1. Aged equal to or more than 18 years 2. Diagnosed with psoriasis or autoimmune bullous diseases 3. Completed two-doses of the primary vaccine series and the third booster dose lasted for more than three months 4. Agree to receive the fourth COVID-19 vaccine dose as tozinameran

1. Aged equal to or more than 18 years 2. Diagnosed with psoriasis or autoimmune bullous diseases 3. Completed two-doses of the primary vaccine series and the third booster dose lasted for more than three months 4. Agree to receive the fourth COVID-19 vaccine dose as tozinameran