carried out in Ethiopia and other regions to control for variation in sample collection.

6.
PLoS One ; 17(4): e0267657, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35476721

RESUMO

BACKGROUND: Infections caused by Klebsiella pneumoniae have been difficult to control because of the worldwide emergence of carbapenem-resistant isolates mainly due to carbapenemase production. Information regarding carbapenemase-producing K. pneumoniae is still scarce in Ethiopia. Therefore, the current study aimed to determine the prevalence of carbapenemase-producing K. pneumoniae and to assess the occurrence of blaNDM and blaKPC carbapenemase genes. METHODS: A cross-sectional study was conducted from September 2018 to February 2019 at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia. A total of 132 non-duplicate K. pneumoniae isolates were studied. Phenotypic confirmation of carbapenemase production was done by modified Carbapenem Inactivation Method (mCIM). Multiplex PCR was performed for the detection of carbapenemase-encoding genes blaKPC, and blaNDM. RESULTS: Out of the total 132 K. pneumoniae isolates, 39 (29.6%) were non-susceptible to one or more carbapenems. The prevalence of carbapenemase-producing isolates from the total was 28 (21.2%) with mCIM of which the most dominant gene was blaNDM 26 (92.9%) and one isolate carried blaKPC concomitantly. Carbapenemase-producing K. pneumoniae isolates were 100% non-susceptible to half of the antimicrobials used in the study, including meropenem and ertapenem. Previous use of carbapenems was associated with carbapenemase production (P = 0.004). CONCLUSIONS: The prevalence of carbapenemase-producing K. pneumoniae isolates was worrying in the study area. To our knowledge, the study described the emergence of blaNDM and blaKPC gene carrying K. pneumoniae in Ethiopia for the first time. Further large-scale molecular-based studies, including other carbapenemase genes and sequencing of K. pneumoniae, are warranted to have a clear awareness about the presence of antimicrobial resistance high-risk clones in Ethiopia.


Assuntos
Carbapenêmicos , Klebsiella pneumoniae , Proteínas de Bactérias , Carbapenêmicos/farmacologia , Carbapenêmicos/uso terapêutico , Estudos Transversais , Etiópia/epidemiologia , Klebsiella pneumoniae/genética , Testes de Sensibilidade Microbiana , beta-Lactamases
7.
Cancer Manag Res ; 14: 2253-2263, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35937937

RESUMO

Purpose: High-risk Human Papillomavirus (HPV) is the most important cause of cervical cancer. The highest burden of disease is seen in Low- and Low-Middle-Income Countries (LMIC). Several new HPV screening assays have been developed for high-risk HPV (hr-HPV) testing. We compared the performance and adequacy of three HPV genotyping assays on samples from a population of rural women in south-central Ethiopia. Patients and Methods: One hundred and ten cervical swabs from rural women screened for HPV were assayed. HPV DNA was tested using MPG-Luminex Assay, Anyplex II HPV HR Detection, and EUROArray HPV. MPG-Luminex Assay was used as a reference method to compute the sensitivity and specificity of the two commercial assays in detecting hr-HPV infections. Results: Of the 110 samples, MPG-Luminex Assay found 18.2% positive for the 14 hr-HPV and 7.3% for the probable hr-HPV genotypes. Anyplex™ II HPV HR Detection assay and EUROArray HPV Assay identified 21.82% and 12.7% samples, respectively, for the 14 hr-HPVs and both 7.3% for the probable hr-HPV genotypes (κ=0.734). Among the 14 hr-HPV genotypes, the genotype-specific agreement of the three HPV genotyping assays was moderate or better for HPV16, 31, 35, 39, 52, 56, 66 and 68. The aggregated sensitivity in detecting the 14 hr-HPV infections of Anyplex™ II HPV HR Detection and EUROArray HPV assays was high, 100% and 70%, respectively. The specificities of Anyplex™ II HPV HR Detection and EUROArray HPV were 95.6% and 100%, respectively. Conclusion: The three evaluated assays showed similar analytical performance in the detection of hr-HPV infections and moderate or better concordance in HPV genotyping. This study is part of the ongoing cluster-randomized trial that has been registered in clinicaltrials.gov (NCT03281135) on September 13, 2017.

