Table 1.

Table representing inclusion and exclusion criteria for the study.

Inclusion	Exclusion
•Adults (over 18 years old) of all genders •Residence in Wielkopolska voivodeship, Poland	•Diagnosed SARS-CoV-2 infection •SARS-CoV 2 Infection symptoms (high fever, cough, runny nose, dyspnoea) • Direct contact with a person within 14 days before the first sample collection o diagnosed withSARS-CoV-2 infection o quarantined o returned from abroad •Autoimmunological disease •Ongoing immunosuppresive treatment