12 results on '"Tadesse, Zelalem"'
Search Results
2. A longitudinal study of Middle East respiratory syndrome coronavirus (MERS-CoV) in dromedary camels
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Abdelazim, Mohamed, Abdelkader, Rehab, Ali, Abdelhakim, Shahein, Momtaz A., Tadesse, Zelalem, Saad, Ahmed, Mansour, Amal, Ali, Samah F., Atea, Mohamed, Gardner, Emma, VonDobschuetz, Sophie, Morzaria, Subhash, Makonnen, Yilma, Lubroth, Juan, Sumption, Keith, ElMasry, Ihab, Zakaria, Tarek, Eid, Samah, Hatab, Eman Abo, Hagag, Naglaa M., Yousef, Hend M. Y., Emara, Mervate, Abdelwahed, Dina A., Abdelmegeed, Hala K., Hamdy, Mervat E., Mansour, Othman N.O., and Guitian, Javier
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- 2023
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3. Internet utilization for health information and its associated factors among undergraduate university students in Ethiopia: A cross-sectional study
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Derseh, Mintesnot Hawaze, Gashu, Kassahun Dessie, Meshesha, Tekeba, Ashenafi, Baye, Wolde, Abebe Getachew, Umuro, Desta Samuel, Melaku, Mequannent Sharew, Wubante, Sisay Maru, Tadesse, Zelalem, Chernet, Nahom, and Tegegne, Masresha Derese
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- 2022
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4. Detection of distinct MERS-Coronavirus strains in dromedary camels from Kenya, 2017
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Kiambi, Stella, Corman, Victor M., Sitawa, Rina, Githinji, Jane, Ngoci, James, Ozomata, Abdullahi S., Gardner, Emma, von Dobschuetz, Sophie, Morzaria, Subhash, Kimutai, Joshua, Schroeder, Simon, Njagi, Obadiah, Simpkin, Piers, Rugalema, Gabriel, Tadesse, Zelalem, Lubroth, Juan, Makonnen, Yilma, Drosten, Christian, Müller, Marcel A., and Fasina, Folorunso O.
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- 2018
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5. Spatial-Temporal Dynamics in Potable Water Quality: A Case Study of Mizan-Aman Town, Southwest, Ethiopia.
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Tadesse, Zelalem, Dananto, Mihret, Kassa, Henok, and Ingale, Lalit
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WATER quality , *DRINKING water , *DRINKING water standards , *WATER quality management , *BIOCHEMICAL oxygen demand , *COLIFORMS , *WATER quality monitoring - Abstract
Surface water is one of the sources of global potable water. However, the quality of surface water has been degrading due to an increase in human activities. Hence, the present study was conducted to evaluate the spatial and temporal variability in drinking water physico-chemical and bacteriological characteristics from the different sources in Mizan-Aman, Ethiopia. The physico-chemical characteristics of water at the Kosokol site were found to be statistically different (p < 0.05) from the other sites (Gacheb, Tsit, Reservoir 1, and Reservoir 2 sites). The dry and wet season temperature (27.1 and 23.8°C), turbidity (37.4 and 54.8 NTU), pH (7.6 and 8.1), biological oxygen demand (18.1 and 20.7 mg/l), phosphate (2.4 and 3.5 mg/l), and ammonia (2.2 and 4.8 mg/l) of the water were beyond the acceptable limit set for drinking water by both Ethiopian standards (temperature: <15°C; turbidity: 7 NTU; pH: 6.5–8.5; BOD: 10 mg/l; phosphate: 0.02 mg/l; and ammonia: 1.5 mg/l) and the WHO standards (temperature: <15°C; turbidity: 5 NT U; pH: 6.5–8.5; BOD: 5 mg/l; phosphate: 0.01 mg/l; and ammonia: 1.5 mg/l). The total coliform (366.5 and 494.3 CFU/100 ml) and fecal coliform (209.5 and 278.3 CFU/100 ml) contents of the water in the dry and wet seasons are beyond the acceptable limits for drinking water by Ethiopian standards (total and fecal coliform: 0) and the WHO standards (total and fecal coliform: 0). The physico-chemical and bacteriological characteristics of the water in the wet season were found significantly higher than those (p < 0.05) in the dry season. In general, the water quality changes on a spatial and temporal basis in the study area. Thus, it is important to encourage water quality management works at the upper source sites of the catchment. Furthermore, the city water authority should reinforce safeguarding treatment processes, continuous monitoring of water quality as well as risk assessment and management practices. [ABSTRACT FROM AUTHOR]
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- 2023
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6. Neutrophil-to-Lymphocyte Ratio and Cut-off Values as Predictor of Severity and Mortality in COVID-19 Patients in Millennium COVID-19 Care Center, Addis Ababa, Ethiopia.
