Dawit Wolday - McMaster Experts

Affiliations

Faculty of Health Sciences, McMaster University
Associate Professor, Biochemistry & Biomedical Sciences, Faculty of Health Sciences

Research Areas

Global health (RA)
Immunogenetics (including genetic immunology) (RA)
Immunological and bioassay methods (RA)
Immunology (RA)
Infectious diseases (RA)

Scholarly Activity in McMaster Experts

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selected scholarly activity

journal articles
- Prevalence, trends, and distribution of hepatitis C virus among the general population in sub-Saharan Africa: A systematic review and meta-analysis.. Liver International. 44:3238-3249. 2024
- Diversity of culturable bacterial isolates and their potential as antimicrobial against human pathogens from Afar region, Ethiopia.. Microbiology spectrum. 12:e0181024. 2024
- Molecular epidemiology of hepatitis B, hepatitis C, and HIV-1 co-infections in Ethiopia: Implications for disease burden and intervention strategies. Acta Tropica. 257:107318-107318. 2024
- Simplified molecular diagnosis of visceral leishmaniasis: Laboratory evaluation of miniature direct-on-blood PCR nucleic acid lateral flow immunoassay. PLoS Neglected Tropical Diseases. 18:e0011637-e0011637. 2024
- COVID-19 vaccine reactogenicity among participants enrolled in the GENCOV study. Vaccine. 42:2733-2739. 2024
- Comparison of the Diagnostic Performances of Five Different Tests in Diagnosing Visceral Leishmaniasis in an Endemic Region of Ethiopia. Diagnostics. 14:163-163. 2024
- Longitudinal wastewater-based surveillance of SARS-CoV-2 during 2023 in Ethiopia. Frontiers in Public Health. 12:1394798. 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
preprints