5 Key Takeaways

• 1

  COVID-19 infections are linked to a 50.8% increased risk of autoimmune blistering diseases (AIBD), particularly pemphigus.

• 2

  COVID-19 vaccination is associated with nearly halved risk of AIBD, with the most significant reduction observed for pemphigus.

• 3

  Patients with prior COVID-19 infections have over a threefold increased risk of AIBD compared to vaccinated individuals.

• 4

  The study utilized TriNetX, accessing over 112 million electronic health records to assess AIBD incidence.

• 5

  The study's retrospective design has limitations, including potential underreporting of COVID-19 cases and misclassification of AIBD.