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Dr Abraham Aseffa

TitleSenior Scientist
InstitutionArmauer Hansen Research Institute
AddressAddis Ababa
Ethiopia
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    Dr Abraham Aseffa is Senior Scientist at the Armauer Hansen Research Institute (AHRI) in Ethiopia. He graduated in Medicine from Addis Ababa University (1984) and studied Microbiology at the University of Leipzig, Germany (Dr. med, 1990). He taught Microbiology at Gondar College of Medical Sciences (Ethiopia) until 1998 when he joined the WHO Immunology and Research Training Centre at the University of Lausanne, Switzerland for postdoctoral research. He moved to AHRI in Addis Ababa as senior scientist in 2001. Dr Aseffa has conducted several studies on infectious disease microbiology, immunology and epidemiology in collaboration with national and international partners. He has keen interest in postgraduate student training. He has (co)supervised over 25 PhD and 50 MSc postgraduate students in biomedical sciences. He works closely with the Ministry of Health in Ethiopia on capacity building for clinical and operational research and on translation of research findings into practice. Dr Aseffa has also been active on strengthening regional partnership particularly in clinical trial capacity building and health research ethics. He has served in several WHO/TDR, WHO and EDCTP advisory bodies. He is a member of the Ethiopian (EAS) and the Third World Academies of Sciences (TWAS). He served as Director of AHRI between 2010-2016.


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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Tió-Coma M, van Hooij A, Bobosha K, van der Ploeg-van Schip JJ, Banu S, Khadge S, Thapa P, Kunwar CB, Goulart IM, Bekele Y, Hagge DA, Moraes MO, Teles RMB, Pinheiro RO, van Zwet EW, Goeman JJ, Aseffa A, Haks MC, Ottenhoff THM, Modlin RL, Geluk A. Whole blood RNA signatures in leprosy patients identify reversal reactions before clinical onset: a prospective, multicenter study. Sci Rep. 2019 Nov 29; 9(1):17931. PMID: 31784594.
      View in: PubMed
    2. Toy T, Pak GD, Duc TP, Campbell JI, El Tayeb MA, Von Kalckreuth V, Im J, Panzner U, Cruz Espinoza LM, Eibach D, Dekker DM, Park SE, Jeon HJ, Konings F, Mogeni OD, Cosmas L, Bjerregaard-Andersen M, Gasmelseed N, Hertz JT, Jaeger A, Krumkamp R, Ley B, Thriemer K, Kabore LP, Niang A, Raminosoa TM, Sampo E, Sarpong N, Soura A, Owusu-Dabo E, Teferi M, Yeshitela B, Poppert S, May J, Kim JH, Chon Y, Park JK, Aseffa A, Breiman RF, Schütt-Gerowitt H, Aaby P, Adu-Sarkodie Y, Crump JA, Rakotozandrindrainy R, Meyer CG, Sow AG, Clemens JD, Wierzba TF, Baker S, Marks F. Multicountry Distribution and Characterization of Extended-spectrum ß-Lactamase-associated Gram-negative Bacteria From Bloodstream Infections in Sub-Saharan Africa. Clin Infect Dis. 2019 Oct 30; 69(Supplement_6):S449-S458. PMID: 31665776.
      View in: PubMed
    3. Teferi M, Desta M, Yeshitela B, Beyene T, Cruz Espinoza LM, Im J, Jeon HJ, Kim JH, Konings F, Kwon SY, Pak GD, Park JK, Park SE, Yedenekachew M, Kim J, Baker S, Sir WS, Marks F, Aseffa A, Panzner U. Acute Febrile Illness Among Children in Butajira, South-Central Ethiopia During the Typhoid Fever Surveillance in Africa Program. Clin Infect Dis. 2019 Oct 30; 69(Supplement_6):S483-S491. PMID: 31665778.
      View in: PubMed
    4. Auburn S, Getachew S, Pearson RD, Amato R, Miotto O, Trimarsanto H, Zhu SJ, Rumaseb A, Marfurt J, Noviyanti R, Grigg MJ, Barber B, William T, Goncalves SM, Drury E, Sriprawat K, Anstey NM, Nosten F, Petros B, Aseffa A, McVean G, Kwiatkowski DP, Price RN. Genomic Analysis of Plasmodium vivax in Southern Ethiopia Reveals Selective Pressures in Multiple Parasite Mechanisms. J Infect Dis. 2019 Oct 22; 220(11):1738-1749. PMID: 30668735.
      View in: PubMed
    5. Merid Y, Mulate YW, Hailu M, Hailu T, Habtamu G, Abebe M, Datiko DG, Aseffa A. Population-based screening for pulmonary tuberculosis utilizing community health workers in Ethiopia. Int J Infect Dis. 2019 Dec; 89:122-127. PMID: 31639521.
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    6. Alemayehu C, Mitchell G, Nikles J, Aseffa A, Clavarino A. Acceptability and barriers to implementation of N-of-1 tests in Ethiopia - a qualitative study. BMC Med Res Methodol. 2019 10 15; 19(1):192. PMID: 31615422.
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    7. Desalegn G, Tsegaye A, Gebreegziabiher D, Aseffa A, Howe R. Enhanced IFN-?, but not IL-2, response to Mycobacterium tuberculosis antigens in HIV/latent TB co-infected patients on long-term HAART. BMC Immunol. 2019 10 11; 20(1):35. PMID: 31601184.
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    8. Ahmed JH, Makonnen E, Fotoohi A, Aseffa A, Howe R, Aklillu E. CYP2D6 Genotype Predicts Plasma Concentrations of Tamoxifen Metabolites in Ethiopian Breast Cancer Patients. Cancers (Basel). 2019 Sep 12; 11(9). PMID: 31547390.
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    9. Negash AA, Asrat D, Abebe W, Hailemariam T, Gebre M, Aseffa A, Vaneechoutte M. Pneumococcal serotype 19A is the major cause of pediatric acute otitis media with ruptured tympanic membrane in Addis Ababa, Ethiopia, 5 years after the introduction of the ten-valent pneumococcal conjugate vaccine. Int J Pediatr Otorhinolaryngol. 2019 Nov; 126:109638. PMID: 31442868.
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    10. Mekonnen D, Derbie A, Chanie A, Shumet A, Biadglegne F, Kassahun Y, Bobosha K, Mihret A, Wassie L, Munshea A, Nibret E, Yimer SA, Tønjum T, Aseffa A. Molecular epidemiology of M. tuberculosis in Ethiopia: A systematic review and meta-analysis. Tuberculosis (Edinb). 2019 09; 118:101858. PMID: 31430694.
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    11. Leon ME, Kassa E, Bane A, Gemechu T, Tilahun Y, Endalafer N, McKay-Chopin S, Brancaccio RN, Ferro G, Assefa M, Ward E, Tommasino M, Aseffa A, Schüz J, Jemal A, Gheit T. Prevalence of human papillomavirus and Helicobacter pylori in esophageal and gastroesophageal junction cancer biopsies from a case-control study in Ethiopia. Infect Agent Cancer. 2019; 14:19. PMID: 31406502.