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Tadesse, Zelalem, Bayissa, Abdi Bekele, Diriba, Tolesa, Chernet, Nahom, Tsegaye, Seniat, and Tsega, Molla
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COVID-19 ,NEUTROPHIL lymphocyte ratio ,RECEIVER operating characteristic curves ,LOGISTIC regression analysis ,COVID-19 treatment - Abstract
Background: Early identification of patients at high risk of poor clinical outcomes is the key to success in saving the lives of patients with coronavirus disease 2019 (COVID-19). Neutrophil to Lymphocyte Ratio (NLR) is an easily available and cheap surrogate inflammatory marker, its baseline NLR role in African COVID-19 patients remains to be investigated. The objective of the study aimed to evaluate the role of NLR as a predictor of severity and mortality of COVID-19 patients admitted at the Millennium COVID 19 care center in Addis Ababa, Ethiopia. Methods: A cross-sectional study was conducted on patients with COVID-19 admitted to the Millennium COVID-19 care center from August 1 to October 30, 2021. Receiver Operating Characteristic curve analysis was used to calculate the area under the curve to assess the predictive capacity of NLR on mortality and severity. Multivariable logistic regression analysis was done to identify the association between independent variables and disease outcomes with an Adjusted Odds Ratio (AOR), P-value, and 95% CI for AOR were used for testing significance. Results: The NLR of 9.47 was identified as the optimal cut-off value for predicting mortality with a sensitivity of 88.7% and a specificity of 95.4% (Area Under the Curve (AUC):0.95, 95% CI 0.92– 98; P< 0.001) and the NLR of 5.86 was an effective threshold value in predicting the severity of disease with a sensitivity of 92.2% and a specificity of 75% (AUC:0.85, 95% CI 0.800– 0.905; P< 0.001). In multivariable logistic regression analysis, after adjusting for confounding factors, NLR of more than 9.47 and 5.86 was significantly associated with all‐cause of in‐hospital mortality (AOR=4.73, 95% CI, 1.19– 33.68; P< 0.02), and severity of disease (AOR=12.98, 95% CI 3.85– 43.80; P=0.001), respectively. Conclusion: NLR greater than 9.47 and 5.86 effectively predict mortality and severity of the disease, respectively. It provides an objective input for early decision-making in inpatient management especially in resources limited area. [ABSTRACT FROM AUTHOR]
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- 2022
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7. Optimum Nitrogen and Phosphors Fertilizer Rates for Upland Rice Production in North Western Ethiopia
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Tadesse, Tilahun, Tadesse, Zelalem, Asega, Habtamu, and Abaychew, Desta
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The national average yield of rice is about 2.8t ha-1 which is lower compared to the world average productivity of 4.6 tones ha-1 mainly constrained by soil nutrient deficiencies. An experiment on nitrogen and phosphorous fertilizer rates was conducted on upland rice on Nerica-4 variety in Fogera and Libokemkem districts in three consecutive main cropping seasons of the years 2015, 2016 and 2017 to determine the appropriate rates for production. The treatments were comprised of factorial combinations of four nitrogen rates (0, 46, 92,138 N kg ha-1) and three phosphorous rates (0, 46, 92 P2O5 kg ha-1), and laid out in randomized complete block design (RBD) with three replications. Data were collected on plant height, panicle length, and number of total tillersm-2, number of fertile panicles m-2, thousand seeds weight, grain yield, straw yield and harvest index. All collected data were subjected to analysis of variance. Economic analysis was also carried out by following CIMMYT (1988) procedures. The results of the experiment indicated that the main effect of nitrogen application significantly affected plant height, panicle length, total tillers, number of fertile panicles, grain yield, and straw yield, while that of phosphorous significantly affected total tillers, number of fertile panicles and grain yield. The interaction of nitrogen and phosphorous was significantly affecting total tillers, number of fertile panicles, grain yield and straw yield. The highest grain yield (5.5 t ha-1) was obtained from the interaction of 138 kg ha-1N with 46 kg ha-1 P2O5. The economic analysis has further revealed that the combined application of 138 kg ha-1N and 46 kg ha-1 P2O5 which gave the highest net return of Birr 68,307.5 ha-1was the most profitable treatment to upland rice production. Thus it is concluded that application of nitrogen and phosphorous fertilizers at the rates of 138-46 N-P2O5 kg ha-1 is the best to be recommended for rainfed upland rice production in the study area and other similar agro-ecologies., Journal of Agriculture and Environmental Sciences, Vol 5 No 1 (2020)
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- 2020
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8. Determination of Optimum Seed Rate and Row Spacing of Upland Rice in Amhara region, Ethiopia
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Tadesse*, Tilahun, Tadesse, Zelalem, Assega, Habtamu, and Abeychew, Desta
