1. History of previous COVID-19 infection 2. Positive result of COVID-19 rapid antigen test (tested upon recruitment prior to vaccination) 3. Uncontrolled disease activity 4. Non-dermatologic immune-mediated diseases 5. Congenital or acquired immunodeficiency syndrome 6. Cancer 7. Pregnant women 8. Allergy to components of tozinameran 9. Inability to give written informed consent to participate in the study

1. History of previous COVID-19 infection 2. Positive result of COVID-19 rapid antigen test (tested upon recruitment prior to vaccination) 3. Uncontrolled disease activity 4. Non-dermatologic immune-mediated diseases 5. Congenital or acquired immunodeficiency syndrome 6. Cancer 7. Pregnant women 8. Allergy to components of tozinameran 9. Inability to give written informed consent to participate in the study