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    12. Commons RJ, Simpson JA, Thriemer K, Chu CS, Douglas NM, Abreha T, Alemu SG, Añez A, Anstey NM, Aseffa A, Assefa A, Awab GR, Baird JK, Barber BE, Borghini-Fuhrer I, D'Alessandro U, Dahal P, Daher A, de Vries PJ, Erhart A, Gomes MSM, Grigg MJ, Hwang J, Kager PA, Ketema T, Khan WA, Lacerda MVG, Leslie T, Ley B, Lidia K, Monteiro WM, Pereira DB, Phan GT, Phyo AP, Rowland M, Saravu K, Sibley CH, Siqueira AM, Stepniewska K, Taylor WRJ, Thwaites G, Tran BQ, Hien TT, Vieira JLF, Wangchuk S, Watson J, William T, Woodrow CJ, Nosten F, Guerin PJ, White NJ, Price RN. The haematological consequences of Plasmodium vivax malaria after chloroquine treatment with and without primaquine: a WorldWide Antimalarial Resistance Network systematic review and individual patient data meta-analysis. BMC Med. 2019 08 01; 17(1):151. PMID: 31366382.
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    13. Missailidis C, Sørensen N, Ashenafi S, Amogne W, Kassa E, Bekele A, Getachew M, Gebreselassie N, Aseffa A, Aderaye G, Andersson J, Brighenti S, Bergman P. Vitamin D and Phenylbutyrate Supplementation Does Not Modulate Gut Derived Immune Activation in HIV-1. Nutrients. 2019 Jul 21; 11(7). PMID: 31330899.
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    14. Keffale M, Shumie G, Behaksra SW, Chali W, Hoogen LLVD, Hailemeskel E, Mekonnen D, Chanyalew M, Damte D, Fanta T, Ashine T, Chali S, Tetteh KKA, Birhanu DD, Balcha TT, Aseffa A, Drakeley C, Tessema TS, Adamu H, Bousema T, Gadisa E, Tadesse FG. Serological evidence for a decline in malaria transmission following major scale-up of control efforts in a setting selected for Plasmodium vivax and Plasmodium falciparum malaria elimination in Babile district, Oromia, Ethiopia. Trans R Soc Trop Med Hyg. 2019 06 01; 113(6):305-311. PMID: 30927007.
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    15. Negash AA, Asrat D, Abebe W, Hailemariam T, Gebre M, Verhaegen J, Aseffa A, Vaneechoutte M. Pneumococcal Carriage, Serotype Distribution, and Risk Factors in Children With Community-Acquired Pneumonia, 5 Years After Introduction of the 10-Valent Pneumococcal Conjugate Vaccine in Ethiopia. Open Forum Infect Dis. 2019 Jun; 6(6):ofz259. PMID: 31263735.
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    16. Mekonnen B, Mihret A, Getahun M, Hailu T, Sidiki S, V Kelley H, Scordo JM, Hunt WG, Pan X, Balada-Llasat JM, Gebreyes W, Evans CA, Aseffa A, Torrelles JB, Wang SH, Abebe T. Evaluation of the tuberculosis culture color plate test for rapid detection of drug susceptible and drug-resistant Mycobacterium tuberculosis in a resource-limited setting, Addis Ababa, Ethiopia. PLoS One. 2019; 14(5):e0215679. PMID: 31136575.
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    17. Ahmed JH, Makonnen E, Yimer G, Seifu D, Bekele A, Assefa M, Aseffa A, Howe R, Fotoohi A, Hassan M, Aklillu E. CYP2J2*7 Genotype Predicts Risk of Chemotherapy-Induced Hematologic Toxicity and Reduced Relative Dose Intensity in Ethiopian Breast Cancer Patients. Front Pharmacol. 2019; 10:481. PMID: 31139078.
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    18. Sime WT, Aseffa A, Woldeamanuel Y, Brovall S, Morfeldt E, Henriques-Normark B. Serotype and molecular diversity of nasopharyngeal Streptococcus pneumoniae isolates from children before and after vaccination with the ten-valent pneumococcal conjugate vaccine (PCV10) in Ethiopia. BMC Infect Dis. 2019 May 10; 19(1):409. PMID: 31077141.
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    19. Mekonnen D, Derbie A, Abeje A, Shumet A, Nibret E, Biadglegne F, Munshae A, Bobosha K, Wassie L, Berg S, Aseffa A. Epidemiology of tuberculous lymphadenitis in Africa: A systematic review and meta-analysis. PLoS One. 2019; 14(4):e0215647. PMID: 31002716.
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    20. Shimeles E, Enquselassie F, Aseffa A, Tilahun M, Mekonen A, Wondimagegn G, Hailu T. Risk factors for tuberculosis: A case-control study in Addis Ababa, Ethiopia. PLoS One. 2019; 14(4):e0214235. PMID: 30939169.
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    21. Mihret W, Sletbakk Brusletto B, Øvstebø R, Siebke Troseid AM, Norheim G, Merid Y, Kassu A, Abebe W, Ayele S, Silamsaw Asres M, Yamuah L, Aseffa A, Petros B, Caugant DA, Brandtzaeg P. Molecular studies of meningococcal and pneumococcal meningitis patients in Ethiopia. Innate Immun. 2019 04; 25(3):158-167. PMID: 30894090.
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    22. Bekele Y, Lemma M, Bobosha K, Yibeltal D, Nasi A, Gebre M, Nilsson A, Aseffa A, Howe R, Chiodi F. Homing defects of B cells in HIV-1 infected children impair vaccination responses. Vaccine. 2019 Apr 17; 37(17):2348-2355. PMID: 30914222.
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    23. Duffy FJ, Weiner J, Hansen S, Tabb DL, Suliman S, Thompson E, Maertzdorf J, Shankar S, Tromp G, Parida S, Dover D, Axthelm MK, Sutherland JS, Dockrell HM, Ottenhoff THM, Scriba TJ, Picker LJ, Walzl G, Kaufmann SHE, Zak DE. Immunometabolic Signatures Predict Risk of Progression to Active Tuberculosis and Disease Outcome. Front Immunol. 2019; 10:527. PMID: 30967866.
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    24. Bodin J, Mihret A, Holm-Hansen C, Dembinski JL, Trieu MC, Tessema B, Tarekegne A, Yimer SA, Cox R, Aseffa A, Haneberg B, Mjaaland S. Vitamin D Deficiency is Associated with Increased Use of Antimicrobials among Preschool Girls in Ethiopia. Nutrients. 2019 Mar 07; 11(3). PMID: 30866564.
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    25. Birhanu AG, Yimer SA, Kalayou S, Riaz T, Zegeye ED, Holm-Hansen C, Norheim G, Aseffa A, Abebe M, Tønjum T. Ample glycosylation in membrane and cell envelope proteins may explain the phenotypic diversity and virulence in the Mycobacterium tuberculosis complex. Sci Rep. 2019 Feb 27; 9(1):2927. PMID: 30814666.
