[Insights from creating a covid-19 biobank in Sweden]

Biobanks function as important repositories for biological samples collected in health care. As such, they play an important role in enabling important medical research over time. In response to the covid-19 outbreak in Stockholm, Sweden, a group of specialists in intensive care, infectious diseases, and clinical microbiology, as well as scientists with experience in immunology and viral diseases, rapidly gathered. The group discussed how to cope with the prevailing situation, both from a clinical and a research-oriented perspective. Among strategies decided was an attempt to rapidly organize a biological sample collection organized in a biobank for immediate but also long-term research purposes. Given the pandemic conditions with a new virus, the biobank project and associated immediate immunological research tasks turned out to be challenging. In the following months, many lessons were learned from the systematic collection of clinical samples and associated immunological research. Many insights were gained of value for future pandemic preparedness.