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Since the coronavirus disease of 2019 (COVID-19) pandemic swept across the world, the flare of immune-mediated disease following SARS-COV-2 infection has emerged rapidly. Previous studies have documented a growing number of cases of IgA nephropathy (IgAN) subsequent to COVID-19 infection. IgAN has been established as a complement mediated autoimmune disease. Nevertheless, the characteristics of clinical and immunological features in patients with IgAN after COVID-19 infection was scantily reported and merited further exploration.
Cheng et al. (Mon,) studied this question.