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    26. Cooper LV, Robson A, Trotter CL, Aseffa A, Collard JM, Daugla DM, Diallo A, Hodgson A, Jusot JF, Omotara B, Sow S, Hassan-King M, Manigart O, Nascimento M, Woukeu A, Chandramohan D, Borrow R, Maiden MCJ, Greenwood B, Stuart JM. Risk factors for acquisition of meningococcal carriage in the African meningitis belt. Trop Med Int Health. 2019 04; 24(4):392-400. PMID: 30729627.
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    27. Ahmed JH, Makonnen E, Fotoohi A, Yimer G, Seifu D, Assefa M, Tigeneh W, Aseffa A, Howe R, Aklillu E. Vitamin D Status and Association of VDR Genetic Polymorphism to Risk of Breast Cancer in Ethiopia. Nutrients. 2019 Jan 29; 11(2). PMID: 30699973.
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    28. Negash AA, Asrat D, Abebe W, Hailemariam T, Hailu T, Aseffa A, Vaneechoutte M. Bacteremic Community-Acquired Pneumonia in Ethiopian Children: Etiology, Antibiotic Resistance, Risk Factors, and Clinical Outcome. Open Forum Infect Dis. 2019 Mar; 6(3):ofz029. PMID: 30838226.
      View in: PubMed
    29. Ashenafi S, Amogne W, Kassa E, Gebreselassie N, Bekele A, Aseffa G, Getachew M, Aseffa A, Worku A, Hammar U, Bergman P, Aderaye G, Andersson J, Brighenti S. Daily Nutritional Supplementation with Vitamin D3 and Phenylbutyrate to Treatment-Naïve HIV Patients Tested in a Randomized Placebo-Controlled Trial. Nutrients. 2019 Jan 10; 11(1). PMID: 30634590.
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    30. Negera E, Tilahun M, Bobosha K, Lambert SM, Walker SL, Spencer JS, Aseffa A, Dockrell HM, Lockwood DN. The effects of prednisolone treatment on serological responses and lipid profiles in Ethiopian leprosy patients with Erythema Nodosum Leprosum reactions. PLoS Negl Trop Dis. 2018 12; 12(12):e0007035. PMID: 30592714.
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    31. Weiner J, Maertzdorf J, Sutherland JS, Duffy FJ, Thompson E, Suliman S, McEwen G, Thiel B, Parida SK, Zyla J, Hanekom WA, Mohney RP, Boom WH, Mayanja-Kizza H, Howe R, Dockrell HM, Ottenhoff THM, Scriba TJ, Zak DE, Walzl G, Kaufmann SHE. Metabolite changes in blood predict the onset of tuberculosis. Nat Commun. 2018 12 06; 9(1):5208. PMID: 30523338.
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    32. Greenwood BM, Aseffa A, Caugant DA, Diallo K, Kristiansen PA, Maiden MCJ, Stuart JM, Trotter CL. Narrative review of methods and findings of recent studies on the carriage of meningococci and other Neisseria species in the African Meningitis Belt. Trop Med Int Health. 2019 02; 24(2):143-154. PMID: 30461138.
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    33. Diallo K, Coulibaly MD, Rebbetts LS, Harrison OB, Lucidarme J, Gamougam K, Tekletsion YK, Bugri A, Toure A, Issaka B, Dieng M, Trotter C, Collard JM, Sow SO, Wang X, Mayer LW, Borrow R, Greenwood BM, Maiden MCJ, Manigart O. Development of a PCR algorithm to detect and characterize Neisseria meningitidis carriage isolates in the African meningitis belt. PLoS One. 2018; 13(12):e0206453. PMID: 30517103.
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    34. Ferede G, Tiruneh M, Abate E, Wondimeneh Y, Gadisa E, Howe R, Aseffa A, Tessema B. A study of clinical, hematological, and biochemical profiles of patients with dengue viral infections in Northwest Ethiopia: implications for patient management. BMC Infect Dis. 2018 Dec 04; 18(1):616. PMID: 30514223.
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    35. Bekele S, Derese Y, Hailu E, Mihret A, Dagne K, Yamuah L, Hailu T, Ayele S, Beyene D, Berg S, Aseffa A. Line-probe assay and molecular typing reveal a potential drug resistant clone of Mycobacterium tuberculosis in Ethiopia. Trop Dis Travel Med Vaccines. 2018; 4:15. PMID: 30534412.
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    36. Park SE, Pham DT, Boinett C, Wong VK, Pak GD, Panzner U, Espinoza LMC, von Kalckreuth V, Im J, Schütt-Gerowitt H, Crump JA, Breiman RF, Adu-Sarkodie Y, Owusu-Dabo E, Rakotozandrindrainy R, Soura AB, Aseffa A, Gasmelseed N, Keddy KH, May J, Sow AG, Aaby P, Biggs HM, Hertz JT, Montgomery JM, Cosmas L, Olack B, Fields B, Sarpong N, Razafindrabe TJL, Raminosoa TM, Kabore LP, Sampo E, Teferi M, Yeshitela B, El Tayeb MA, Sooka A, Meyer CG, Krumkamp R, Dekker DM, Jaeger A, Poppert S, Tall A, Niang A, Bjerregaard-Andersen M, Løfberg SV, Seo HJ, Jeon HJ, Deerin JF, Park J, Konings F, Ali M, Clemens JD, Hughes P, Sendagala JN, Vudriko T, Downing R, Ikumapayi UN, Mackenzie GA, Obaro S, Argimon S, Aanensen DM, Page A, Keane JA, Duchene S, Dyson Z, Holt KE, Dougan G, Marks F, Baker S. The phylogeography and incidence of multi-drug resistant typhoid fever in sub-Saharan Africa. Nat Commun. 2018 11 30; 9(1):5094. PMID: 30504848.
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    37. Jeon HJ, Pak GD, Im J, Owusu-Dabo E, Adu-Sarkodie Y, Gassama Sow A, Bassiahi Soura A, Gasmelseed N, Keddy KH, Bjerregaard-Andersen M, Konings F, Aseffa A, Crump JA, Chon Y, Breiman RF, Park SE, Cruz Espinoza LM, Seo HJ, May J, Meyer CG, Andrews JR, Panzner U, von Kalckreuth V, Wierzba TF, Rakotozandrindrainy R, Dougan G, Levine MM, Hombach J, Kim JH, Clemens JD, Baker S, Marks F. Determining the Best Immunization Strategy for Protecting African Children Against Invasive Salmonella Disease. Clin Infect Dis. 2018 11 28; 67(12):1824-1830. PMID: 29746615.
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    38. Mekonnen A, Collins JM, Aseffa A, Ameni G, Petros B. Prevalence of pulmonary tuberculosis among students in three eastern Ethiopian universities. Int J Tuberc Lung Dis. 2018 10 01; 22(10):1210-1215. PMID: 30236190.
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    39. Mekonnen A, Merker M, Collins JM, Addise D, Aseffa A, Petros B, Ameni G, Niemann S. Molecular epidemiology and drug resistance patterns of Mycobacterium tuberculosis complex isolates from university students and the local community in Eastern Ethiopia. PLoS One. 2018; 13(9):e0198054. PMID: 30222743.
