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1.
BMC Infect Dis ; 24(1): 598, 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38890616

RESUMO

INTRODUCTION: Cutaneous Leishmaniasis (CL) is caused by protozoan parasite called Leishmania. It is endemic in more than 100 countries globally. Despite its vast prevalence and impact on quality of life, it is one of the most neglected tropical dermatological diseases. The CL burden has often been expressed based on the physical disfigurement caused by the disease. However, considering the impact of the disease beyond physical impairment and changes in patients' appearance would help to better understand the disease as a public health problem. The effect of CL on patients' quality of life was determined in this study. METHODS: The data that were related to quality of life were collected using Standard one-week Dermatology Life Quality Index (DLQI) questionnaire. The questions were categorized under seven domains: symptoms & feelings, daily activities, work and school, leisure, personal relationships, and treatment. Each question was scored on a three-point scale: Very much (3), A lot (2), A little (1), Undecided (0), and Not at all (0). The sum of the scores lied between 0 and 48. A higher score shows worse quality of life. The data were entered and analysed using Statistical Package for Social Science 23. Frequencies and proportions were used to describe the data. Differences were considered statistically significant at p < 0.05. RESULTS: The lives of the majority of CL patients (60.7%) were significantly affected by CL. The quality of life of patients was moderately impacted by CL in 25% of the CL patients. In 32.1% of the CL patients, the effect of CL on patients' quality of life was very large. The quality of one CL patient's life was extremely largely affected. The disease had a small effect on 32.1% of the CL patients. Personal relationship was the most affected domain followed by symptoms and feelings and treatment. Future study including rural regions is required. CONCLUSION: The Dermatology Life Quality Index demonstrates that CL has a small to extremely very large negative effect on the quality of life of patients.


Assuntos
Leishmaniose Cutânea , Qualidade de Vida , Humanos , Leishmaniose Cutânea/psicologia , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto Jovem , Adolescente , Idoso , Criança
2.
Cancer Causes Control ; 34(1): 1-11, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36242682

RESUMO

BACKGROUND: Cervical cancer is one of the most common malignancies affecting women worldwide with large geographic variations in prevalence and mortality rates. It is one of the leading causes of cancer-related deaths in Ethiopia, where vaccination and screening are less implemented. However, there is a scarcity of literature in the field. Therefore, the objective of this review was to describe current developments in cervical cancer in the Ethiopian context. The main topics presented were the burden of cervical cancer, knowledge of women about the disease, the genotype distribution of Human papillomavirus (HPV), vaccination, and screening practices in Ethiopia. METHODS: Published literature in the English language on the above topics until May 2021 were retrieved from PubMed/Medline, SCOPUS, Google Scholar, and the Google database using relevant searching terms. Combinations of the following terms were considered to retrieve literature; < Cervical cancer, uterine cervical neoplasms, papillomavirus infections, papillomavirus vaccines, knowledge about cervical cancer, genotype distribution of HPV and Ethiopia > . The main findings were described thematically. RESULTS: Cervical cancer is the second most common and the second most deadly cancer in Ethiopia, The incidence and prevalence of the disease is increasing from time to time because of the growth and aging of the population, as well as an increasing prevalence of well-established risk factors. Knowledge and awareness about cervical cancer is quite poor among Ethiopian women. According to a recent report (2021), the prevalence of previous screening practices among Ethiopian women was at 14%. Although HPV 16 is constantly reported as the common genotype identified from different grade cervical lesions in Ethiopia, studies reported different HPV genotype distributions across the country. According to a recent finding, the most common HPV types identified from cervical lesions in the country were HPV-16, HPV-52, HPV-35, HPV-18, and HPV-56. Ethiopia started vaccinating school girls using Gardasil-4™ in 2018 although the coverage is insignificant. Recently emerging reports are in favor of gender-neutral vaccination strategies with moderate coverage that was found superior and would rapidly eradicate high-risk HPVs than vaccinating only girls. CONCLUSIONS: Cervical cancer continues to be a major public health problem affecting thousands of women in Ethiopia. As the disease is purely preventable, classic cervical cancer prevention strategies that include HPV vaccination using a broad genotype coverage, screening using a high precision test, and treating cervical precancerous lesions in the earliest possible time could prevent most cervical cancer cases in Ethiopia. The provision of a focused health education supported by educational materials would increase the knowledge of women about cervical cancer in general and the uptake of cervical cancer prevention and screening services in particular.


Assuntos
Infecções por Papillomavirus , Vacinas contra Papillomavirus , Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/diagnóstico , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Etiópia/epidemiologia , Papillomavirus Humano , Papillomaviridae/genética , Vacinas contra Papillomavirus/uso terapêutico , Papillomavirus Humano 16
3.
Lipids Health Dis ; 22(1): 56, 2023 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-37106418

