key: cord-328090-bprnq9wx authors: Abdollahimajd, Fahimeh; Youssefian, Leila; Pourani, Mohammad Reza; Vahidnezhad, Hassan; Uitto, Jouni title: Novel coronavirus 2019 (COVID‐19) and epidermolysis bullosa: report of three cases date: 2020-08-14 journal: Dermatol Ther DOI: 10.1111/dth.14194 sha: doc_id: 328090 cord_uid: bprnq9wx nan Dear Editor, Recent demonstration of ACE2 and TMPRSSs expressions, both necessary for entry of the virus into the host cells, in human epidermis suggests that skin might be a cellular host and a potential transmission route for SARS-CoV-2 , especially in skin fragility conditions 1 . Epidermolysis bullosa (EB) is a skin fragility disorder caused by mutations in genes expressed in the cutaneous basement membrane zone 2, 3 . While an International consensus panel recently provided recommendations for prevention and multidisciplinary care of EB patients during the COVID-19 pandemic 4 , the phenotypic outcome in these patients in comparison to the general population has not been reported; however EB patients, particularly those with syndromic forms, may be at higher risk for infection with severe complications 4, 5 . Here, we reported three EB patients infected by COVID-19 during this pandemic. year-old male who experienced low-grade fever, pleuritic chest pain, myalgia, and dry cough (Figure 1e-g) 7 . This mutation was disclosed by gene-targeted next-generation sequencing panel for EB 8 . He initially adhered to most recommendations of isolation; however, he worked as a construction worker and experienced mild signs of infection. A nasopharyngeal swab specimen for SARS-CoV-2 was positive. Since his symptoms were mild, homequarantine was recommended. After one week, his symptoms were resolved without any specific treatment. Patients with chronic diseases such as EB, may face health issues during the COVID-19 pandemic 9 . It has been suggested that disrupted epidermal barrier may provide an entry route for SARS-CoV-2 10 This article is protected by copyright. All rights reserved. Our patients did not experience a severe course of COVID-19 despite some EB related complications, including severe anemia, esophageal strictures and growth retardation; in addition, one of the kidneys of the third patient was non-functional. Two patients experienced transient symptoms while in home-quarantine, and the third one required hospitalization. Thus, the severity of the COVID-19 in these EB patients was in the spectrum experienced by the general population. However, further clinical studies are required to investigate the prevalence and course of COVID-19 in EB patients. This article is protected by copyright. All rights reserved. High expression of ACE2 on keratinocytes reveals skin as a potential target for SARS-CoV-2 Molecular pathology of the basement membrane zone in heritable blistering diseases: The paradigm of epidermolysis bullosa Phenotypic spectrum of epidermolysis bullosa: The paradigm of syndromic versus non-syndromic skin fragility disorders Multidisciplinary care of epidermolysis bullosa during the COVID-19 pandemic -Consensus: Recommendations by an international panel of experts Epidermolysis bullosa and the COVID-19 pandemic: challenges and recommendations Dystrophic epidermolysis bullosa: COL7A1 mutation landscape in a multi-ethnic cohort of 152 extended families with high degree of customary consanguineous marriages Recessive mutation in tetraspanin CD151 causes Kindler syndrome-like epidermolysis bullosa with multi-systemic manifestations including nephropathy Multigene next generation sequencing panel identifies pathogenic variants in patients with unknown subtype of epidermolysis bullosa: Subclassification with prognostic implications Comorbidity and its impact on 1590 patients with COVID-19 in China: a nationwide analysis The microbiome and atopic eczema: More than skin deep This article is protected by copyright. All rights reserved This article is protected by copyright. All rights reserved.