The study of human-non-human relations, within a conceptual framework that decentres human exceptionalism (Menon and Karthik, 2017) and challenges the nature-society separation with its legacy of presenting the natural world as somehow 'out there', has gained traction within the social sciences and humanities (Büscher, 2022;Greco, 2022;Haraway, 2016;Whatmore, 2006;. This body of work has started to reconceive ecological politics through mapping out how humans are situated in complex social relations with biological and physical worlds. Lively discussions have ensued, foregrounding multispecies geographies (Gillespie and Collard, 2015), vitalist ecologies (Bennett, 2010;Braun, 2015), and post-humanist theorising of more-than-human entanglements (Anderson, 2014;Wolfe, 2010). Within this field, the study of human-non-human relations has been dominated by well-established cultural interest areas; for example, animals, foodstuff and plants. There is also work that engages with non-human aspects of planetary life that is harder to grapple with due to the temporality, spatiality and inhuman materiality of multispecies worlds, such as the geological (Clark and Yusoff, 2017). Social studies of the microbial sit between these points of human-nonhuman scholarship. Viruses, bacteria, archaea, fungi and protists are methodologically trickier to study within social relations as they are challenging to witness as material, recognisable everyday objects in relation to human practices. And yet the COVID-19 pandemic demonstrated how the very real threat of infection was accompanied by multifarious imaginings of microbial agency and risk that radically changed everyday life.