RESUMO

BACKGROUND: The serum lipid and immunohematological values of tuberculosis lymphadenitis (TBLN) patients is poorly documented relative to pulmonary tuberculosis (PTB) cases. Therefore, the aim of this study was to investigate the serum lipid and immunohematological values of patients with TBLN in comparison with PTB (PTB) patients. METHODS: An institution-based comparative cross-sectional study was conducted in Northwest Ethiopia from March to December 2021. The study participants were bacteriologically confirmed PTB (n = 82) and TBLN (n = 94) cases with no known comorbidity and whose ages was greater than 18 years and with no current pregnancy. Independent sample t-test, one-way ANOVA, box plot, and correlation matrix were used to analyze the data. RESULTS: The body mass index (BMI), CD4 + T cell count, and high-density lipoprotein-Cholesterol (HDL-C) values were significantly higher among TBLN cases compared with PTB cases. Additionally, the total white blood cell (WBC) count, hemoglobin (Hb), total Cholesterol (CHO) and creatinine (Cr) values were relatively higher among TBLN than PTB (P > 0.05). On the reverse, the platelet count and triacylglycerol (TAG) values were relatively higher among PTB than in TBLN cases. While the mean days of culture positivity were 11.6 days for TBLN, the mean days of culture positivity were 14.0 days for PTB. Anemia and serum lipid values showed no correlation with sputum bacilli load and time to culture positivity. CONCLUSION: Tuberculous lymphadenitis patients were well-endowed with serum lipid, immunological and nutritional status compared with PTB cases. Hence, the high incidence rate of TBLN in Ethiopia could not be explained by low peripheral immunohematological values, malnutrition, Anemia, and dyslipidemia. Further study for identifying the predictors for TBLN in Ethiopia is highly desirable.


Assuntos
Bacillus , Linfadenite , Mycobacterium tuberculosis , Tuberculose dos Linfonodos , Tuberculose Pulmonar , Humanos , Adulto , Adolescente , Escarro , Estudos Transversais , Tuberculose dos Linfonodos/epidemiologia , Tuberculose Pulmonar/epidemiologia , Firmicutes , Colesterol , Lipídeos
4.
Can J Infect Dis Med Microbiol ; 2023: 2305681, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37492856

RESUMO

Background: Most gastric cancers in the world are attributed to Helicobacter pylori (H. pylori) infections. The prevalence of H. pylori infection is influenced by socioeconomic status, hygiene, and lifestyle of the population. This study aimed to assess sero- and feco-prevalence of H. pylori infections and its associated risk factors among adult dyspeptic patients visiting the outpatient department of Adet Primary Hospital, Yilmana Densa District, northwest Ethiopia. Methods: A hospital-based cross-sectional study was conducted from February 10, 2022 to April 10, 2022. The study participants were selected using a systematic random sampling technique. The data were collected by pretested questionnaires. Blood and stool specimens were collected from each patient for antibody and H. pylori antigen tests, respectively. The data were analyzed using Statistical Package for Social Science (SPSS) version 26.0. A logistic regression model was used to assess the strength of association between H. pylori positivity and risk factors. Results: The sero- and feco-prevalence of H. pylori infection was 62% and 51.1%, respectively. In those patients who had a positive result with either the antibody (Ab) or antigen (Ag) test, rural residence (AOR = 5.55; 95% CI: 2.34-13.14; p < 0.001), alcohol consumption (AOR = 12.34; 95% CI: 2.29-66.51; p=0.003), having no awareness about H. pylori transmission (AOR = 4.76; 95% CI: 1.86-12.15; p=0.001), using pond/river as a source of drinking water (AOR = 5.22; 95% CI: 1.91-14.27; p=0.001), and open field defecation (AOR = 4.19; 95% CI: 1.67-10.52; p=0.002) were the explanatory risk factors significantly associated with H. pylori infection. Conclusion: This study showed that the prevalence of H. pylori infection was very high. Most cases of gastric cancers are ascribed to H. pylori infection. Therefore, education should be given to communities so as to increase their awareness of the infection and the associated major explanatory risk factors identified in the present study.

5.
Virol J ; 19(1): 13, 2022 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-35033141

RESUMO

BACKGROUND: Cervical cancer is caused by infection with high-risk human papillomaviruses (HR-HPVs). It is one of the leading causes of cancer-related deaths in Ethiopia and globally. To develop efficient vaccination and HPV-based cervical cancer screening approaches, data on genotype distribution of HPVs is crucial. Hence, the study was aimed to review HPV genotype distribution in Ethiopia. METHODS: Research articles were systematically searched using comprehensive search strings from PubMed/Medline and SCOPUS. Besides, Google Scholar was searched manually for grey literature. The last search was conducted on 18 August 2021. The first two authors independently appraised the studies for scientific quality and extracted the data using Excel sheet. The pooled HPV genotype distribution was presented with descriptive statistics. RESULTS: We have included ten studies that were reported from different parts of the country during 2005 and 2019. These studies included 3633 women presented with different kinds of cervical abnormalities, from whom 29 different HPV genotypes with a sum of 1926 sequences were reported. The proportion of high-risk, possible/probable high-risk and low-risk HPVs were at 1493 (77.5%), 182 (9.4%) and 195 (10.1%), respectively. Of the reported genotypes, the top five were HPV 16 (37.3%; 95% CI 35.2.1-39.5%), HPV 52 (6.8%; 95% CI 5.8-8.0%), HPV 35 (4.8%; 95% CI 3.9-5.8%), HPV 18 (4.4%; 95% CI 3.5-5.3%) and HPV 56 (3.9%: 95% CI 3.1-4.9%). Some of other HR-HPV groups include HPV 31 (3.8%), HPV 45 (3.5%), HPV 58 (3.1%), HPV 59(2.3%), and HPV 68 (2.3%). Among the high-risk types, the combined prevalence of HPV 16/18 was at 53.7% (95% CI 51.2-56.3%). HPV 11 (2.7%: 95% CI 2.1-3.5%), HPV 42 (2.1%: 95% CI 1.5-2.8%) and HPV 6 (2.1%: 95% CI 1.4-2.7%) were the most common low-risk HPV types. CONCLUSIONS: We noted that the proportion of HR-HPV types was higher and HPV 16 in particular, but also HPV 52, HPV 35 and HPV 18, warrant special attention in Ethiopian's vaccination and HPV based cervical screening program. Additional data from other parts of the country where there is no previous HPV genotype report are needed to better map the national HPV genotypes distribution of Ethiopia.


