This catalogue documents a multi-year art-science project called Immune Nations, produced on the occasion of its exhibition at the McMaster Museum of Art in Hamilton, Ontario, Canada. Initiated in 2014 and co-led by Steven Hoffman (York University), Sean Caulfield (University of Alberta), and Natalie Loveless (University of Alberta), Immune Nations brought together scientists, policy experts, academic scholars, and artists to work on an interdisciplinary and collaborative research-creation project tackling complex issues related to the use and distribution of vaccines in the world today. The project launched at the Trondheim Academy of Fine Art's Galeri KiT (2017), moved to the Joint United Nations Programme on HIV/AIDS (UNAIDS) headquarters building in Geneva, Switzerland (2017), and concluded at the McMaster Museum of Art at McMaster University (2021). Contributors: Jesper Alvaer, Sean Caulfield, Timothy Caulfield, Susan Colberg, Patrick Fafard, Caitlin Fisher, Steven Hoffman, Johan Holst, Annemarie Hou, Alison Humphrey, Jude Kang Hwirin, Rachelle Viader Knowles, Kaisu Koski, Vicki Sung-yeon Kwon, Natalie Loveless, Patrick Mahon, Tegan Moore, Carol Podedworny, Sergio Serrano, Florian Schneider, Lathika Sritharan, Mkrtich Tonoyan, Lalaine Ulit-Destajo, Susan Rogers Van Katwyk, Morgan Wedderspoon, Arman Yeritsyan.