COVID-testing was central to control the spread of infection in Denmark. Drawing on ethnographic fieldwork, we show that testing was not just a diagnostic sign; it was also a biosocial practice that enacted a public health morality, centered on responsibility, care, and belonging. We argue that testing led to a public healthicization of everyday life, as it moralized individual and collective behavior and created a moral divide between the tested and the untested. By attending to COVID-19 testing as a material-semiotic sign, we show how testing is embedded within a particular cultural and moral framework of the Danish welfare state.
Keywords: COVID-19; Denmark; ethnography; pandemic; public health morality; testing.