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    40. Girma S, Avanzi C, Bobosha K, Desta K, Idriss MH, Busso P, Tsegaye Y, Nigusse S, Hailu T, Cole ST, Aseffa A. Evaluation of Auramine O staining and conventional PCR for leprosy diagnosis: A comparative cross-sectional study from Ethiopia. PLoS Negl Trop Dis. 2018 09; 12(9):e0006706. PMID: 30180155.
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    41. Alemayehu C, Mitchell G, Nikles J, Aseffa A, Clavarino A. Views and perceptions about locally manufactured medicines in Ethiopia: a qualitative study of physicians, patients and regulatory authorities. BMC Health Serv Res. 2018 08 08; 18(1):624. PMID: 30089496.
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    42. Shitaye G, Gadisa E, Grignard L, Shumie G, Chali W, Menberu T, Belachew M, Tegegn G, Challi S, Curry J, Mahey L, Hailu T, Mamo H, Menon M, Balcha T, Aseffa A, Drakeley C, Bousema T, Tadesse FG. Low and heterogeneous prevalence of glucose-6-phosphate dehydrogenase deficiency in different settings in Ethiopia using phenotyping and genotyping approaches. Malar J. 2018 Aug 02; 17(1):281. PMID: 30071859.
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    43. Adal M, Howe R, Kassa D, Aseffa A, Petros B. Associations of gender and serum total cholesterol with CD4+ T cell count and HIV RNA load in antiretroviral-naïve individuals in Addis Ababa. BMC Public Health. 2018 07 31; 18(1):943. PMID: 30064395.
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    44. Comeau DL, Mishkin K, Tukvadze N, Avaliani Z, Kempker RR, Sthreshley L, Magee MJ, Eisen H, Mariam DH, Aseffa A, Blumberg HM. Mentoring in Global Health: Formative Evaluation of Tuberculosis Research Training Programs in Ethiopia and Georgia. Am J Trop Med Hyg. 2018 09; 99(3):565-577. PMID: 30014815.
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    45. Habtamu M, Abebe M, Aseffa A, Dyrhol-Riise AM, Spurkland A, Abrahamsen G. In vitro analysis of antigen induced T cell-monocyte conjugates by imaging flow cytometry. J Immunol Methods. 2018 09; 460:93-100. PMID: 29981305.
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    46. Ashenafi S, Mazurek J, Rehn A, Lemma B, Aderaye G, Bekele A, Assefa G, Chanyalew M, Aseffa A, Andersson J, Bergman P, Brighenti S. Vitamin D3 Status and the Association with Human Cathelicidin Expression in Patients with Different Clinical Forms of Active Tuberculosis. Nutrients. 2018 Jun 04; 10(6). PMID: 29867045.
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    47. Tadesse FG, Slater HC, Chali W, Teelen K, Lanke K, Belachew M, Menberu T, Shumie G, Shitaye G, Okell LC, Graumans W, van Gemert GJ, Kedir S, Tesfaye A, Belachew F, Abebe W, Mamo H, Sauerwein R, Balcha T, Aseffa A, Yewhalaw D, Gadisa E, Drakeley C, Bousema T. The Relative Contribution of Symptomatic and Asymptomatic Plasmodium vivax and Plasmodium falciparum Infections to the Infectious Reservoir in a Low-Endemic Setting in Ethiopia. Clin Infect Dis. 2018 06 01; 66(12):1883-1891. PMID: 29304258.
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    48. Ferede G, Tiruneh M, Abate E, Wondimeneh Y, Damtie D, Gadisa E, Howe R, Aseffa A, Tessema B. A serologic study of dengue in northwest Ethiopia: Suggesting preventive and control measures. PLoS Negl Trop Dis. 2018 05; 12(5):e0006430. PMID: 29852020.
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    49. Bekele A, Gebreselassie N, Ashenafi S, Kassa E, Aseffa G, Amogne W, Getachew M, Aseffa A, Worku A, Raqib R, Agerberth B, Hammar U, Bergman P, Aderaye G, Andersson J, Brighenti S. Daily adjunctive therapy with vitamin D3 and phenylbutyrate supports clinical recovery from pulmonary tuberculosis: a randomized controlled trial in Ethiopia. J Intern Med. 2018 09; 284(3):292-306. PMID: 29696707.
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    50. Golassa L, Erko B, Baliraine FN, Aseffa A, Swedberg G. Correction to: Polymorphisms in chloroquine resistance-associated genes in Plasmodium vivax in Ethiopia. Malar J. 2018 05 02; 17(1):188. PMID: 29720184.
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    51. Merid Y, Woldeamanuel Y, Abebe M, Datiko DG, Hailu T, Habtamu G, Assefa G, Kempker RR, Blumberg HM, Aseffa A. High utility of active tuberculosis case finding in an Ethiopian prison. Int J Tuberc Lung Dis. 2018 05 01; 22(5):524-529. PMID: 29663957.
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    52. Adal M, Howe R, Kassa D, Aseffa A, Petros B. Malnutrition and lipid abnormalities in antiretroviral naïve HIV-infected adults in Addis Ababa: A cross-sectional study. PLoS One. 2018; 13(4):e0195942. PMID: 29672576.
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    53. Duffy FJ, Thompson E, Downing K, Suliman S, Mayanja-Kizza H, Boom WH, Thiel B, Weiner Iii J, Kaufmann SHE, Dover D, Tabb DL, Dockrell HM, Ottenhoff THM, Tromp G, Scriba TJ, Zak DE, Walzl G. A Serum Circulating miRNA Signature for Short-Term Risk of Progression to Active Tuberculosis Among Household Contacts. Front Immunol. 2018; 9:661. PMID: 29706954.
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    54. Suliman S, Thompson E, Sutherland J, Weiner Rd J, Ota MOC, Shankar S, Penn-Nicholson A, Thiel B, Erasmus M, Maertzdorf J, Duffy FJ, Hill PC, Hughes EJ, Stanley K, Downing K, Fisher ML, Valvo J, Parida SK, van der Spuy G, Tromp G, Adetifa IMO, Donkor S, Howe R, Mayanja-Kizza H, Boom WH, Dockrell H, Ottenhoff THM, Hatherill M, Aderem A, Hanekom WA, Scriba TJ, Kaufmann SH, Zak DE, Walzl G. Four-gene Pan-African Blood Signature Predicts Progression to Tuberculosis. Am J Respir Crit Care Med. 2018 04 06. PMID: 29624071.
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    55. Tiberi S, Petersen E, Maeurer M, Ntoumi F, Yeboa-Manu D, Mwaba P, Vilaplana C, Dar O, Bates M, Corrah T, Rao M, Kapata N, Azhar EI, Memish ZA, Mfinanga S, Aseffa A, Ippolito G, Migliori GB, Zumla A. Taking forward the Stop TB Partnership and World Health Organization Joint Theme for World TB Day March 24th 2018 - "Wanted: Leaders for a TB-Free World. You can make history. End TB". Int J Infect Dis. 2018 03; 68:122-124. PMID: 29571578.