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Farmers in the major upland rice growing areas of Ethiopia are advised to use blanket seed rates as there are no appropriate seed rate recommendations developed. Seed rate and row spacing experiment was conducted on rainfed upland rice production at Fogera and Libokemkem areas, Amhara Region, Ethiopia. Randomized complete block design in factorial arrangements was deployed. The treatments were seven seed rates (40, 60, 80, 100, 120, 140, and 160 kg ha-1) and 4 row spacings (15, 20, 25, 30 cm). The commonly grown NERICA4 rice variety was used. Data were collected on major agronomic parameters and subjected to analysis of variance. Economic analysis was also carried out. The results of the experiment indicated that the main effect of seed rate was significantly affecting plant height, panicle length, total tillers/m, effective tillers/m, filled spiklets/panicle, grain yield and straw yields. On the other hand, the main effect of row spacing was significantly affecting panicle length, total tillers/m, effective tillers/m, filled spiklets/panicle. With respect to the interaction effect of seed rate and row spacing, significant effects were observed on total tillers/m, effective tillers/m, thousand seeds weight and straw yields. The highest and statistically significant grain yield (3.06 t ha-1) was obtained from the seed rate of 120 kg ha-1. The combined use of 120 kg ha-1seed rate and 20 cm row spacing is the most profitable treatment. It is thus concluded that combined use of 120 kg ha-1 seed rate and 20 cm row spacing is the best recommended for upland rice production in Fogera, Libokemkem and other similar upland rice production areas., Abyssinia Journal of Science and Technology, Vol. 4 No. 2 (2019)
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- 2019
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9. Different mutation patterns of Plasmodium falciparum among patients in Jimma University Hospital, Ethiopia
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Hölscher Michael, Gürkov Robert, Fekadu Sintayehu, Tadesse Zelalem, Berens-Riha Nicole, Eshetu Teferi, Löscher Thomas, and Miranda Isabel
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Arctic medicine. Tropical medicine ,RC955-962 ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background The emergence of drug resistance is a major problem in malaria control. Combination of molecular genotyping and characterization of mutations or single nucleotide polymorphisms (SNPs) correlated with drug resistance can provide information for subsequent surveillance of existing and developing drug resistance patterns. The introduction of artemether/lumefantrine (AL) as first-line treatment, never used before in Ethiopia, allowed the collection of baseline data of molecular polymorphisms before a selection due to AL could occur. Method 97 patients with uncomplicated falciparum malaria were recruited from April to June 2006 and treated with either AL, quinine (Q) or atovaquone/proguanil (AP) in Jimma University Hospital, Ethiopia. Mutations or SNPs associated with resistance to these drugs were analysed by RFLP (pfdhfr, pfmdr1) and sequencing of the target genes (pfcytb, pfserca ). Results SNPs previously reported to be associated with resistance to the study drugs were identified in recrudescent and treatment sensitive isolates. A total of seven recrudescences were obtained. The pfmdr1 N86Y mutation was found in 84.5% of isolates. The triple mutation 51I,59R,108N of the pfdhfr gene occured in high frequency (83.3%) but no pfcytb mutation was detected. Sequencing showed a variety of previously described and new mutations in the pfserca gene. Conclusion The prevalence of mutations was in accordance with the expected patterns considering recent drug regimens. The broad introduction of AL and the cessation of former drug regimens might probably change the current distribution of polymorphisms, possibly leading to decreased sensitivity to AL in future. Continuous surveillance of molecular patterns in this region is, therefore, recommended.
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- 2010
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10. Teff [Eragrostis tef (Zucc.)] rainfed yield response to planting method, seeding density, and row spacing.
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Mihretie, Fekremariam, Tsunekawa, Atsushi, Bitew, Yayeh, Chakelie, Gobezie, Derebe, Bitwoded, Getahun, Wudu, Beshir, Omer, Tadesse, Zelalem, and Asfaw, Mitiku
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Teff [Eragrostis tef (Zucc.)] grain yield is low due to lack of improved management practices. We evaluated grain yield and cost of planting methods (broadcast, row, and transplanting), row spacing (10, 15, 20, 25, and 30 cm), and seeding densities (2.5, 5.0, 7.5, 10, 15, 20, and 25 kg ha−1) for teff in the 2012 and 2013 cropping seasons at the Adet Agricultural Research Center farm in northwest Ethiopia. Transplanting (1,675 kg ha−1) resulted in 34 and 75% greater grain yield (P <.05) than row (1,247 kg ha−1) and broadcast planting (958 kg ha−1), respectively. Row planting gave greater (30%) grain yield than broadcasting. Seeding density did not significantly influence grain yield in broadcast or row planting. Row spacing significantly influenced grain yield under row planting but did not significantly influence grain yield under transplanting. Regression analysis indicated grain yield increased as seeding density increased from 2.5 to 10 kg ha−1, then declined at greater seeding densities for both broadcast and row planting. Grain yield declined sharply as row spacing increased from 15 to 30 cm for both transplanting and row planting. Partial‐budget analysis showed that although teff transplanting gave the greatest grain yield, it was not economical due to low straw (biomass) yield and high cost of labor. Row planting at a spacing from 10 to 15 cm at 15 kg seed ha−1 was the most economically effective teff production method, with a net benefit of $1,640 ha−1. [ABSTRACT FROM AUTHOR]
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- 2021
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11. Different mutation patterns of Plasmodium falciparum among patients in Jimma University Hospital, Ethiopia.
