A case of de novo annular-plaque type psoriasis following Oxford-AstraZeneca COVID-19 vaccination.

Background There have been increasingly reported cases of new-onset or aggravation of pre-existing dermatoses after the implementation of COVID-19 vaccination. Case Presentation An elderly male presented with multiple annular scaly plaques all over the body two weeks following administration of the first dose of Oxford-AstraZeneca COVID-19 vaccine. The lesions further aggravated after taking the second dose of the vaccine. The clinical and histopathology features were suggestive of annular plaque psoriasis. Conclusion We report this first case of de novo plaque psoriasis following the Oxford-AstraZeneca COVID-19 vaccine, and it signifies a potential side effect of autoimmune reactivation after COVID vaccination.