Sixteen patients at a private dermatology practice in Denmark developed delayed-onset urticaria after receiving COVID-19 vaccine boosters between February and June 2022, according to a letter published in Clinical and Translational Allergy.
Patients also developed symptomatic dermographism after receiving the Pfizer-BioNTech and Moderna boosters, according to Jakob Lillemoen Drivenes, MD, of Vestfold Hospital Trust in Tonsberg, Norway, and colleagues.
“In private dermatology practice, we noticed an increasing number of patients with newly developed or aggravated urticarial reactions and