Vincenzo Picone, Fabrizio Martora, Gabriella Fabbrocini, Laura Marano
Both of them (Pfizer and Moderna) can be associated with cutaneous adverse effects. Several cutaneous reactions to Moderna (83%) or Pfizer (17%) COVID-19 vaccines were reported by McMahon et al. for 414 unique patients. The most common cutaneous reaction was delayed large local reaction, followed by local injection site reactions, urticaria, morbilliform eruptions, erythromelalgia, and pernio/chilblains. We report two cases of “COVID arm”: a localized erythematous reaction at the injection site after the first administration of Moderna COVID- 19 vaccine.