ABSTRACT
Schamberg's disease is one of a group of pigmented purpura diseases. We report a 43‐year‐old woman, who developed Schamberg’s disease after SARS‐CoV‐2 vaccination. Three days after vaccination, a purpuric eruption occurred on the lower extremities, extending to the buttocks, and subsided in 4 weeks. No recurrence was observed thereafter. It is suggested that the vaccination triggered the development of the eruption, which was not merely coincidental. SARS‐CoV‐2 vaccination may stimulate a certain population of T cells, resulting in the development of pigmented purpuric dermatoses.
ABSTRACT
To protect against COVID-19, SARS-CoV-2 vaccines have been widely used. Besides anaphylaxis, some less severe adverse effects may occur at higher frequencies. It remains unclear whether present or past histories of allergic diseases exert effects on local and systemic reactions. We conducted a questionnaire survey among workers in our hospital. We analyzed the adverse effects occurring after the first and second doses of the Pfizer-BioNTech vaccine in 955 subjects. The presence or absence of local injection reactions and systemic reactions (headache, fatigability, fever, muscle pain, and joint pain) was questioned. The intensities of these reactions were graded on a scale of 0-4 (except fever) or 0-2 (fever). The allergic diseases that we focused on were bronchial asthma, atopic dermatitis, food allergy, pollinosis, and hand eczema. For the systemic reactions, fatigability after the first dose tended to be more severe in the bronchial asthma than in the non-allergic group. Headache, joint pain, and fever tended to be more severe in the food allergy than in the non-allergic group after the second dose. For the local skin reactions, atopic dermatitis subjects tended to show rather less severe local skin reactions after the second dose. The results contribute to the guidelines for the care of individuals with different allergy histories, so that they may safely receive their vaccine.