Assuntos
Infecções por Papillomavirus , Neoplasias do Colo do Útero , Detecção Precoce de Câncer , Etiópia/epidemiologia , Feminino , Genótipo , Papillomavirus Humano 16/genética , Papillomavirus Humano 18/genética , Humanos , Papillomaviridae/genética , Infecções por Papillomavirus/epidemiologia , Prevalência , Neoplasias do Colo do Útero/epidemiologia
6.
Malar J ; 21(1): 313, 2022 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-36333723

RESUMO

BACKGROUND: In Ethiopia, malaria is a major concern to the health, and socio-economic development of the country because of its occurrence at the peak agricultural activities. Factors such as environmental, human host, parasite, and vector determine malaria transmission. Therefore, the present study was conducted to determine the prevalence and associated factors of malaria among febrile patients who visited selected health centres. METHODS: Institutional-based cross-sectional study was conducted between October 2020 to July 2021 in eight selected health centres located in Lake Tana and its surrounding areas. A simple random sampling technique was used to select febrile patients. Thick and thin blood films were prepared and processed according to the WHO guidelines. Socio-demographic and malaria risk factors were collected from study participants who could read and write using a self-administered questionnaire, whereas face-to-face interview was used to collect information from those participants who could not write and read. The strength of association between risk factors and malaria was assessed using univariate and multivariate logistic regression models. RESULTS: Of the total (531) febrile patients, 75.3% were malaria negative and 24.7% (overall prevalence) were malaria confirmed cases. Most of the infections were caused by Plasmodium falciparum (72.5%) followed by Plasmodium vivax (23.7%) and mixed-species (3.8%). The highest prevalence was recorded in Kidist Hana (51.5%) followed by Robit (34.8%), Gorgora (30.3%), and Wusha Tiris (25%) health centres. In terms of months, the highest prevalence (37.5%) was detected in October whereas the lowest (14%) was in March. Logistic regression analysis revealed that gender (p = 0.023), educational level (p = 0.025), study month (p = 0.036), presence of eave in the house (p = 0.002) and wall openings (p = 0.041), not using bed nets (p = 0.001), sleeping in the same house with cattle (p = 0.031) and the distance between mosquito-breeding site and living house (p = 0.020) were explanatory risk factors significantly associated with malaria among studied participants. CONCLUSIONS: In this study, we confirmed that the occurrence of malaria prevalence was high and continued against the Ethiopian malaria elimination plan of 2021-2025. Therefore, to meet the goals of this plan, the current prevention and control efforts should be stepped up even better in the coming years.


Assuntos
Malária Falciparum , Malária Vivax , Malária , Humanos , Animais , Bovinos , Etiópia/epidemiologia , Prevalência , Estudos Transversais , Lagos , Mosquitos Vetores , Malária/prevenção & controle , Plasmodium vivax , Plasmodium falciparum , Fatores de Risco , Malária Falciparum/epidemiologia , Malária Falciparum/parasitologia , Malária Vivax/epidemiologia , Malária Vivax/parasitologia
7.
Rev Med Virol ; 31(3): e2181, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33152146

RESUMO

This study aimed to assess the diagnostic test accuracy (DTA) of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) serological test methods and the kinetics of antibody positivity. Systematic review and meta-analysis were conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline. We included articles evaluating the diagnostic accuracy of serological tests and the kinetics of antibody positivity. MEDLINE through PubMed, Scopus, medRxiv and bioRxiv were sources of articles. Methodological qualities of included articles were appraised using QUADAS-2 while Metandi performs bivariate meta-analysis of DTA using a generalized linear mixed-model approach. Stata 14 and Review Manager 5.3 were used for data analysis. The summary sensitivity/specificity of chemiluminescence immunoassay (CLIA), enzyme-linked immunosorbent assay (ELISA) and lateral flow immunoassay (LFIA) were 92% (95% CI: 86%-95%)/99% (CI: 97%-99%), 86% (CI: 82%-89%)/99% (CI: 98%-100%) and 78% (CI: 71%-83%)/98% (95% CI: 96%-99%), respectively. Moreover, CLIA-based assays produced nearly 100% sensitivity within 11-15 days post-symptom onset (DPSO). Based on antibody type, the sensitivity of ELISA-total antibody, CLIA-IgM/G and CLIA-IgG gauged at 94%, 92% and 92%, respectively. The sensitivity of CLIA-RBD assay reached 96%, while LFIA-S demonstrated the lowest sensitivity, 71% (95% CI: 58%-80%). CLIA assays targeting antibodies against RBD considered the best DTA. The antibody positivity rate increased corresponding with DPSO, but there was some decrement when moving from acute phase to convalescent phase of infection. As immunoglobulin isotope-related DTA was heterogeneous, our data have insufficient evidence to recommend CLIA/ELISA for clinical decision-making, but likely to have comparative advantage over RT-qPCR in certain circumstances and geographic regions.


