Generalized bullous fixed drug eruption after Oxford-AstraZeneca (ChAdOx1 nCoV-19) vaccination

Rapidly progressing generalized bullous fixed drug eruption after the first dose of COVID-19 messenger RNA vaccination

Generalized bullous fixed drug eruption (GBFDE) is a rare type of life-threatening severe cutaneous adverse reaction that is considered a medical emergency because of its potential lethality. Currently, only a few cases of bullous adverse reactions have been reported after coronavirus disease 2019 (COVID-19) vaccination. We describe a patient with distinct clinical, histopathological, and immunological findings that are consistent with severe GBFDE, after Pfizer messenger RNA COVID-19 vaccination. An 83-year-old man presented with a fever and well-demarcated multiple erythematous patches that occurred only 4 h after receiving the first dose of COVID-19 Pfizer vaccination. Over the next few days, the patches became generalized and turned into blisters covering approximately 30% of the body surface. The patient was started on intravenous methylprednisolone and oral cyclosporine. There were no additional blistering lesions after 10 days of treatment, prompting a gradual dose reduction. Our case suggests that a stepwise vaccination adhering to the standard dosing schedule should be warranted with close monitoring for possible significant side effects.

Generalized fixed drug eruption following Pfizer-BioNtech COVID-19 vaccination

Fixed drug eruption is a cutaneous drug reaction which recurs at the same site when the individual is exposed to the causative drug, characterized by single or multiple round sharply demarcated erythematous-to-violaceous patches. Here, we report a patient with generalized non-bullous fixed drug eruption following mRNA-based Pfizer-BioNTech COVID-19 vaccine.

Fixed drug eruption after the Sinopharm COVID‐19 vaccine

After coronavirus disease 2019 (COVID‐19) became widespread around the world, several vaccines have been developed with variable efficacy and potency and based on different platforms to control the pandemic. One of these vaccines is Sinopharm (BBIBP‐CorV), which is an inactivated virus that was released by Sinopharm's Beijing institute in the summer of 2020. The most commonly reported side effects of the Sinopharm vaccine have included pain at the injection site, muscle pain, headache and fatigue. Dermatological reactions are also reported as less common and were mainly local injection site reactions. Fixed drug eruption (FDE) is a rare and unusual adverse effect and accounts for less than 1% of all severe acute respiratory syndrome coronavirus 2 vaccine‐related cutaneous manifestations. FDE has not been reported following the COVID‐19 inactivated vaccine. Here, we describe a rare case of FDE following the administration of the first shot of the Sinopharm vaccine.

Global prevalence and clinical manifestations of cutaneous adverse reactions following COVID-19 vaccination: A systematic review and meta-analysis

Although vaccination is widely accepted as an effective method of preventing and controlling the COVID-19 pandemic, many people are concerned about possible cutaneous side effects which can delay or prevent them from being vaccinated. The objectives of this systematic review were to assess the global prevalence and clinical manifestations of cutaneous adverse reactions following COVID-19 vaccination. PubMed and Scopus databases were searched for articles published from January 1, 2019, to December 31, 2021, and reference lists for each selected article were screened. Case reports, case series, observational studies, and randomized controlled trials that provided information on cutaneous adverse reactions following COVID-19 vaccines were included. A total of 300 studies were included in a systematic review of which 32 studies with 946,366 participants were included in the meta-analysis. The pooled prevalence of cutaneous manifestations following COVID-19 vaccination was 3.8% (95% CI, 2.7%-5.3%). COVID-19 vaccines based on the mRNA platform had a higher prevalence than other platforms at 6.9% (95% CI, 3.8%-12.3%). Various cutaneous manifestations have been reported from injection site reactions which were the most common (72.16%) to uncommon adverse reactions such as delayed inflammatory reactions to tissue filler (0.07%) and flares of pre-existing dermatoses (0.07%). Severe cutaneous reactions such as anaphylaxis have also been reported, but in rare cases (0.05%). In conclusion, cutaneous adverse reactions are common, especially in those receiving mRNA vaccines. Most reactions are mild and are not contraindications to subsequent vaccination except for anaphylaxis, which rarely occurs. COVID-19 vaccination may also be associated with flares of pre-existing dermatoses and delayed inflammatory reactions to tissue filler. Patients with a history of allergies, pre-existing skin conditions, or scheduled for filler injections should receive additional pre-counseling and monitoring. A better understanding of potential side effects may strengthen public confidence in those wary of new vaccine technologies.

Extensive cutaneous leukocytoclastic vasculitis after Sinopharm vaccine: case report and review of the literature

Cutaneous leukocytoclastic vasculitis (LCV) has been reported as a rare form of cutaneous reaction to different SARS-Cov-2 vaccines. Herein, we present the first case of cutaneous LCV following BBIBP-CorV (Sinopharm) vaccine, that occurred in a female patient with no prior comorbidities. A literature review about similar cases following different COVID-19 vaccines is discussed. This article is protected by copyright. All rights reserved.

Development of Severe Pemphigus Vulgaris Following ChAdOx1 nCoV‐19 Vaccination and Review of Literature

Vaccines are indeed a boon for tackling the present COVID‐19 pandemic. In India, ChAdOx1 nCoV‐19 (Covishield) is the most commonly used vaccine in the government vaccination program for adults more than 18 years of age. It is a recombinant vaccine developed by Oxford‐Astra Zeneca and manufactured in India by Serum Institute of India (SSI). Here, we report a case of severe pemphigus vulgaris following the second dose of ChAdOx1 nCoV‐19 vaccination in an adult male. The patient developed septicemia during the course of hospital stay, and he was managed with systemic steroids, parenteral antibiotics, and intravenous immunoglobulins (IVIg) along with proper wound care. Patient started improving within 1 month of therapy. This case is being reported in view of the rarity of pemphigus vulgaris following ChAdOx1 nCoV‐19 vaccine.