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    56. Negera E, Walker SL, Lema T, Aseffa A, Lockwood DN, Dockrell HM. Complement C1q expression in Erythema nodosum leprosum. PLoS Negl Trop Dis. 2018 03; 12(3):e0006321. PMID: 29499046.
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    57. Zimara N, Chanyalew M, Aseffa A, van Zandbergen G, Lepenies B, Schmid M, Weiss R, Rascle A, Wege AK, Jantsch J, Schatz V, Brown GD, Ritter U. Dectin-1 Positive Dendritic Cells Expand after Infection with Leishmania major Parasites and Represent Promising Targets for Vaccine Development. Front Immunol. 2018; 9:263. PMID: 29535708.
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    58. Tilahun M, Ameni G, Desta K, Zewude A, Yamuah L, Abebe M, Aseffa A. Molecular epidemiology and drug sensitivity pattern of Mycobacterium tuberculosis strains isolated from pulmonary tuberculosis patients in and around Ambo Town, Central Ethiopia. PLoS One. 2018; 13(2):e0193083. PMID: 29447273.
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    265. Berg S, Firdessa R, Habtamu M, Gadisa E, Mengistu A, Yamuah L, Ameni G, Vordermeier M, Robertson BD, Smith NH, Engers H, Young D, Hewinson RG, Aseffa A, Gordon SV. The burden of mycobacterial disease in ethiopian cattle: implications for public health. PLoS One. 2009; 4(4):e5068. PMID: 19352493.
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    266. Tschopp R, Schelling E, Hattendorf J, Aseffa A, Zinsstag J. Risk factors of bovine tuberculosis in cattle in rural livestock production systems of Ethiopia. Prev Vet Med. 2009 Jun 01; 89(3-4):205-11. PMID: 19339066.
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    267. Geluk A, Spencer JS, Bobosha K, Pessolani MC, Pereira GM, Banu S, Honoré N, Reece ST, MacDonald M, Sapkota BR, Ranjit C, Franken KL, Zewdie M, Aseffa A, Hussain R, Stefani MM, Cho SN, Oskam L, Brennan PJ, Dockrell HM. From genome-based in silico predictions to ex vivo verification of leprosy diagnosis. Clin Vaccine Immunol. 2009 Mar; 16(3):352-9. PMID: 19176694.
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    268. Müller B, Hilty M, Berg S, Garcia-Pelayo MC, Dale J, Boschiroli ML, Cadmus S, Ngandolo BN, Godreuil S, Diguimbaye-Djaibé C, Kazwala R, Bonfoh B, Njanpop-Lafourcade BM, Sahraoui N, Guetarni D, Aseffa A, Mekonnen MH, Razanamparany VR, Ramarokoto H, Djønne B, Oloya J, Machado A, Mucavele C, Skjerve E, Portaels F, Rigouts L, Michel A, Müller A, Källenius G, van Helden PD, Hewinson RG, Zinsstag J, Gordon SV, Smith NH. African 1, an epidemiologically important clonal complex of Mycobacterium bovis dominant in Mali, Nigeria, Cameroon, and Chad. J Bacteriol. 2009 Mar; 191(6):1951-60. PMID: 19136597.
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    269. Iwnetu R, van den Hombergh J, Woldeamanuel Y, Asfaw M, Gebrekirstos C, Negussie Y, Bekele T, Ashenafi S, Seyoum B, Melaku K, Yamuah L, Tilahun H, Tadesse Z, Aseffa A. Is tuberculous lymphadenitis over-diagnosed in Ethiopia? Comparative performance of diagnostic tests for mycobacterial lymphadenitis in a high-burden country. Scand J Infect Dis. 2009; 41(6-7):462-8. PMID: 19382003.
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    270. Merid Y, Yassin MA, Yamuah L, Kumar R, Engers H, Aseffa A. Validation of bleach-treated smears for the diagnosis of pulmonary tuberculosis. Int J Tuberc Lung Dis. 2009 Jan; 13(1):136-41. PMID: 19105892.
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    271. Beyene G, Asrat D, Mengistu Y, Aseffa A, Wain J. Typhoid fever in Ethiopia. J Infect Dev Ctries. 2008 Dec 01; 2(6):448-53. PMID: 19745522.
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    272. Teka H, Petros B, Yamuah L, Tesfaye G, Elhassan I, Muchohi S, Kokwaro G, Aseffa A, Engers H. Chloroquine-resistant Plasmodium vivax malaria in Debre Zeit, Ethiopia. Malar J. 2008 Oct 29; 7:220. PMID: 18959774.
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    273. Asmamaw D, Seyoum B, Makonnen E, Atsebeha H, Woldemeskel D, Yamuah L, Addus H, Aseffa A. Primary drug resistance in newly diagnosed smear positive tuberculosis patients in Addis Ababa, Ethiopia. Ethiop Med J. 2008 Oct; 46(4):367-74. PMID: 19271401.
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    274. Beyene D, Ashenafi S, Yamuah L, Aseffa A, Wiker H, Engers H, Klatser P, Sviland L. Diagnosis of tuberculous lymphadenitis in Ethiopia: correlation with culture, histology and HIV status. Int J Tuberc Lung Dis. 2008 Sep; 12(9):1030-6. PMID: 18713500.
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    275. Meskel DW, Abate G, Lakew M, Goshu S, Aseffa A. Anti-tuberculosis drug resistance among retreatment patients seen at St Peter Tuberculosis Specialized Hospital. Ethiop Med J. 2008 Jul; 46(3):219-25. PMID: 19271385.
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    276. Boraschi D, Abebe Alemayehu M, Aseffa A, Chiodi F, Chisi J, Del Prete G, Doherty TM, Elhassan I, Engers H, Gyan B, Harandi AM, Kariuki T, Kironde F, Kouriba B, Langhorne J, Laskay T, Medaglini D, Olesen O, Onyebujoh P, Palma C, Sauerwein R, Sibanda E, Steinhoff U, Tagliabue A, Thiel A, Vahedi M, Troye-Blomberg M. Immunity against HIV/AIDS, malaria, and tuberculosis during co-infections with neglected infectious diseases: recommendations for the European Union research priorities. PLoS Negl Trop Dis. 2008 Jun 25; 2(6):e255. PMID: 18575596.
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    277. Ameni G, Hewinson G, Aseffa A, Young D, Vordermeier M. Appraisal of interpretation criteria for the comparative intradermal tuberculin test for diagnosis of tuberculosis in cattle in central Ethiopia. Clin Vaccine Immunol. 2008 Aug; 15(8):1272-6. PMID: 18495847.
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    278. Elias D, Britton S, Aseffa A, Engers H, Akuffo H. Poor immunogenicity of BCG in helminth infected population is associated with increased in vitro TGF-beta production. Vaccine. 2008 Jul 23; 26(31):3897-902. PMID: 18554755.