Assuntos
Teste Sorológico para COVID-19/normas , COVID-19/diagnóstico , Ensaio de Imunoadsorção Enzimática/normas , Citometria de Fluxo/normas , Medições Luminescentes/normas , SARS-CoV-2/patogenicidade , Anticorpos Antivirais/sangue , COVID-19/epidemiologia , COVID-19/imunologia , COVID-19/virologia , Teste Sorológico para COVID-19/métodos , Convalescença , Humanos , Imunoglobulina G/sangue , Imunoglobulina M/sangue , RNA Viral/genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa/normas , SARS-CoV-2/genética , SARS-CoV-2/imunologia , Sensibilidade e Especificidade , Índice de Gravidade de Doença
8.
BMC Infect Dis ; 22(1): 297, 2022 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-35346087

RESUMO

BACKGROUND: Strongyloides stercoralis is an intestinal parasite that can cause chronic infection, hyperinfection and/or a dissemination syndrome in humans. The use of techniques targeting ova fails to detect S. stercoralis, as only larvae of the parasite are excreted in faeces. Due to the absence of "Gold" standard diagnostic method for S. stercoralis, there is a paucity of reported data worldwide. OBJECTIVE: This study aimed to evaluate the performance of diagnostic methods of S. stercoralis infection by taking the composite reference as a "Gold" standard. METHODS: A cross-sectional study was conducted among 844 schoolchildren in Amhara Region, Ethiopia, from April to December 2019. Stool samples were collected and processed with formol-ether concentration technique (FECT), spontaneous tube sedimentation technique (STST), Baermann concentration technique (BCT), agar plate culture (APC) and real-time polymerase chain reaction (RT-PCR). Sensitivity, specificity, positive predictive value, and negative predictive value of each diagnostic method were computed against the composite reference. The agreements of diagnostic methods were evaluated by Kappa value at 95% CI. RESULTS: The composite detection rate of S. stercoralis by the five diagnostic methods was 39.0% (329/844). The detection rate of the parasite from stool samples by FECT, STST, BCT, APC and RT-PCR was 2.0% (17/844), 4.0% (34/844), 10.2% (86/844), 10.9% (92/844) and 28.8% (243/844), respectively. The highest detection rate (37.8%; 319/844) of S. stercoralis was recorded by a combination of BCT, APC, and RT-PCR followed by a combination of STST, BCT, APC and RT-PCR (37.3%; 315/844). The sensitivity of FECT, STST, BCT, APC and RT-PCR against the composite reference was 5.2%, 10.3%, 26.4%, 28.0% and 73.9%, respectively. The diagnostic agreements of RT-PCR, APC, BCT, STST and FECT with the composite reference in detection of S. stercoralis were substantial (0.775), fair (0.321), fair (0.305), slight (0.123), and slight (0.062), respectively. CONCLUSION: RT-PCR detected the highest number of S. stercoralis infections. A combination of RT-PCR with APC and/or BCT better detected S. stercoralis from stool samples compared to other combinations or single diagnostic methods. Therefore, RT-PCR and combination of RT-PCR with APC and/or BCT diagnostic methods should be advocated for detection of S. stercoralis infection.


Assuntos
Strongyloides stercoralis , Estrongiloidíase , Animais , Criança , Estudos Transversais , Etiópia/epidemiologia , Formaldeído , Humanos , Estrongiloidíase/diagnóstico , Estrongiloidíase/parasitologia
9.
Lipids Health Dis ; 20(1): 129, 2021 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-34602073

RESUMO

Mycobacterium tuberculosis (Mtb), the main etiology of tuberculosis (TB), is predominantly an intracellular pathogen that has caused infection, disease and death in humans for centuries. Lipid droplets (LDs) are dynamic intracellular organelles that are found across the evolutionary tree of life. This review is an evaluation of the current state of knowledge regarding Mtb-LD formation and associated Mtb transcriptome directly from sputa.Based on the LD content, Mtb in sputum may be classified into three groups: LD positive, LD negative and LD borderline. However, the clinical and evolutionary importance of each state is not well elaborated. Mounting evidence supports the view that the presence of LD positive Mtb bacilli in sputum is a biomarker of slow growth, low energy state, towards lipid degradation, and drug tolerance. In Mtb, LD may serve as a source of chemical energy, scavenger of toxic compounds, prevent destruction of Mtb through autophagy, delay trafficking of lysosomes towards the phagosome, and contribute to Mtb persistence. It is suggest that LD is a key player in the induction of a spectrum of phenotypic and metabolic states of Mtb in the macrophage, granuloma and extracellular sputum microenvironment. Tuberculosis patients with high proportion of LD positive Mtb in pretreatment sputum was associated with higher rate of poor treatment outcome, indicating that LD may have a clinical application in predicting treatment outcome.The propensity for LD formation among Mtb lineages is largely unknown. The role of LD on Mtb transmission and disease phenotype (pulmonary TB vs extra-pulmonary TB) is not well understood. Thus, further studies are needed to understand the relationships between LD positivity and Mtb lineage, Mtb transmission and clinical types.


Assuntos
Gotículas Lipídicas , Mycobacterium tuberculosis/metabolismo , Transcriptoma , Tuberculose/metabolismo , Interações Hospedeiro-Patógeno , Humanos , Macrófagos , Mycobacterium tuberculosis/genética , Mycobacterium tuberculosis/fisiologia , Escarro/microbiologia , Resultado do Tratamento , Tuberculose/tratamento farmacológico , Tuberculose/transmissão
10.
Parasitol Res ; 120(5): 1821-1835, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33655352