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Eshetu, Teferi, Berens-Riha, Nicole, Fekadu, Sintayehu, Tadesse, Zelalem, Gürkov, Robert, Hölscher, Michael, Löscher, Thomas, and Miranda, Isabel Barreto
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GENETIC polymorphisms ,PLASMODIUM falciparum ,UNIVERSITY hospitals ,DRUG resistance ,QUININE - Abstract
Background: The emergence of drug resistance is a major problem in malaria control. Combination of molecular genotyping and characterization of mutations or single nucleotide polymorphisms (SNPs) correlated with drug resistance can provide information for subsequent surveillance of existing and developing drug resistance patterns. The introduction of artemether/lumefantrine (AL) as first-line treatment, never used before in Ethiopia, allowed the collection of baseline data of molecular polymorphisms before a selection due to AL could occur. Method: 97 patients with uncomplicated falciparum malaria were recruited from April to June 2006 and treated with either AL, quinine (Q) or atovaquone/proguanil (AP) in Jimma University Hospital, Ethiopia. Mutations or SNPs associated with resistance to these drugs were analysed by RFLP (pfdhfr, pfmdr1) and sequencing of the target genes (pfcytb, pfserca ). Results: SNPs previously reported to be associated with resistance to the study drugs were identified in recrudescent and treatment sensitive isolates. A total of seven recrudescences were obtained. The pfmdr1 N86Y mutation was found in 84.5% of isolates. The triple mutation 51I,59R,108N of the pfdhfr gene occured in high frequency (83.3%) but no pfcytb mutation was detected. Sequencing showed a variety of previously described and new mutations in the pfserca gene. Conclusion: The prevalence of mutations was in accordance with the expected patterns considering recent drug regimens. The broad introduction of AL and the cessation of former drug regimens might probably change the current distribution of polymorphisms, possibly leading to decreased sensitivity to AL in future. Continuous surveillance of molecular patterns in this region is, therefore, recommended. [ABSTRACT FROM AUTHOR]
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- 2010
- Full Text
- View/download PDF
12. Ethiopian primary healthcare clinical guidelines 5 years on-processes and lessons learnt from scaling up a primary healthcare initiative.
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Kibret AG, Belete WM, Hanlon C, Ataro I, Tsegaye K, Tadesse Z, Feleke M, Abdella M, Wale M, Befekadu K, Bekele A, Georgeu-Pepper D, Ras CJ, Fairall LR, and Cornick RV
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- Humans, Ethiopia, Practice Guidelines as Topic, Primary Health Care standards
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Many effective health system innovations fail to reach those who need them most, falling short of the goal of universal health coverage. In the 5 years since the Federal Ministry of Health in Ethiopia localised the Practical Approach to Care Kit (PACK) programme to support primary care reforms, PACK has been scaled-up to over 90% of the country's primary care health centres. Known as the Ethiopian Primary Healthcare Clinical Guideline (EPHCG), the programme comprises a comprehensive, policy-aligned clinical decision support tool (EPHCG guide) and an implementation strategy to embed comprehensive, integrated care into every primary care consultation for individuals over 5 years of age, while addressing barriers to streamlined primary healthcare delivery. We describe the components of the EPHCG programme and the work done to establish it in Ethiopia. Yamey's framework for successful scale-up is used to examine the programme and health system factors that enabled its scale-up within a 5-year period. These included high-level ministry leadership and support, a cascade model of implementation embedded in all levels of the health system, regular EPHCG guide and training material updates and strategies to generate stakeholder buy-in from managers, health workers, patients and communities. Challenges, including stakeholder resistance, training fidelity and quality and procurement of medicines and diagnostic tests, are described, along with efforts to resolve them. Insights and learnings will be of interest to those implementing PACK programmes elsewhere, and managers and researchers responsible for design and delivery of health systems strengthening innovations at scale in low-income and middle-income countries., Competing Interests: Competing interests: RVC, LRF, DG-P and C-JR developed the PACK programme and mentored its localisation and implementation in Ethiopia. CH and AB led evaluations of EPHCG implementation. The rest of the co-authors led the EPHCG implementation., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY. Published by BMJ.)
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- 2024
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