{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T21:57:37Z","timestamp":1770328657068,"version":"3.49.0"},"reference-count":41,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,3,4]],"date-time":"2024-03-04T00:00:00Z","timestamp":1709510400000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Medical Virology"],"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Patients with anti\u2010melanoma differentiation\u2010associated gene 5 (anti\u2010MDA5) dermatomyositis (DM) have a higher risk of coronavirus disease 2019 (COVID\u201019) infection. In this longitudinal observational study, we aimed to investigate the clinical and immunological features of these patients after COVID\u201019 infection. A total of 73 patients with anti\u2010MDA5 DM were recruited from the Second Affiliated Hospital of Chongqing Medical University during the Omicron wave epidemic. Clinical data were collected by questionnaire survey and electronic medical records. Blood samples were used to determine the immunity responses. From December 9, 2022 to March 31, 2023, 67 patients were eligible for final analysis; 68.7% of them were infected with COVID\u201019. The most common symptoms observed in COVID\u201019 were upper respiratory symptoms, most cases were mild or moderate (97.8%). The clinical laboratory indexes were relativity stable in patients after infection (all <jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05). Vaccination is not a protective factor against the Omicron infection (odds ratio: 2.69, 95% confidence interval: 0.81\u20138.93, <jats:italic>p<\/jats:italic>\u2009=\u20090.105). Both wildtype (WT) neutralizing antibodies titer and BA.5\u2010specific immunoglobulin G titer were significantly enhanced after infection (all <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01), which was as high as healthy controls (HCs). The memory B\u2010cell responses were similar between the patients with anti\u2010MDA5 DM and HCs (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05). However, both the WT\u2010specific CD8<jats:sup>+<\/jats:sup> T cells and CD4<jats:sup>+<\/jats:sup> T cells were reduced in patients with anti\u2010MDA5 DM (all <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). In conclusion, patients with anti\u2010MDA5 DM did not deteriorate the COVID\u201019, in turn, COVID\u201019 infection did not increase the risk of anti\u2010MDA5 DM exacerbation. The humoral responses were robust but the cellular responses were weakened after COVID\u201019 infection.<\/jats:p>","DOI":"10.1002\/jmv.29493","type":"journal-article","created":{"date-parts":[[2024,3,4]],"date-time":"2024-03-04T05:25:02Z","timestamp":1709529902000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Clinical and immunological features of COVID\u201019 in patients with anti\u2010MDA5 dermatomyositis during the omicron wave in Chongqing, China"],"prefix":"10.1002","volume":"96","author":[{"given":"Na","family":"Wu","sequence":"first","affiliation":[{"name":"Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis The Second Affiliated Hospital of Chongqing Medical University Chongqing China"},{"name":"Department of Infectious Diseases The Second Affiliated Hospital of Chongqing Medical University  Chongqing 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