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    279. Negera E, Gadisa E, Yamuah L, Engers H, Hussein J, Kuru T, Hailu A, Gedamu L, Aseffa A. Outbreak of cutaneous leishmaniasis in Silti woreda, Ethiopia: risk factor assessment and causative agent identification. Trans R Soc Trop Med Hyg. 2008 Sep; 102(9):883-90. PMID: 18479722.
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    280. Alvar J, Aparicio P, Aseffa A, Den Boer M, Cañavate C, Dedet JP, Gradoni L, Ter Horst R, López-Vélez R, Moreno J. The relationship between leishmaniasis and AIDS: the second 10 years. Clin Microbiol Rev. 2008 Apr; 21(2):334-59, table of contents. PMID: 18400800.
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    281. Yimer G, Aderaye G, Amogne W, Makonnen E, Aklillu E, Lindquist L, Yamuah L, Feleke B, Aseffa A. Anti-tuberculosis therapy-induced hepatotoxicity among Ethiopian HIV-positive and negative patients. PLoS One. 2008 Mar 19; 3(3):e1809. PMID: 18350147.
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    282. Norheim G, Aseffa A, Yassin MA, Mengistu G, Kassu A, Fikremariam D, Tamire W, Merid Y, Høiby EA, Caugant DA, Fritzsønn E, Tangen T, Melak B, Berhanu D, Harboe M, Kolberg J, Rosenqvist E. Specificity of subcapsular antibody responses in Ethiopian patients following disease caused by serogroup A meningococci. Clin Vaccine Immunol. 2008 May; 15(5):863-71. PMID: 18337382.
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    283. Wassie L, Demissie A, Aseffa A, Abebe M, Yamuah L, Tilahun H, Petros B, Rook G, Zumla A, Andersen P, Doherty TM. Ex vivo cytokine mRNA levels correlate with changing clinical status of ethiopian TB patients and their contacts over time. PLoS One. 2008 Jan 30; 3(1):e1522. PMID: 18231607.
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    284. Ameni G, Aseffa A, Sirak A, Engers H, Young DB, Hewinson RG, Vordermeier MH, Gordon SV. Effect of skin testing and segregation on the prevalence of bovine tuberculosis, and molecular typing of Mycobacterium bovis, in Ethiopia. Vet Rec. 2007 Dec 08; 161(23):782-6. PMID: 18065813.
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    285. Boelaert M, El-Safi S, Hailu A, Mukhtar M, Rijal S, Sundar S, Wasunna M, Aseffa A, Mbui J, Menten J, Desjeux P, Peeling RW. Diagnostic tests for kala-azar: a multi-centre study of the freeze-dried DAT, rK39 strip test and KAtex in East Africa and the Indian subcontinent. Trans R Soc Trop Med Hyg. 2008 Jan; 102(1):32-40. PMID: 17942129.
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    286. Duncan ME, Hansen S, Tadesse T, Bezuneh E, Yassin MA, Zeleke A, Solomon A, Jamal GA, Hunegnaw M, Kazen R, Aseffa A, Challis A, Wagaye W. Thermal threshold tester, a useful tool for detection of very early nerve damage--determination of normal values in a healthy population unexposed to Mycobacterium leprae and its application in the A9 study. Ethiop Med J. 2007 Oct; 45 Suppl 1:25-33. PMID: 18710071.
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    287. Duncan ME, Hansen S, Tadesse T, Bezuneh E, Yassin MA, Zeleke A, Solomon A, Jamal GA, Hunegnaw M, Kazen R, Aseffa A, Challis A, Wagaye W. Peripheral nerves and nerve function in highland Ethiopians. Ethiop Med J. 2007 Oct; 45 Suppl 1:61-72. PMID: 18710074.
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    288. Duncan ME, Hansen S, Zeleke A, Solomon A, Tadesse T, Bezuneh E, Yassin MA, Hunegnaw M, Aseffa A, Wagaye W, Tilahun H. Health profile of highland Ethiopians in a small town in the south-western part of the country. Ethiop Med J. 2007 Oct; 45 Suppl 1:43-60. PMID: 18710073.
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    289. Aseffa A, Engers H, Leekassa R. Editorial: leprosy research and current priorities in Ethiopia. Ethiop Med J. 2007 Oct; 45 Suppl 1:2p preceding 1. PMID: 18710068.
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    290. Aderaye G, G/Egziabher H, Aseffa A, Worku A, Lindquist L. Comparison of acid-fast stain and culture for Mycobacterium tuberculosis in pre- and post-bronchoscopy sputum and bronchoalveolar lavage in HIV-infected patients with atypical chest X-ray in Ethiopia. Ann Thorac Med. 2007 Oct; 2(4):154-7. PMID: 19727366.
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    291. Kassu A, Mengistu G, Ayele B, Diro E, Mekonnen F, Ketema D, Moges F, Mesfin T, Getachew A, Ergicho B, Elias D, Wondmikun Y, Aseffa A, Ota F. HIV and intestinal parasites in adult TB patients in a teaching hospital in Northwest Ethiopia. Trop Doct. 2007 Oct; 37(4):222-4. PMID: 17988484.
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    292. Duncan ME, Miko T, Howe R, Hansen S, Menzel S, Melsom R, Frommel D, Bezuneh E, Hunegnaw M, Amare G, Wagaye W, Challis A, Aseffa A. Growth and development of children of mothers with leprosy and healthy controls. Ethiop Med J. 2007 Oct; 45 Suppl 1:9-23. PMID: 18710070.
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    293. Ameni G, Aseffa A, Engers H, Young D, Gordon S, Hewinson G, Vordermeier M. High prevalence and increased severity of pathology of bovine tuberculosis in Holsteins compared to zebu breeds under field cattle husbandry in central Ethiopia. Clin Vaccine Immunol. 2007 Oct; 14(10):1356-61. PMID: 17761523.
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    294. Diro E, Techane Y, Tefera T, Assefa Y, Kebede T, Genetu A, Kebede Y, Tesfaye A, Ergicho B, Gebre-Yohannes A, Mengistu G, Engers H, Aseffa A, Desjeux P, Boelaert M, Hailu A. Field evaluation of FD-DAT, rK39 dipstick and KATEX (urine latex agglutination) for diagnosis of visceral leishmaniasis in northwest Ethiopia. Trans R Soc Trop Med Hyg. 2007 Sep; 101(9):908-14. PMID: 17624385.
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    295. Aseffa A, Bedru A, Yamuah L, Arga D, Worku A, Chandramohan D, Nelson CB, Engers HD. Safety of a trivalent meningococcal ACW135 vaccine among young children in Ethiopia. Vaccine. 2007 Sep 03; 25 Suppl 1:A79-82. PMID: 17548138.
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    296. Kassu A, Mengistu G, Ayele B, Diro E, Mekonnen F, Ketema D, Moges F, Mesfin T, Getachew A, Ergicho B, Elias D, Aseffa A, Wondmikun Y, Ota F. Coinfection and clinical manifestations of tuberculosis in human immunodeficiency virus-infected and -uninfected adults at a teaching hospital, northwest Ethiopia. J Microbiol Immunol Infect. 2007 Apr; 40(2):116-22. PMID: 17446959.
