Our Team

Dr. Rob Kozak, PI

Dr. Kozak completed his PhD in microbiology and immunology at McGill University. Following this, he completed postdoctoral fellowships in viral hepatitis and zoonotic viruses at McGill and the Ontario Veterinary College, University of Guelph, respectively. He also trained at the Special Pathogens Program at the National Microbiology Laboratory in Winnipeg, where he studied viral hemorrhagic fevers and zoonotic viruses.

Currently, Dr. Kozak is a clinical microbiologist in the Shared Hospital Laboratory at Sunnybrook Health Sciences Centre, and holds an appointment at the University of Toronto. His research program focuses on SARS-CoV-2, Mpox virus, and other emerging viral infections. This includes the development of diagnostics, the evaluation of vaccines, and therapeutics.

Kayla Gaete, Lab Manager

I earned my Bachelor of Science degree from Queen's University, where I focused on biology and life sciences and received my Clinical Research certificate from McMaster University. Over the years, I gained significant laboratory experience working in a COVID-19 lab during the pandemic, where I processed samples and contributed to research efforts. Currently, I am the laboratory manager for the Kozak lab. In this role, I oversee lab maintenance, including managing protocols, documentation, and processing orders. I also handle clinical research and ethics board applications, train and mentor students, and actively contribute to ongoing research projects.

I have worked on several research projects, including a retrospective chart review focused on Creutzfeldt-Jakob disease, conducted across three tertiary care centers in Ontario. Additionally, I helped conduct a study monitoring cellular immune responses to COVID-19 vaccination in patients with Chronic Kidney Disease to better understand immune function in this vulnerable group. Currently, I am involved in a study examining the genomic epidemiology of five different respiratory viruses over the course of one year, aiming to link viral genomic variations to virulence and disease outcomes.

Maya Naghibosadat, Project Coordinator

As a scientist who has international and Canadian post graduate training in biomedical research, I bring a passion for science, combined with strong interpersonal and communication teamwork skills, solid time management and organizational skills, and the ability to solve complex problems and thoroughly attend to detail.

Dr. Jacklyn Hurst, Post-Doc

I completed my PhD in Microbiology and Immunology from Western University where I studied different surface markers on the bacteria Streptococcus pyogenes and how they contribute to nasal and skin infections in mice.

As a current post-doctoral fellow in the Kozak lab, emerging viruses are our specialty. I have had the opportunity to work with the Canadian-based pharmaceutical company Providence Therapeutics in studying the efficacy of a vaccine against SARS-CoV-2 that expresses additional antigens along with spike in a mRNA booster regimen. In this work, I became proficient at working in both the in vitro and in vivo BSL3 facilities at the University of Toronto. My projects have shifted now to focus on Mpox (formerly monkeypox virus) since the largest known human outbreak of Mpox to date emerged in 2022. We have been studying a cohort of participants in Toronto that were diagnosed with Mpox disease during this outbreak and have recently published our findings looking at the longitudinal detection of Mpox DNA from multiple anatomical sites in these participants. My current focus is now determining whether tecovirimat (TPOXX) treatment had an effect on the duration of Mpox shedding in lesion swab samples from this cohort, as well as characterizing both the virus and host transcriptomics in these lesion swab samples.

Dr. Natalie Deschenes, Post-Doc

I completed my PhD in Neuroscience from Queen’s University in 2023. Throughout my PhD, I worked on optimizing a gene therapy for a rare neurodegenerative disease, called AB-Variant GM2 Gangliosidosis. During my doctoral studies, my research focused on animal model development, vector optimization and dose-responses.

Currently, I am a postdoctoral fellow in the Kozak Lab at Sunnybrook Research Institute. Here, I have shifted my research focus into infectious diseases and vaccine development. My current projects include investigating the pathogenesis of human parainfluenza viruses (HPIVs) in a mouse model, evaluating cross-protection from prior exposure to other viruses and previous vaccination in the Paramyxovirus family, and advancing pre-clinical research on pan-viral vaccines. Additionally, I am involved in studying anti-viral resistance mutations in SARS-CoV-2 through whole genome sequencing.

Mary Addo, MSc Candidate

I recently graduated from the University of Toronto with an HBSc of Science majoring in Genome Biology with a double minor in Immunology and Physiology. I began my time at the Kozak lab as a summer student analyzing differential gene expression between long-COVID and non-long COVID patients. I then continued as an undergraduate research student and completed this research project.

I am currently completing my Master’s degree in Applied Immunology at the University of Toronto with a focus on oncolytic viral therapy and acute myeloid leukemia (AML). We are investigating the susceptibility of cancer cell lines and primary patient samples to viruses including vaccinia as well as live attenuated viruses.


Past Lab Members:

George Giorgi Babuadze: Post-Doc

Lerato Mpye: Post-Doc

Yujia Feng : Undergraduate Research Student

Ruth Igumbor: Summer Research Student