key: cord-0951697-y99x7gyg authors: Kobayashi, Shigeto; Taniguchi, Yoshinori; Kida, Issei; Tamura, Naoto title: SARS‐CoV2‐triggered acute arthritis: Viral arthritis rather than reactive arthritis date: 2021-07-31 journal: J Med Virol DOI: 10.1002/jmv.27229 sha: 16b63a1c648c01c913bb9f8d66e800d3ceb635d1 doc_id: 951697 cord_uid: y99x7gyg nan SARS-CoV2-triggered acute arthritis: Viral arthritis rather than reactive arthritis Dear Editor, We read, with interest, a case report titled "The first reactive arthritis (ReA) case associated with COVID-19" by Saricaoglu et al. 1 Furthermore, it has been concluded that ReA is related to bacterial infections that patients with HIV contract, not to HIV infection itself. 11, 12 In conclusion, it is necessary to understand the fundamental knowledge of ReA, 4-7 viral arthritis, 10 and other acute inflammatory arthritis. The differential diagnosis of these diseases is very important as it influences not only the subsequent management of patients in clinical practice 9,10 but also knowledge in the new literature. The first reactive arthritis case associated with COVID-19 Acute arthritis following SARS-CoV-2 infection Arthritis associated with Yersinia enterocolitica infection On the difficulties of establishing a consensus on the definition of and diagnostic investigations for reactive arthritis. Results and discussion of a questionnaire prepared for the 4th International Workshop on Reactive Arthritis Expanding the spectrum of reactive arthritis (ReA): classic ReA and infection-related arthritis including poststreptococcal ReA, Poncet's disease, and iBCGinduced ReA Diagnosis and classification of reactive arthritis Reactive arthritis Reactive arthritis update: Spotlight on new and rare infectious agents implicated as pathogens Postinfectious arthritis in pediatric practice Viral arthritis Rheumatic manifestations of HIV-AIDS Human immunodeficiency virus infection is not associated with Reiter's syndrome: data from three large cohort studies