Olga (Olya) Morozova is an Assistant Professor of Public Health Sciences. She is an infectious disease epidemiologist and a public health modeler. Her research focuses on interaction between HIV and substance use disorders, as well as infectious disease transmission more broadly. Dr. Morozova conducted studies to evaluate strategies to expand access to and uptake of opioid agonist treatment in Ukraine. She piloted studies of primary healthcare-based integrated care for people with opioid use disorder in Ukraine and conducted model-based policy and cost-effectiveness evaluation of treatment scale-up strategies. Dr. Morozova's COVID-19 modeling work during the pandemic involved novel methods to incorporate behavior change metrics in traditional infection transmission modeling. Results of her modeling work were used to support decision-makers at Connecticut's governor’s office. Dr. Morozova is also interested in quantitative methods in infectious disease epidemiology, in particular causal inference in the presence of contagion. Her work contributed to a better understanding of the properties of traditional vaccine effect estimates under various study designs.
Yale University
New Haven, CT, USA
Ph.D. - Epidemiology
2018
Kyiv National University
Kyiv, Ukraine
M.S. - Mathematical Modeling in Social Sciences
2005
Kyiv National University
Kyiv, Ukraine
B.S. - Applied Mathematics
2003
HIV Viral Rebound on Dolutegravir, Lopinavir, and Efavirenz: National Program Data Analysis From Ukraine.
HIV Viral Rebound on Dolutegravir, Lopinavir, and Efavirenz: National Program Data Analysis From Ukraine. J Acquir Immune Defic Syndr. 2025 Aug 01; 99(4):395-404.
PMID: 40193057
?Morphological and molecular re-assessment of European and Levantine species of the genus Hortiboletus (Boletaceae).
?Morphological and molecular re-assessment of European and Levantine species of the genus Hortiboletus (Boletaceae). IMA Fungus. 2025; 16:e144731.
PMID: 40546449
SARS-COV-2 re-infection and incidence of post-acute sequelae of COVID-19 (PASC) among essential workers in New York: a retrospective cohort study.
SARS-COV-2 re-infection and incidence of post-acute sequelae of COVID-19 (PASC) among essential workers in New York: a retrospective cohort study. Lancet Reg Health Am. 2025 Feb; 42:100984.
PMID: 39866362
Design and implementation of a Type-2 hybrid, prospective randomized trial of opioid agonist therapies integration into primary care clinics in Ukraine.
Design and implementation of a Type-2 hybrid, prospective randomized trial of opioid agonist therapies integration into primary care clinics in Ukraine. Contemp Clin Trials. 2024 Nov; 146:107690.
PMID: 39265780
Characterization of Change in Cognition Before and After COVID-19 Infection in Essential Workers at Midlife.
Characterization of Change in Cognition Before and After COVID-19 Infection in Essential Workers at Midlife. Am J Med Open. 2024 Dec; 12:100076.
PMID: 39498311
"Will you need this health at all? Will you be alive?": using the bioecological model of mass trauma to understand HIV care experiences during the war in Ukraine.
"Will you need this health at all? Will you be alive?": using the bioecological model of mass trauma to understand HIV care experiences during the war in Ukraine. J Int AIDS Soc. 2024 Jul; 27 Suppl 3:e26307.
PMID: 39030874
Patterns of daily oral HIV PrEP adherence among people who inject drugs in Ukraine: an analysis of biomarkers.
Patterns of daily oral HIV PrEP adherence among people who inject drugs in Ukraine: an analysis of biomarkers. J Int AIDS Soc. 2024 Jul; 27 Suppl 3:e26319.
PMID: 39030884
Prevalence and Correlates of Depression and Bipolar Disorder Among Patients Maintained on Methadone and Buprenorphine in Ukraine.
Prevalence and Correlates of Depression and Bipolar Disorder Among Patients Maintained on Methadone and Buprenorphine in Ukraine. Int J Ment Health Addict. 2024 Jun 27.
PMID: 40823203
Modes of HIV transmission among young women and their sexual partners in Ukraine.
Modes of HIV transmission among young women and their sexual partners in Ukraine. PLoS One. 2024; 19(6):e0305072.
PMID: 38923979
Self-assembling amyloid-like nanostructures from SARS-CoV-2 S1, S2, RBD and N recombinant proteins.
Self-assembling amyloid-like nanostructures from SARS-CoV-2 S1, S2, RBD and N recombinant proteins. Arch Biochem Biophys. 2024 02; 752:109843.
PMID: 38072298