RESUMO

Malaria is a serious and sometimes fatal mosquito-borne disease caused by protozoan parasite of the genus Plasmodium. ABO blood group antigens represent polymorphic traits inherited among individuals and populations. Differences in blood group antigen expression can increase or decrease host susceptibility to many infections. This study was undertaken to determine the prevalence of malaria and its possible association with ABO blood group and hemoglobin level among individuals attending Mekaneeyesus Primary Hospital, Estie District, northwestern Ethiopia. Sociodemographic variables and relevant data were collected from 390 randomly selected individuals through structured questionnaire. Then, thick and thin smears were prepared from finger pricked blood samples, stained, and examined microscopically for detection and identification of malaria parasites. ABO blood group and hemoglobin levels of the same subjects were also determined. The data generated were analyzed for descriptive and logistic regression models. Variables with p value < 0.05 in multivariable logistic regression were considered explanatory variables. The overall prevalence of malaria was 8.5%; Plasmodium vivax (5.6%) was the most predominant, followed by P. falciparum (2.3%), and mixed infection of the two species (0.5%). In our study, being male (AOR = 3.48), under-five years of age (AOR = 72.84), rural residence (AOR = 2.64), and failing to use bed net (AOR =4.65) were significantly associated with the risk of malaria. Most (14.6%) of malaria-positive cases were among individuals with blood group "A," while the least numbers of cases were among subjects with blood group "O." Individuals with blood group "A" were about four times at risk of malaria as compared to individuals with blood group "O" (AOR= 3.74). The prevalence of anemia was 23.1% and significantly associated with malaria (p<0.05). Prevalence of malaria in this study is still higher compared to some of previous reports from Ethiopia. Thus, there is a need to intensify effort in malaria prevention among potentially at risk segments of population, including males, rural residents, and under-five children, and promotion of ITNs use in the community. Supplementation of iron-rich diet for iron-deficient anemia people is needed. Further in-depth investigation is also necessary to clearly establish the role that ABO blood group plays in malaria.


Assuntos
Sistema ABO de Grupos Sanguíneos , Hemoglobinas/metabolismo , Malária/sangue , Malária/epidemiologia , Adolescente , Adulto , Anemia/epidemiologia , Anemia/parasitologia , Criança , Pré-Escolar , Coinfecção , Estudos Transversais , Etiópia/epidemiologia , Feminino , Humanos , Lactente , Modelos Logísticos , Malária Falciparum/sangue , Malária Falciparum/epidemiologia , Malária Vivax/sangue , Malária Vivax/epidemiologia , Masculino , Pessoa de Meia-Idade , Plasmodium falciparum , Plasmodium vivax , Prevalência , População Rural , Adulto Jovem
11.
BMC Infect Dis ; 20(1): 803, 2020 Oct 29.
Artigo em Inglês | MEDLINE | ID: mdl-33121458

RESUMO

BACKGROUND: Soil-transmitted helminths are more prevalent in tropics and sub-tropics including Ethiopia. Despite their high prevalence, direct saline microscopy with its low sensitivity has been used as a diagnostic method in almost all health facilities in Ethiopia. Alternative diagnostic methods which have higher sensitivity are not yet implemented. Therefore, this study aimed to compare and evaluate the performance of diagnostic methods for soil transmitted helminths. METHODS: A cross-sectional study among 520 school children was conducted from October to December, 2019 in Amhara National Regional State. The study participants were selected using systematic random sampling technique. Stool samples were processed via formol ether concentration, Kato-Katz, spontaneous tube sedimentation and agar plate culture techniques. Data was entered into Epi-data version 3.1 and analysis was done using SPSS version 20.0. The sensitivity, specificity, and negative predictive value were calculated against the combined result. Strength of agreement of the diagnostic methods was determined by Kappa value. RESULTS: The Overall prevalence of soil transmitted helminths was 40.8% using combination of methods. The prevalence 24.4, 22.5, and 32.4%, respectively was recorded by using formol ether concentration, Kato-Katz and spontaneous tube sedimentation. The highest prevalence of hookworm (29.2%) was detected by the agar plate culture. The sensitivity and negative predictive value of formol ether concentration were 57.9 and 78.4%, for Kato-Katz thick smear 55.2 and 76.4%, for spontaneous tube sedimentation were 79.2 and 87.5% to soil transmitted helminths detection, respectively. The sensitivity and negative predictive value of agar plate culture to hookworm detection were 86.4 and 93.5%, respectively. CONCLUSION: Spontaneous tube sedimentation shows higher sensitivity in the detection of soil transmitted helminth infections. Agar plate culture method also indicated better performance for hookworm detection than other methods. Therefore, the employment of spontaneous tube sedimentation technique for routine laboratory and agar plate culture for research purposes will significantly aid in accurate diagnosis of parasitic infections.


Assuntos
Ancylostomatoidea/isolamento & purificação , Testes Diagnósticos de Rotina/métodos , Infecções por Uncinaria/diagnóstico , Infecções por Uncinaria/transmissão , Solo/parasitologia , Adolescente , Animais , Criança , Estudos Transversais , Etiópia/epidemiologia , Fezes/parasitologia , Feminino , Formaldeído , Infecções por Uncinaria/epidemiologia , Infecções por Uncinaria/parasitologia , Humanos , Masculino , Microscopia/métodos , Prevalência , Sensibilidade e Especificidade
13.
BMC Infect Dis ; 16(1): 530, 2016 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-27716099

RESUMO

BACKGROUND: Parasitic infections affect tens of millions of pregnant women worldwide, and directly or indirectly lead to a spectrum of adverse maternal and fetal/placental effects. The objective of this study was to assess the prevalence of intestinal parasite infections and associated risk factors among pregnant women attending antenatal care center in Felege Hiwot Referral Hospital, Bahir Dar city, northwest Ethiopia. METHODS: A cross-sectional hospital based study was conducted from November 2013 to January 2014 among 384 pregnant women. Stool samples were examined for the presence of trophozoites, cysts, oocysts, and ova using direct, formal-ether sedimentation, and modified Ziehl-Neelsen techniques. RESULTS: An overall prevalence of 31.5 % intestinal parasite infections was recorded. Eight different species of intestinal parasites were found: two protozoan and six helminth species. The highest prevalence was due to Giardia lamblia (13.3 %) followed by Entamoeba histolytica/dispar (7.8 %), hookworm (5.5 %), Ascaris lumbricoides (2.9 %), Schistosoma mansoni (2.9 %), Strongyloides stercoralis (1.6 %), Taenia spp. (0.8 %), and Hymenolepis nana (0.3 %). CONCLUSIONS: A relatively high prevalence of intestinal parasite infections was observed among pregnant women. Routine stool examination and provision of health education are required for early medical intervention that would affect the pregnant mothers and their foetuses.