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    297. Norheim G, Aseffa A, Yassin MA, Mengistu G, Kassu A, Fikremariam D, Tamire W, Merid Y, Høiby EA, Caugant DA, Fritzsønn E, Tangen T, Alebel T, Berhanu D, Harboe M, Rosenqvist E. Serum antibody responses in Ethiopian meningitis patients infected with Neisseria meningitidis serogroup A sequence type 7. Clin Vaccine Immunol. 2007 Apr; 14(4):451-63. PMID: 17301215.
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    298. Kuru T, Jirata D, Genetu A, Barr S, Mengistu Y, Aseffa A, Gedamu L. Leishmania aethiopica: identification and characterization of cathepsin L-like cysteine protease genes. Exp Parasitol. 2007 Mar; 115(3):283-90. PMID: 17083936.
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    299. Gadisa E, Genetu A, Kuru T, Jirata D, Dagne K, Aseffa A, Gedamu L. Leishmania (Kinetoplastida): species typing with isoenzyme and PCR-RFLP from cutaneous leishmaniasis patients in Ethiopia. Exp Parasitol. 2007 Apr; 115(4):339-43. PMID: 17083934.
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    300. Shimeles E, Aseffa A, Yamuah L, Tilahun H, Engers H. Knowledge and practice of private practitioners in TB control in Addis Ababa. Int J Tuberc Lung Dis. 2006 Oct; 10(10):1172-7. PMID: 17044213.
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    301. Jirata D, Kuru T, Genetu A, Barr S, Hailu A, Aseffa A, Gedamu L. Identification, sequencing and expression of peroxidoxin genes from Leishmania aethiopica. Acta Trop. 2006 Aug; 99(1):88-96. PMID: 16962062.
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    302. Ameni G, Aseffa A, Engers H, Young D, Hewinson G, Vordermeier M. Cattle husbandry in Ethiopia is a predominant factor affecting the pathology of bovine tuberculosis and gamma interferon responses to mycobacterial antigens. Clin Vaccine Immunol. 2006 Sep; 13(9):1030-6. PMID: 16960115.
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    303. Gumy A, Aseffa A, Rachinel N, Breton M, Otten L, Tacchini-Cottier F, Röcken M, Doyen N, Acha-Orbea H, Locksley RM, MacDonald HR, Launois P, Louis J. LACK-reactive CD4+ T cells require autocrine IL-2 to mediate susceptibility to Leishmania major. Eur J Immunol. 2006 Jun; 36(6):1465-73. PMID: 16637008.
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    304. Demissie A, Wassie L, Abebe M, Aseffa A, Rook G, Zumla A, Andersen P, Doherty TM. The 6-kilodalton early secreted antigenic target-responsive, asymptomatic contacts of tuberculosis patients express elevated levels of interleukin-4 and reduced levels of gamma interferon. Infect Immun. 2006 May; 74(5):2817-22. PMID: 16622219.
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    305. Abdissa A, Asrat D, Kronvall G, Shittu B, Achiko D, Zeidan M, Yamuah LK, Aseffa A. High diversity of group A streptococcal emm types among healthy schoolchildren in Ethiopia. Clin Infect Dis. 2006 May 15; 42(10):1362-7. PMID: 16619146.
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    306. Kassu A, Moges F, Mekonnen F, Mengistu G, Abate E, Mekonnen E, Molla K, Zewde T, Aseffa A, Wondmikun Y, Ota F. Seroprevalence of human immunodeficiency virus among blood donors in Northwest Ethiopia, 1995-2002. Trop Doct. 2006 Apr; 36(2):106-7. PMID: 16611446.
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    307. Genetu A, Gadisa E, Aseffa A, Barr S, Lakew M, Jirata D, Kuru T, Kidane D, Hunegnaw M, Gedamu L. Leishmania aethiopica: strain identification and characterization of superoxide dismutase-B genes. Exp Parasitol. 2006 Aug; 113(4):221-6. PMID: 16516199.
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    308. Norheim G, Rosenqvist E, Aseffa A, Yassin MA, Mengistu G, Kassu A, Fikremariam D, Tamire W, Høiby EA, Alebel T, Berhanu D, Merid Y, Harboe M, Caugant DA. Characterization of Neisseria meningitidis isolates from recent outbreaks in Ethiopia and comparison with those recovered during the epidemic of 1988 to 1989. J Clin Microbiol. 2006 Mar; 44(3):861-71. PMID: 16517868.
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    309. Demissie A, Leyten EM, Abebe M, Wassie L, Aseffa A, Abate G, Fletcher H, Owiafe P, Hill PC, Brookes R, Rook G, Zumla A, Arend SM, Klein M, Ottenhoff TH, Andersen P, Doherty TM. Recognition of stage-specific mycobacterial antigens differentiates between acute and latent infections with Mycobacterium tuberculosis. Clin Vaccine Immunol. 2006 Feb; 13(2):179-86. PMID: 16467323.
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    310. Tadesse A, Abebe M, Bizuneh E, Mulugeta W, Aseffa A, Shannon EJ. Effect of thalidomide on the expression of TNF-alpha m-RNA and synthesis of TNF-alpha in cells from leprosy patients with reversal reaction. Immunopharmacol Immunotoxicol. 2006; 28(3):431-41. PMID: 16997792.
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    311. Aseffa A, Brennan P, Dockrell H, Gillis T, Hussain R, Oskam L, Richardus JH. Report on the first meeting of the IDEAL (Initiative for Diagnostic and Epidemiological Assays for Leprosy) consortium held at Armauer Hansen Research Institute, ALERT, Addis Ababa, Ethiopia on 24-27 October 2004. Lepr Rev. 2005 Jun; 76(2):147-59. PMID: 16038248.
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    312. Arinola OG, Louis JS, Tacchini-Cottier F, Aseffa A, Salimonu LS. Pregnancy impairs resistance of C57BL/6 mice to Leishmania major infection. Afr J Med Med Sci. 2005 Mar; 34(1):65-70. PMID: 15971557.
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    313. Harboe M, Aseffa A, Leekassa R. Challenges presented by nerve damage in leprosy. Lepr Rev. 2005 Mar; 76(1):5-13. PMID: 15881032.
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    314. Arinola OG, Louis J, Tacchini-Cottier F, Aseffa A, Salimonu LS. Interleukin-4 (IL-4) and interferon-gamma (IFN-gamma) in pregnant C57BL/6 mice infected with L. major at different gestational periods. West Afr J Med. 2004 Jul-Sep; 23(3):202-7. PMID: 15587829.
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    315. Demissie A, Abebe M, Aseffa A, Rook G, Fletcher H, Zumla A, Weldingh K, Brock I, Andersen P, Doherty TM. Healthy individuals that control a latent infection with Mycobacterium tuberculosis express high levels of Th1 cytokines and the IL-4 antagonist IL-4delta2. J Immunol. 2004 Jun 01; 172(11):6938-43. PMID: 15153513.
