Josh Koenig

Josh Koenig is an Assistant Professor in the Department of Medicine at McMaster University, focusing on adaptive immunity, allergy, cellular immunology, and humoral immunology. His work bridges fundamental immunology with clinical applications to address challenges in food allergy and respiratory immunology.

Research Interests: Dr. Koenig investigates B cell memory in allergic responses, IgE dynamics, and microbial regulation of immunity. His studies explore how commensal organisms and environmental factors (e.g., cigarette smoke) influence Th2 immunity and allergen immunotherapy. He co-led the discovery of a new cell type that remembers allergies, with implications for transformative treatments.

Recent Publications highlight his work on disease tolerance in intestinal infections, microbial metabolism of allergens, IgG1-independent memory, and novel imaging techniques for immune cell analysis. His teaching roles include courses in cell biology and immunology (2015–2025). Dr. Koenig’s lab collaborates with ALK-Abello A/S and utilizes mucosal vaccine delivery strategies against SARS-CoV-2.