Relevance. The spread of coronavirus infection is accompanied by the dissemination of information messages in the form of radical beliefs affecting people’s behaviour. The aim of the study was to reveal the relationship between beliefs about coronavirus and its treatment, magical thinking, anxiety and the protective behaviour against to the pandemic. Methods. 402 adults aged 18–64 years old filled checklist including beliefs about causes, manifestations, consequences and control of the pandemic, Illness and Treatment Locus of Control Scale, Treatment Self-Efficacy Scale, Magical Ideation Scale as well as scales measuring anxiety and protective behaviour in pandemic and monitoring of information about coronavirus. Results. Factor analysis revealed three groups of radical beliefs about coronavirus: negligence as the cause of the occurrence and spread of coronavirus, a particular meaning of morbidity and negative consequences of the pandemic. Conclusion. Belief in the negligence as a cause of coronavirus was more typical for people with an intrinsic locus of causes of the causes of illness but extrinsic locus of control of treatment and for those who were prone to protective behaviour in the pandemic. Belief about the particular meaning of coronavirus was associated with the magical thinking, the intrinsic locus of control of the causes of illness, less anxiety about infection and poorer compliance with self-isolation. Radical beliefs about the consequences of the pandemic were related to more frequent monitoring of the information about the pandemic, extrinsic locus of control of treatment but intrinsic locus of control of causes of illness and a pronounced anxiety regarding future negative consequences of the pandemic.