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    316. Aseffa A, Engers H. Recent contributions to mycobactrial research and capacity building in Ethiopia. Ethiop Med J. 2004 Apr; 42 Suppl 1:1 p following table of contents. PMID: 16895013.
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    317. Abate G, Aseffa A, Selassie A, Goshu S, Fekade B, WoldeMeskal D, Miörner H. Direct colorimetric assay for rapid detection of rifampin-resistant Mycobacterium tuberculosis. J Clin Microbiol. 2004 Feb; 42(2):871-3. PMID: 14766876.
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    318. Beyene D, Aseffa A, Harboe M, Kidane D, Macdonald M, Klatser PR, Bjune GA, Smith WC. Nasal carriage of Mycobacterium leprae DNA in healthy individuals in Lega Robi village, Ethiopia. Epidemiol Infect. 2003 Oct; 131(2):841-8. PMID: 14596524.
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    319. Yassin MA, Olobo JO, Kidane D, Negesse Y, Shimeles E, Tadesse A, Demissie A, Britton S, Harboe M, Aseffa A, Abate G. Diagnosis of tuberculous lymphadenitis in Butajira, rural Ethiopia. Scand J Infect Dis. 2003; 35(4):240-3. PMID: 12839151.
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    320. Kidane D, Olobo JO, Habte A, Negesse Y, Aseffa A, Abate G, Yassin MA, Bereda K, Harboe M. Identification of the causative organism of tuberculous lymphadenitis in ethiopia by PCR. J Clin Microbiol. 2002 Nov; 40(11):4230-4. PMID: 12409403.
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    321. Aseffa A, Gumy A, Launois P, MacDonald HR, Louis JA, Tacchini-Cottier F. The early IL-4 response to Leishmania major and the resulting Th2 cell maturation steering progressive disease in BALB/c mice are subject to the control of regulatory CD4+CD25+ T cells. J Immunol. 2002 Sep 15; 169(6):3232-41. PMID: 12218142.
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    322. Mitike G, Genetu A, Kassu A, Aseffa A, Woldemichael K, Kebede Y, Melesse T, Dubisso B, Admassu R, Debebe A. A community based study of urogenital chlamydia trachomatis in males aged fifteen years and above, Dembia District, northwest Ethiopia. Ethiop Med J. 2002 Jul; 40(3):251-7. PMID: 12602249.
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    323. Blatz R, Aseffa A, Gedefaw M, Rühle HJ, Forberg J, Christian AR. Prevalence of Chlamydia specific antibodies among obstetric and gynecological outpatients in Gondar, north-west Ethiopia. Ethiop Med J. 2001 Oct; 39(4):293-303. PMID: 12380229.
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    324. Shannon E, Aseffa A, Pankey G, Sandoval F, Lutz B. Thalidomide's ability to augment the synthesis of IL-2 in vitro in HIV-infected patients is associated with the percentage of CD4+ cells in their blood. Immunopharmacology. 2000 Feb; 46(2):175-9. PMID: 10647875.
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    325. Kassu A, Aseffa A. Laboratory services in health centres within Amhara region, north Ethiopia. East Afr Med J. 1999 May; 76(5):239-42. PMID: 10750500.
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    326. Kotisso B, Aseffa A. Surgical wound infection in a teaching hospital in Ethiopia. East Afr Med J. 1998 Jul; 75(7):402-5. PMID: 9803631.
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    327. Aseffa A, Ishak A, Stevens R, Fergussen E, Giles M, Yohannes G, Kidan KG. Prevalence of HIV, syphilis and genital chlamydial infection among women in north-west Ethiopia. Epidemiol Infect. 1998 Mar; 120(2):171-7. PMID: 9593487.
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    328. Aseffa A, Gedlu E, Asmelash T. Antibiotic resistance of prevalent Salmonella and Shigella strains in northwest Ethiopia. East Afr Med J. 1997 Nov; 74(11):708-13. PMID: 9557442.
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    329. Aseffa A, Rahlenbeck S, Alemu S. Cryptococcosis in AIDS patients in Ethiopia. J Infect. 1997 Nov; 35(3):323-4. PMID: 9459420.
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    330. Aseffa A, Dietrich MA, Shannon EJ. Effect of thalidomide on apoptosis of lymphocytes and neutrophils. Immunopharmacol Immunotoxicol. 1997 Aug; 19(3):313-26. PMID: 9248860.
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    331. Aseffa A, Yohannes G. Antibiotic sensitivity of Staphylococcus aureus and Escherichia coli strains isolated in Gondar, Ethiopia. Trop Doct. 1997 Apr; 27(2):121-2. PMID: 9133810.
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    332. Rahlenbeck SI, Yohannes G, Molla K, Reifen R, Assefa A. Infection with HIV, syphilis and hepatitis B in Ethiopia: a survey in blood donors. Int J STD AIDS. 1997 Apr; 8(4):261-4. PMID: 9147161.
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    333. Gedlu E, Aseffa A. Campylobacter enteritis among children in north-west Ethiopia: a 1-year prospective study. Ann Trop Paediatr. 1996 Sep; 16(3):207-12. PMID: 8893950.
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    334. Kassu A, Aseffa A. Pattern of outpatient laboratory service consumption in a teaching hospital in Gondar, Ethiopia. East Afr Med J. 1996 Jul; 73(7):465-7. PMID: 8918011.
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    335. Aseffa A, Yohannes G. Antibiotic sensitivity pattern of prevalent bacterial pathogens in Gondar, Ethiopia. East Afr Med J. 1996 Jan; 73(1):67-71. PMID: 8625868.
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    336. Gebre N, Karlsson U, Jönsson G, Macaden R, Wolde A, Assefa A, Miörner H. Improved microscopical diagnosis of pulmonary tuberculosis in developing countries. Trans R Soc Trop Med Hyg. 1995 Mar-Apr; 89(2):191-3. PMID: 7539954.
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    337. Aseffa A, Desta Z, Tadesse I. Prescribing pattern of antibacterial drugs in a teaching hospital in Gondar, Ethiopia. East Afr Med J. 1995 Jan; 72(1):56-9. PMID: 7781559.
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    338. Miörner H, Gebre N, Karlsson U, Jönsson G, Macaden R, Wolde A, Assefa A. Diagnosis of pulmonary tuberculosis. Lancet. 1994 Jul 09; 344(8915):127. PMID: 7912359.
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    339. Aseffa A, Mengistu G, Tiruneh M. Salmonella newport: outbreak of food poisoning among college students due to contaminated undercooked eggs. Ethiop Med J. 1994 Jan; 32(1):1-6. PMID: 8187777.
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    340. Aseffa A. Viral diseases in Ethiopia: a review. East Afr Med J. 1993 Oct; 70(10):624-6. PMID: 8187657.
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    341. Aseffa A, Ahmed Zein Z, Stiehl P. Neoplasms in Gondar. Ethiop Med J. 1986 Jul; 24(3):133-6. PMID: 3487450.
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