8.
Infect Drug Resist ; 15: 4299-4305, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35965848

RESUMO

Background: When faced with a public health problem such as the COVID-19 pandemic, devising a test with an accurate and rapid diagnostic capacity is critical to contain the disease. We compared the diagnostic performance of a rapid antigen test in comparison with a reference method, namely a real-time polymerase chain reaction (RT-PCR) assay. Methods: We enrolled patients with confirmed COVID-19 from two selected hospital in Addis Ababa, Ethiopia, between January and November 2021. We assessed the performance of the Standard Q COVID-19 Ag Kit (SD Biosensor, Republic of Korea) in 200 nasopharyngeal and nasal swab samples. Results: Out of the 200 samples utilized for the diagnostic performance evaluation, equal proportion of the samples were confirmed positive and negative for SARS-CoV-2 based on RT-PCR. Of the 100 confirmed positive cases, 95 showed positive results with the rapid antigen test, yielding a sensitivity of 95% (95% confidence interval [CI] 88.7-98.4%). Of the 100 confirmed negative cases, there were three false-positive results, yielding a specificity of 97% (95% CI 91.5-99.4%). The sensitivity of the rapid antigen test was higher for samples with an RT-PCR cycle threshold (Ct) value ≤25 compared with samples with a higher Ct value. Conclusion: The finding demonstrated that the detection capacity of the Standard Q COVID-19 Ag Test meets the requirements set by the Ministry of Health Ethiopia. The high sensitivity and specificity of the test device indicate the possibility of using it for diagnostic and clinical purposes in resource-constrained settings such as Ethiopia.

9.
Antibiotics (Basel) ; 10(8)2021 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-34439057

RESUMO

Klebsiella pneumoniae poses an urgent public health threat, causing nosocomial outbreaks in different continents. It has been observed to develop resistance to antimicrobials more easily than most bacteria. These days, multidrug-resistant strains are being increasingly reported from different countries. However, studies on the surveillance of multidrug-resistant Klebsiella pneumoniae are very rare in Ethiopia. This study aimed to determine the antimicrobial resistance patterns and magnitude of MDR K. pneumoniae isolates from patients attending or admitted to Tikur Anbessa Specialized Hospital (TASH). A cross-sectional study was conducted from September 2018 to February 2019 at TASH, Addis Ababa, Ethiopia. Identification of K. pneumoniae was done by examining the Gram stain, colony characteristics on MacConkey agar and 5% sheep blood agar, as well as using a series of biochemical tests. Antimicrobial susceptibility testing of the isolates for 21 antimicrobials was done by the Kirby-Bauer disc diffusion technique. Data were double entered using Epidata 3.1 and exported to SPSS version 25 software for analysis. Among the total K. pneumoniae isolates (n = 132), almost all 130 (98.5%) were MDR. Two (1.5%) isolates showed complete non-susceptibility to all antimicrobial agents tested. Moreover, a high rate of resistance was observed to cefotaxime and ceftriaxone 128 (97%), trimethoprim-sulfamethoxazole 124 (93.9%), and cefepime 111 (84.1%). High susceptibility was recorded to amikacin 123 (93.2%), imipenem 107 (81.1%), meropenem 96 (72.7%), and ertapenem 93 (70.5%). K. pneumoniae isolates showed a high rate of resistance to most of the tested antimicrobials. The magnitude of MDR K. pneumoniae was very alarming. Therefore, strengthening antimicrobial stewardship programs and antimicrobial surveillance practices is strongly recommended in TASH.

10.
PLoS One ; 16(1): e0244780, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33411766

RESUMO

BACKGROUND: The COVID-19 pandemic is impacting the global community in many ways. Combating the COVID-19 pandemic requires a coordinated effort through engaging public and service providers in preventive measures. The government of Ethiopia had already announced prevention guidelines for the public. However, there is a scarcity of evidence-based data on the public knowledge, attitude, and practice (KAP) and response of the service providers regarding COVID-19. OBJECTIVE: This study aimed to assess the public KAP and service providers' preparedness towards the pandemic in Addis Ababa, Ethiopia. METHODS: A community-based cross-sectional study was conducted in Addis Ababa, Ethiopia, from late March to the first week of April 2020. Participants were conveniently sampled from 10 different city sites. Data collection was performed using a self-administered questionnaire and observational assessment using a checklist. All statistical analysis was performed using SPSS version Descriptive statistics, correlation coefficient and chi-square tests were performed. RESULT: A total of 839 public participants and 420 service providers enrolled in the study. The mean age was 30.30 (range = 18-72) years. The majority of the respondents (58.6%) had moderate knowledge about COVID-19, whereas 37.2% had good knowledge. Moreover, 60.7% and 59.8% of the participants had a positive attitude towards preventive measures and good practice to mitigate the pandemic, respectively. There was a moderate positive correlation between knowledge and attitude, whereas the correlations between knowledge and practice and attitude and practice were weak. With regard to service providers' preparedness, 70% have made hand-washing facilities available. A large majority of the respondents (84.4%) were using government-owned media followed by social media (46.0%) as a main source of information. CONCLUSION: The public in Addis Ababa had moderate knowledge, an optimistic attitude and descent practice. The information flow from government and social media seemed successful seeing the majority of the respondents identifying preventive measures, signs and symptoms and transmission route of SARS-CoV-2. Knowledge and attitude was not associated with practice, thus, additional innovative strategies for practice changes are needed. Two thirds of the service provider made available hand washing facilities which seems a first positive step. However, periodic evaluation of the public KAP and assessment of service providers' preparedness is mandatory to combat the pandemic effectively.


Assuntos
COVID-19/prevenção & controle , COVID-19/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Adulto , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Estudos Transversais , Etiópia/epidemiologia , Feminino , Higiene das Mãos , Humanos , Masculino , Distanciamento Físico
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa