selected scholarly activity
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journal articles
- Comparison of the Diagnostic Performances of Five Different Tests in Diagnosing Visceral Leishmaniasis in an Endemic Region of Ethiopia. Diagnostics. 14:163-163. 2024
- Characterizing Risk Factors for Hospitalization and Clinical Characteristics in a Cohort of COVID-19 Patients Enrolled in the GENCOV Study. Viruses. 15:1764-1764. 2023
- HLA Variation and SARS-CoV-2 Specific Antibody Response. Viruses. 15:906-906. 2023
- Global associations of key populations with HIV-1 recombinants: a systematic review, global survey, and individual participant data meta-analysis. Frontiers in Public Health. 11:1153638. 2023
- Prognostic Value of C-Reactive Protein in SARS-CoV-2 Infection: A Simplified Biomarker of COVID-19 Severity in Northern Ethiopia. Infection and Drug Resistance. Volume 16:3019-3028. 2023
- Inactivated SARS-CoV-2 vaccine for people with HIV. EClinicalMedicine. 45:101327-101327. 2022
- Longitudinal profile of antibody response to SARS-CoV-2 in patients with COVID-19 in a setting from Sub–Saharan Africa: A prospective longitudinal study. PLoS ONE. 17:e0263627-e0263627. 2022
- Performance of rapid rk39 tests for the diagnosis of visceral leishmaniasis in Ethiopia: a systematic review and meta-analysis. BMC Infectious Diseases. 21:1166. 2021
- Prognostic factors and outcomes of COVID-19 cases in Ethiopia: multi-center cohort study protocol. BMC Infectious Diseases. 21:956. 2021
- Utility of the Loop-Mediated Isothermal Amplification Assay for the Diagnosis of Visceral Leishmaniasis from Blood Samples in Ethiopia. American Journal of Tropical Medicine and Hygiene. 105:1050-1055. 2021
- Effect of co-infection with intestinal parasites on COVID-19 severity: A prospective observational cohort study. EClinicalMedicine. 39:101054-101054. 2021
- Clinical features and risk factors associated with morbidity and mortality among patients with COVID-19 in northern Ethiopia. International Journal of Infectious Diseases. 105:776-783. 2021
- Scaled testing for COVID-19 needs community involvement. Journal of Global Health. 11:03033. 2021
- Chronic Immune Activation and CD4+ T Cell Lymphopenia in Healthy African Individuals: Perspectives for SARS-CoV-2 Vaccine Efficacy. Frontiers in Immunology. 12:693269. 2021
- Effect of rK39 testing in guiding treatment initiation and outcome in patients with visceral leishmaniasis in Ethiopia: A prospective cohort study. PLoS ONE. 16:e0253303-e0253303. 2021
- Interrogating the Impact of Intestinal Parasite-Microbiome on Pathogenesis of COVID-19 in Sub-Saharan Africa. Frontiers in Microbiology. 12:614522. 2021
- Country Level Diversity of the HIV-1 Pandemic between 1990 and 2015. Journal of Virology. 95:e01580-e01520. 2020
- Global and regional epidemiology of HIV-1 recombinants in 1990–2015: a systematic review and global survey. The Lancet HIV. 7:e772-e781. 2020
- Immune recovery in HIV-1 infected patients with sustained viral suppression under long-term antiretroviral therapy in Ethiopia. PLoS ONE. 15:e0240880-e0240880. 2020
- Role of CD4/CD8 ratio on the incidence of tuberculosis in HIV-infected patients on antiretroviral therapy followed up for more than a decade. PLoS ONE. 15:e0233049-e0233049. 2020
- Global and regional molecular epidemiology of HIV-1, 1990–2015: a systematic review, global survey, and trend analysis. The Lancet Infectious Diseases. 19:143-155. 2019
- Identification and characterization of HIV positive Ethiopian elite controllers in both Africa and Israel. HIV Medicine. 20:33-37. 2019
- HPV genotype distribution among women with normal and abnormal cervical cytology presenting in a tertiary gynecology referral Clinic in Ethiopia. Infectious Agents and Cancer. 13:28. 2018
- The effect of HIV coinfection, HAART and TB treatment on cytokine/chemokine responses to Mycobacterium tuberculosis (Mtb) antigens in active TB patients and latently Mtb infected individuals. Tuberculosis. 96:131-140. 2016
- Virologic and immunologic outcome of HAART in Human Immunodeficiency Virus (HIV)-1 infected patients with and without tuberculosis (TB) and latent TB infection (LTBI) in Addis Ababa, Ethiopia. AIDS Research and Therapy. 10:18-18. 2013
- Analysis of Immune Responses against a Wide Range of Mycobacterium tuberculosis Antigens in Patients with Active Pulmonary Tuberculosis. Clinical and Vaccine Immunology. 19:1907-1915. 2012
- Population genetics of chronic kidney disease: The evolving story of APOL1. Journal of Nephrology. 25:603-618. 2012
- Serum chemokine profiles in visceral leishmaniasis, HIV and HIV/ visceral leishmaniasis co-infected Ethiopian patients.. Ethiopian Medical Journal. 49:179-186. 2011
- Timing of blood sampling for CD4 T-cell counting influences HAART decisions.. Ethiopian Medical Journal. 49:187-197. 2011
- Absence of APOL1 Risk Variants Protects against HIV-Associated Nephropathy in the Ethiopian Population. American Journal of Nephrology. 34:452-459. 2011
- Systemic FasL and TRAIL Neutralisation Reduce Leishmaniasis Induced Skin Ulceration. PLoS Neglected Tropical Diseases. 4:e844-e844. 2010
- Differences in HIV Type 1 RNA Plasma Load Profile of Closely Related Cocirculating Ethiopian Subtype C Strains: C and C′. AIDS Research and Human Retroviruses. 26:805-813. 2010
- Low-cost liquid medium forin vitrocultivation ofLeishmaniaparasites in low-income countries. Global Health Action. 2:2046-2046. 2009
- African AIDS Vaccine Programme for a Coordinated and Collaborative Vaccine Development Effort on the Continent. PLoS Medicine. 5:e236-e236. 2008
- Threshold survey evaluating transmitted HIV drug resistance among public antenatal clinic clients in Addis Ababa, Ethiopia. Antiviral Therapy. 13:89-94. 2008
- HIV-1 Subtype C Gag-Specific T-Cell Responses in Relation to Human Leukocyte Antigens in a Diverse Population of HIV-Infected Ethiopians. Journal of Acquired Immune Deficiency Syndromes (1999). 45:389-400. 2007
- Assessment of the implementation of HIV-rapid test kits at different levels of health institutions in Ethiopia.. Ethiopian Medical Journal. 45:293-299. 2007
- Temporal trends in the incidence of HIV infection in antenatal clinic attendees in Addis Ababa, Ethiopia, 1995–2003. Journal of Internal Medicine. 261:132-137. 2007
- Stable pattern of HIV-1 subtype C Gag-specific T-cell responses coincides with slow rate of CD4 T-cell decline in HIV-infected Ethiopians. AIDS. 21:369-372. 2007
- Neurological evaluation of untreated human immunodeficiency virus infected adults in Ethiopia. Journal of NeuroVirology. 13:67-72. 2007
- Intestinal Microsporidiosis in Diarrheal Patients Infected with Human Immunodeficiency Virus-1 in Addis Ababa, Ethiopia. Japanese Journal of Infectious Diseases. 59:306-310. 2006
- Tuberculin Skin Test Conversion and Reactivity Rates among Adults with and without Human Immunodeficiency Virus in Urban Settings in Ethiopia. Clinical and Vaccine Immunology. 13:784-789. 2006
- Kinetics of sedimentation rate, viral load and TNF-α in relation to HIV co-infection in tuberculosis. Transactions of the Royal Society of Tropical Medicine and Hygiene. 100:483-488. 2006
- Characterization of Peripheral Blood Lymphocyte Subsets in Patients with AcutePlasmodium falciparumandP. vivaxMalaria Infections at Wonji Sugar Estate, Ethiopia. Clinical and Vaccine Immunology. 13:376-379. 2006
- Reverse transcriptase activity for quantitation of HIV-1 subtype C in plasma: Relation to RNA copy number and CD4 T-cell count. Journal of Medical Virology. 78:161-168. 2006
- Prevalence and incidence of, and risk factors for, HIV-1 infection among factory workers in Ethiopia, 1997-2001.. Journal of Health, Population and Nutrition. 23:358-368. 2005
- Surveillance technology for HIV-1 subtype C in Ethiopia: An env-based NASBA molecular beacon assay to discriminate between subcluster C and C′. Journal of Virological Methods. 130:22-29. 2005
- Alternative Approach to Blood Screening Using the ExaVir Reverse Transcriptase Activity Assay. Current HIV Research. 3:371-376. 2005
- Low CD4 T Cell Counts before HIV‐1 Seroconversion Do Not Affect Disease Progression in Ethiopian Factory Workers. Journal of Infectious Diseases. 192:739-748. 2005
- Evidence of Genetic Variability of Human Immunodeficiency Virus Type 1 in Plasma and Cervicovaginal Lavage in Ethiopian Women Seeking Care for Sexually Transmitted Infections. AIDS Research and Human Retroviruses. 21:649-653. 2005
- Expression of Chemokine Receptors CCR5 and CXCR4 on CD4+ T Cells and Plasma Chemokine Levels During Treatment of Active Tuberculosis in HIV-1-Coinfected Patients. Journal of Acquired Immune Deficiency Syndromes (1999). 39:265-271. 2005
- Detection of intestinal microsporidiosis in diarrhoeal patients infected with the human immunideficiency virus (HIV-1) using PCR and Uvitex-2B stain.. Ethiopian Medical Journal. 43:97-101. 2005
- Determinants of CD4 Counts Among HIV-Negative Ethiopians: Role of Body Mass Index, Gender, Cigarette Smoking, Khat (Catha Edulis) Chewing, and Possibly Altitude?. Journal of Clinical Immunology. 25:127-133. 2005
- IL-8 Increases Transmission of HIV Type 1 in Cervical Explant Tissue. AIDS Research and Human Retroviruses. 21:228-233. 2005
- Drug susceptibility of Mycobacterium tuberculosis in HIV-infected and -uninfected Ethiopians and its impact on outcome after 24 months of follow-up.. International Journal of Tuberculosis and Lung Disease. 8:1388-1391. 2004
- Risk factors associated with failure of syndromic treatment of sexually transmitted diseases among women seeking primary care in Addis Ababa. Sexually Transmitted Infections. 80:392-394. 2004
- Transmission of Herpes Simplex Virus Type 2 among Factory Workers in Ethiopia. Journal of Infectious Diseases. 190:365-372. 2004
- Development of a Nucleic Acid Sequence-Based Amplification Assay That Uses gag -Based Molecular Beacons To Distinguish between Human Immunodeficiency Virus Type 1 Subtype C and C′ Infections in Ethiopia. Journal of Clinical Microbiology. 42:1534-1541. 2004
- Performance of routine syphilis serology in the Ethiopian cohort on HIV/AIDS. Sexually Transmitted Infections. 80:96-99. 2004
- The impact of syndromic treatment of sexually transmitted diseases on genital shedding of HIV-1. AIDS. 18:781-785. 2004
- Immunophenotyping of blood lymphocytes at birth, during childhood, and during adulthood in HIV-1-uninfected Ethiopians. Clinical Immunology. 109:338-346. 2003
- HIV prevalence in 72 000 urban and rural male army recruits, Ethiopia. AIDS. 17:1835-1840. 2003
- Development of research capability in Ethiopia: the Ethio-Netherlands AIDS research project (ENARP): 1994-2002, achievements, scientific findings and project goals.. Ethiopian Medical Journal. 41 Suppl 1:11-23. 2003
- Evidence of changes in sexual behaviours among male factory workers in Ethiopia.. Ethiopian Medical Journal. 41 Suppl 1:51-59. 2003
- Knowledge and attitudes towards antiretroviral therapy among factory workers participating in a cohort on HIV and AIDS, Addis Ababa, Ethiopia.. Ethiopian Medical Journal. 41 Suppl 1:75-87. 2003
- Low CD4+ T-cell count and high HIV viral load precede the development of tuberculosis disease in a cohort of HIV-positive Ethiopians.. Ethiopian Medical Journal. 41 Suppl 1:67-73. 2003
- Simple markers for initiating antiretroviral therapy among HIV-infected Ethiopians.. Ethiopian Medical Journal. 41 Suppl 1:61-65. 2003
- Simple markers for initiating antiretroviral therapy among HIV-infected Ethiopians. AIDS. 17:815-819. 2003
- Role of incidental and/or cured intestinal parasitic infections on profile of CD4+ and CD8+ T cell subsets and activation status in HIV-1 infected and uninfected adult Ethiopians. Clinical and Experimental Immunology. 132:113-119. 2003
- Low CD4+ T-cell count and high HIV viral load precede the development of tuberculosis disease in a cohort of HIV-positive ethiopians.. International Journal of Tuberculosis and Lung Disease. 7:110-116. 2003
- Evidence of changes in sexual behaviours among male factory workers in Ethiopia. AIDS. 17:223-231. 2003
- Alteration of Fas and Fas ligand expression during human visceral leishmaniasis. Clinical and Experimental Immunology. 130:307-313. 2002
- Treatment of Intestinal Worms Is Associated With Decreased HIV Plasma Viral Load. Journal of Acquired Immune Deficiency Syndromes (1999). 31:56-62. 2002
- Primary HIV-1 subtype C infection in Ethiopia. Journal of Acquired Immune Deficiency Syndromes (1999). 30:463-470. 2002
- Primary HIV-1 Subtype C Infection in Ethiopia. Journal of Acquired Immune Deficiency Syndromes (1999). 30:463-470. 2002
- Delayed clearance of Plasmodium falciparum in patients with human immunodeficiency virus co-infection treated with artemisinin.. Ethiopian Medical Journal. 40 Suppl 1:17-26. 2002
- Evaluation of rapid assays for screening and confirming HIV-1 infection in Ethiopia.. Ethiopian Medical Journal. 40 Suppl 1:27-36. 2002
- Low absolute CD4 counts in Ethiopians.. Ethiopian Medical Journal. 40 Suppl 1:11-16. 2002
- Herpes Simplex Virus Type 2 Seropositivity Among Urban Adults in Africa. Sexually Transmitted Diseases. 29:175-181. 2002
- Immune Responses to the Mycobacterium tuberculosis -Specific Antigen ESAT-6 Signal Subclinical Infection among Contacts of Tuberculosis Patients. Journal of Clinical Microbiology. 40:704-706. 2002
- Induction and abrogation of LACK reactive cells in the evolution of human leishmaniasis. Clinical and Experimental Immunology. 124:255-261. 2002
- Indeterminate Human Immunodeficiency Virus Western Blot Profiles in Ethiopians with Discordant Screening-Assay Results. Clinical and Vaccine Immunology. 9:160-163. 2002
- Effect of deworming on human T cell responses to mycobacterial antigens in helminth-exposed individuals before and after bacille Calmette–Guérin (BCG) vaccination. Clinical and Experimental Immunology. 123:219-225. 2001
- Distribution of Lymphocyte Subsets in Healthy Human Immunodeficiency Virus-Negative Adult Ethiopians from Two Geographic Locales. Clinical and Vaccine Immunology. 8:1171-1176. 2001
- Emerging Leishmania/HIV co-infection in Africa. Medical Microbiology and Immunology. 190:65-67. 2001
- Helminths, Human Immunodeficiency Virus and Tuberculosis. Infectious Diseases. 33:568-571. 2001
- Update on HIV/AIDS research in Ethiopia - HIV-1 seroprevalence and subtypes in police recruits from Afar Regional state. Ethiopian Medical Journal. 39:83-84. 2001
- HIV-1 alters T helper cytokines, interleukin-12 and interleukin-18 responses to the protozoan parasite Leishmania donovani. AIDS. 14:921-929. 2000
- HIV viral load and response to antileishmanial chemotherapy in co-infected patients. AIDS. 13:1921-1925. 1999
- Role ofLeishmania donovaniand Its Lipophosphoglycan in CD4+T-cell Activation-Induced Human Immunodeficiency Virus Replication. Infection and Immunity. 67:5258-5264. 1999
- Leishmania–HIV Interaction: Immunopathogenic Mechanisms. Trends in Parasitology. 15:182-187. 1999
- Increase in the incidence of multidrug-resistant salmonellae in Ethiopia. Journal of Antimicrobial Chemotherapy. 41:421-423. 1998
- Live and Killed Human Immunodeficiency Virus Type-1 Increases the Intracellular Growth of Leishmania donovani in Monocyte-derived Cells. Infectious Diseases. 30:29-34. 1998
- Ethiopian visceral leishmaniasis patients co-infected with human immunodeficiency virus. Transactions of the Royal Society of Tropical Medicine and Hygiene. 89:205-207. 1995
- HIV‐1 Inhibits Leishmania‐lnduced Cell Proliferation but not Production of Interleukin‐6 and Tumour Necrosis Factor Alpha. Scandinavian Journal of Immunology. 39:380-386. 1994
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preprints