Assuntos
Enteropatias Parasitárias/epidemiologia , Complicações Infecciosas na Gravidez/epidemiologia , Adolescente , Adulto , Animais , Ascaris lumbricoides/patogenicidade , Estudos Transversais , Entamoeba histolytica/patogenicidade , Etiópia/epidemiologia , Feminino , Giardia lamblia/patogenicidade , Humanos , Gravidez , Cuidado Pré-Natal , Fatores de Risco , Strongyloides stercoralis/patogenicidade , Adulto Jovem
14.
Virol J ; 12: 204, 2015 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-26626263

RESUMO

BACKGROUND: Viral hepatitis is a life-threatening liver disease that has become important public health issue in developing countries including Ethiopia. This study was undertaken to determine the seroprevalence of HBsAgs and anti-HCV antibodies and what socio-demographic factors are associated with sero-positivity of Hepatitis B Virus (HBV) and Hepatitis C Virus (HCV) infections among pregnant women attending maternity ward of Felege Hiwot Referral Hospital, northwest, Ethiopia. METHODS: Hospital based cross-sectional study was conducted from November 2013 to January 2014. Blood samples were randomly collected from 384 pregnant women. Data on socio-demographic characteristics, obstetric and potential risk factors were collected using semi-structured questionnaire. Chromatographic kits were used to detect the presence of HBsAg and antibodies against HCV in serum samples of the studied subjects. Chi-square test was used for assessing the association between socio-demographic variables and HBV and HCV status. Logistic regression analysis was done to determine the strength of association between risk factors and HBV or HCV infection. P-values less than 0.05 were considered as significant. RESULTS: Seroprevalnce of hepatitis B and C virus infections were found to be 4.4 and 0.26 %, respectively. None of the pregnant women were co-infected by these two viruses. Amongst the potential risk factors, previous history of dental procedure (AOR = 4.104, CI = 1.276-13.201, P = 0.018), house hold contact (AOR = 5.475, CI = 1.472-20.368, P = 0.011), multiple sexual exposure (AOR = 5.041, CI = 1.580-16.076, P = 0.006), and delivery at traditional birth attendants (AOR = 4.100, CI = 0.195-86.129, P = 0.024) were significantly associated with and important predictors of hepatitis B infection. CONCLUSIONS: This study found an intermediate endemicity (4.4 %) of HBV infection in pregnant women whereas seroprevalence of anti-HCV antibody was very small, but this needs to be confirmed by other similar studies with larger sample size. Thus, scaling up of the screening of pregnant women for HBV and HCV infections and provision of health education about the risk factors, the mode of transmissions and prevention is recommended.


Assuntos
Antígenos de Superfície da Hepatite B/sangue , Hepatite B/epidemiologia , Anticorpos Anti-Hepatite C/sangue , Hepatite C/epidemiologia , Complicações Infecciosas na Gravidez/epidemiologia , Adolescente , Adulto , Estudos Transversais , Demografia , Etiópia/epidemiologia , Feminino , Hospitais , Humanos , Gravidez , Fatores de Risco , Estudos Soroepidemiológicos , Fatores Socioeconômicos , Adulto Jovem
15.
J Trop Med ; 2024: 5531687, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39040853

RESUMO

Background: Schistosomiasis is a common public health problem throughout the world and Schistosoma mansoni is the most prevalent species in Africa. Most endemic countries use the Kato-Katz (KK) stool smear examination for diagnosis, mapping, and monitoring of intervention programs. However, its poor sensitivity calls for an urgency to evaluate and use more accurate diagnostic tools, of which detection of circulating cathodic antigen (CCA) in urine seems promising. Methods: Studies published until May 2022 were searched from PubMed, Google Scholar, and grey literature for systematic review and meta-analysis following the PRISMA guideline. Eligible studies were selected based on preset inclusion and exclusion criteria. Quality of included studies was assessed using the QUADAS-2 tool. Heterogeneity between studies was assessed using Cochrane Q test and I 2 test statistics. Data were analyzed using Review Manager 5.4.1 and Meta-DiSc 1.4 software programs. Results: Thirty-seven studies published in 29 papers and enrolling 21159 study participants were included for analysis. Overall analysis of Point-of-Care Circulating Cathodic Antigen (POC-CCA) test against KK reference standard revealed a pooled sensitivity and specificity of 0.86 (95% CI: 0.85-0.87) and 0.66 (95% CI: 0.65-0.67), respectively. Subgroup analysis among 24 studies comparing single POC-CCA with test single KK revealed a high sensitivity (0.88) but low specificity (0.66). Based on findings of 24 studies, the area under the curve (AUC) for the systematic receiver operating characteristic (SROC) curve was 0.7805, indicating that the POC-CCA test effectively separates those with the disease from those who do not have it. Higher sensitivity estimates of 0.93 and 0.90 were reported when comparisons were made between test results of 2 urine and 1 stool samples, and 3 urine and 3 stool samples, respectively. Single POC-CCA test resulted in a pooled sensitivity estimate of 0.81 (95% CI: 0.78-0.84) as evaluated by the polymerase chain reaction (PCR) reference test. Conclusions: The POC-CCA test has higher sensitivity than KK and may serve as a routine diagnostic alternative for disease diagnosis, mapping, and monitoring of interventions. However, its accuracy should further be evaluated at different transmission settings and infection intensity.

16.
Int Health ; 16(1): 14-22, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-37026449

RESUMO

Pre-eclampsia (PE) is a pregnancy-related disorder characterized by hypertension and proteinuria occurring after 20 weeks of gestation. Several studies have been performed to determine the serum magnesium (Mg) level in PE, but most report inconclusive results. Consequently, this study was designed to resolve this controversy among African women. PubMed, Hinari, Google Scholar and African Journals Online electronic databases were searched for studies published in English. The qualities of included articles were appraised using the Newcastle-Ottawa quality assessment tool. Stata 14 software was utilized for analysis and serum Mg levels in cases and normotensive controls were compared through mean and standardized mean difference (SMD) at the 95% confidence interval (CI). In this review, we found that the mean serum Mg level was significantly reduced in cases (0.910±0.762 mmol/L) vs controls (1.167±1.060 mmol/L). The pooled SMD of serum Mg was significantly lower in cases (-1.20 [95% CI -1.64 to -0.75]). Therefore, since serum Mg is reduced in cases vs controls, we propose that Mg is involved in the pathophysiology of PE. Nevertheless, to know the exact mechanisms of Mg in PE development will require large-scale prospective studies.


Assuntos
Pré-Eclâmpsia , Complicações na Gravidez , Feminino , Gravidez , Humanos , Gestantes , Magnésio , Estudos Prospectivos
17.
Braz J Microbiol ; 55(1): 51-64, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38040991

RESUMO

BACKGROUND: Helicobacter pylori is the main cause of chronic gastritis, peptic ulcer, lymphoma, and gastric cancer in humans. The prevalence and factors associated with H. pylori infection are varied across countries. Thus, a comprehensive review has not been done on prevalence and associated factors in East Africa. Therefore, this systematic review and meta-analysis aimed to estimate the pooled prevalence and identify factors associated with H. pylori infection in East Africa. METHODS: Articles written in English language were retrieved from PubMed, Scopus, and Science Direct. Relevant articles were selected and screened using Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. Publication bias was assessed qualitatively and qualitatively using funnel plot symmetry and Egger's test, respectively. Heterogeneity was assessed using the I2 measure. Data were analyzed using Stata software, version 14, and the "metan" command. RESULTS: A total of 231 articles were retrieved from nineteen countries in East Africa. Of these, 70 articles were eligible for the review. The pooled prevalence of H. pylori in East Africa was 50.98% (95% CI: 45.05-56.90). The prevalence of H. pylori infection ranged from 7.7 to 94.5% in East African countries. The highest pooled prevalence was from Sudan (61.3%, 95% CI: 52.6-69.9), and the lowest prevalence was reported from Uganda (40.7%, 95% CI: 33-48.3). Persons with no formal education (OR: 2.03; 95% CI: 1.22-2.83), lack of hand washing habit after toilet (OR: 2.24; 95% CI: 1.45-3.02), having a history of dyspepsia (OR: 2.25; 95% CI: 1.31-3.18), living in rural areas (OR = 1.80; 95% CI: 0.38-3.23), and having unclean water source (OR = 1.5; 95% CI:0.45-3.45) were all associated with higher risk for H. pylori infection. CONCLUSION: More than half of the populations of East African countries were positive for H. pylori infection. Rural residence, source of water, and alcohol consumption were significantly associated with H. pylori infection. Therefore, healthcare workers could provide health education on the aforementioned risk factors, and the government and other stakeholders could improve the source of drinking water in East Africa.


Assuntos
Infecções por Helicobacter , Helicobacter pylori , Humanos , Infecções por Helicobacter/epidemiologia , Infecções por Helicobacter/microbiologia , Prevalência , África Oriental/epidemiologia , Fatores de Risco , Água
18.
PLoS One ; 19(3): e0298332, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38437215

RESUMO

BACKGROUND: Schistosoma mansoni and S. haematobium infections have been public health problems in Ethiopia, S. mansoni being more prevalent. To reduce the burden of schistosomiasis, a national school-based prazequantel (PZQ) mass drug administration (MDA) program has been implemented since November 2015. Nevertheless, S. mansoni infection is still a major public health problem throughout the country. Reduced efficacy of PZQ is reported by a few studies in Ethiopia, but adequate data in different geographical settings is lacking. Hence, this study aimed to assess the efficacy and safety of PZQ for the treatment of S. mansoni infection across different transmission settings in Amhara Regional State, northwest Ethiopia. METHODS: A school-based single-arm prospective cohort study was conducted from February to June, 2023 among 130 S. mansoni-infected school-aged children (SAC). Forty-two, 37, and 51 S. mansoni-infected SAC were recruited from purposely selected schools located in low, moderate, and high transmission districts, respectively. School-aged children who were tested positive both by Kato Katz (KK) using stool samples and by the point of care circulating cathodic antigen (POC-CCA) test using urine samples at baseline were treated with a standard dose of PZQ and followed for 21 days for the occurrence of adverse events. After three weeks post-treatment, stool and urine samples were re-tested using KK and POC-CCA. Then the cure rate (CR), egg reduction rate (ERR), and treatment-associated adverse events were determined. The data were analyzed using SPSS version 21. RESULTS: Out of the total 130 study participants, 110 completed the follow-up. The CR and ERR of PZQ treatment were 88.2% (95%CI: 82.7-93.6) and 93.5% (95%CI: 85.4-98.5), respectively, by KK. The CR of PZQ based on the POC-CCA test was 70.9% (95%CI: 62.7-79.1) and 75.5% (95%CI: 67.3-83.6) depending on whether the interpretation of 'trace' results was made as positive or negative, respectively. After treatment on the 21st day, 78 and 83 participants tested negative both by KK and POC-CCA, with respective interpretations of 'trace' POC-CCA test results as positive or negative. The CR in low, moderate and high transmission settings was 91.7%, 91.2% and 82.5%, respectively (p = 0.377) when evaluated by KK. The CR among SAC with a light infection at baseline (95.7%) by KK was higher than that of moderate (81.5%) and heavy (64.3%) infections (χ2 = 12.53, p = 0.002). Twenty-six (23.6%) participants manifested at least one adverse event. Eleven (10.0%), eight (7.3%), six (5.5%), and three (2.7%) participants complained about abdominal pain, nausea, headache, and anorexia, respectively. All adverse events were mild, needing no intervention. Occurrence of adverse events was slightly higher in high endemic areas (32.5%) than moderate (23.5%) and low endemic areas (p = 0.279). CONCLUSIONS: A single dose of 40 mg/kg PZQ was efficacious and safe for the treatment of S. mansoni infection when it was evaluated by the KK test, but a lower efficacy was recorded when it was evaluated by the POC-CCA test. However, the POC-CCA test's specificity, clearance time of CCA from urine after treatment, and interpretation of weakly reactive (trace) test results need further research.


Assuntos
Esquistossomose mansoni , Criança , Animais , Humanos , Esquistossomose mansoni/tratamento farmacológico , Etiópia , Estudos Prospectivos , Saúde Pública , Schistosoma mansoni
19.
Trop Med Health ; 52(1): 23, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38462634

RESUMO

BACKGROUND: Schistosoma mansoni causes intestinal schistosomiasis (SCH) in all regions of Ethiopia. Despite many years of mass treatment, the prevalence has not dropped significantly. The reduction of SCH transmission demands the integration of deworming with safe water, sanitation, and hygiene (WASH) activities. Adequate knowledge and a positive attitude towards SCH are critical to practicing those interventions. However, data on the knowledge, attitude, and practice (KAP) level in school and community settings is limited in Ethiopia. METHODS: School and community-based cross-sectional studies were conducted from February to June 2023 among 634 school-aged children (SAC) and 558 adults. A pre-tested questionnaire was used to collect socio-demographic and KAP data. Records were entered and analyzed using SPSS software version 21. Correct responses for each of the KAP questions were scored as one, while incorrect or 'I don't know' responses were scored as zero. Good knowledge, a positive attitude and good practice were declared if percentage scores were ≥ 80%, ≥ 90% and ≥ 75%, respectively. RESULTS: Only 229 (19.2%) respondents, comprising 91 (14.4%) SAC and 138 (24.7%) adults, had ever heard of SCH. Adults, males, and urban residents had higher awareness level compared to their respective counterparts (p < 0.05). Only 28.4% of aware respondents knew that swimming or bathing in freshwater is a risk factor for schistosoma infection; 10.9% knew the etiologic agent; and 14.4% mentioned at least one sign and symptom associated with SCH. The majority (97.8%) of the respondents were willing to take therapeutic drugs, but only 37.6% believed that SCH is a serious disease. Regarding risky practices, 89.5% practiced swimming or bathing in freshwater, and 25.3% had no access to piped water. Among the aware respondents, only 18 (7.9%) had good knowledge, while 30 (13.1%) had a positive attitude towards SCH. Ninety-nine (43.2%) respondents had good Schistosoma infection prevention practices. CONCLUSIONS: The knowledge, attitude, and preventive practice level towards schistosomiasis are low in the study area. Therefore, strengthening school and community-based health education, along with mass drug administration (MDA), WASH, and a vector control program, is recommended for preventing SCH.

20.
Sci Rep ; 14(1): 7976, 2024 04 04.
Artigo em Inglês | MEDLINE | ID: mdl-38575600

RESUMO

Cervical cancer is a significant public health concern in Ethiopia. It is mainly caused by persistent infection with the human papillomaviruses. The aim of this study was to assess the relationship between carcinogenic risk of probable, possible and low risk HPV infection and those of cervical intraepithelial neoplasia (CIN) and cervical cancer. A cross sectional study nested from prospective cohort study was conducted in Bahir Dar, northwest Ethiopia. Statistical analyses were performed using SPSSversion 26.0. HPV-16 was associated with a relatively higher risk of CIN II+, (AOR = 15.42; 95% CI 6.81-34.91). In addition, HPV-52, -18, -53 and -58, were significantly associated with an increased risk of CIN II+, (AOR = 7.38 (1.73-31.54), 5.42 (1.61-18.31), 4.08 (1.53-10.87), and 3.17 (1.00-10.03)), respectively. The current study shows high rate of HPV with predominance of HPV-16, -53, -58, -18, -35, and -52. The quadrivalent and nonavalent vaccine had only covered 27.1% and 45% of the circulating HPV genotypes. Ethiopia may need to consider introduction of nonavalent vaccine into the national public health strategy. Polyvalent vaccine which includes the genotypes not covered by existing approved vaccines should be considered.


Assuntos
Infecções por Papillomavirus , Vacinas contra Papillomavirus , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle , Papillomavirus Humano , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Estudos Transversais , Estudos Prospectivos , Papillomaviridae/genética , Papillomavirus Humano 16 , Genótipo , Vacinas Combinadas
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