Vasja Vehovar, PhD, a member of the Centre for Social Informatics, participated in "the first nationwide population study using a probability-based sample to assess active severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, combined with a longitudinal follow-up of the entire cohort over the next 6 months." Based on the research, the article "Low prevalence of active COVID -19 in Slovenia: a nationwide population study of a probability-based sample" was published in the journal Clinical Microbiology and Infection.