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COVID‐19 immunopathology: From acute diseases to chronic sequelae

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The clinical manifestation of coronavirus disease 2019 (COVID‐19) mainly targets the lung as a primary affected organ, which is also a critical site of immune cell activation by severe acute… Click to show full abstract

The clinical manifestation of coronavirus disease 2019 (COVID‐19) mainly targets the lung as a primary affected organ, which is also a critical site of immune cell activation by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). However, recent reports also suggest the involvement of extrapulmonary tissues in COVID‐19 pathology. The interplay of both innate and adaptive immune responses is key to COVID‐19 management. As a result, a robust innate immune response provides the first line of defense, concomitantly, adaptive immunity neutralizes the infection and builds memory for long‐term protection. However, dysregulated immunity, both innate and adaptive, can skew towards immunopathology both in acute and chronic cases. Here we have summarized some of the recent findings that provide critical insight into the immunopathology caused by SARS‐CoV‐2, in acute and post‐acute cases. Finally, we further discuss some of the immunomodulatory drugs in preclinical and clinical trials for dampening the immunopathology caused by COVID‐19.

Keywords: immunopathology acute; immunopathology; covid immunopathology; acute diseases

Journal Title: Journal of Medical Virology
Year Published: 2022

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