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Epidemiology, Symptoms and Pathophysiology of Long Covid Complications

Chongyang Zhang1, Chiung-Yu Hung2, Chia George Hsu3

  • 1Department of Pharmacology and Physiology, University of Rochester, School of Medicine and Dentistry, Rochester, NY 14642, USA.

Journal of Cellular Immunology
|April 25, 2025
PubMed

Insights

Long COVID, a post-acute condition following SARS-CoV-2 infection, affects many survivors with multi-organ issues. This review details long COVID

Area of Science:

  • Infectious Diseases
  • Immunology
  • Public Health

Background:

  • Long COVID, or post-acute sequelae of SARS-CoV-2 infection (PASC), affects a significant portion of COVID-19 survivors.
  • PASC is characterized by persistent, multi-organ complications impacting various physiological systems.
  • Understanding the epidemiology and pathophysiology of Long COVID is crucial for public health strategies.

Purpose of the Study:

  • To provide a comprehensive review of the epidemiology and symptoms of Long COVID complications.
  • To elucidate the detailed pathophysiological mechanisms underlying diverse Long COVID manifestations.
  • To emphasize the need for continued research to improve Long COVID management.

Main Methods:

  • Systematic review of current scientific literature on Long COVID.
  • Synthesis of research data on prevalence and clinical manifestations.
  • Analysis of pathophysiological mechanisms across affected organ systems.

Main Results:

  • Long COVID presents with a wide spectrum of complications, including cardiac, hematological, vascular, pulmonary, neuropsychiatric, renal, gastrointestinal, musculoskeletal, immune, and dermatological issues.
  • The review details the prevalence and underlying pathophysiological mechanisms of these diverse complications.
  • Current research highlights the complex and multi-systemic nature of Long COVID.

Conclusions:

  • Long COVID is a complex condition with diverse and significant multi-organ complications.
  • Enhanced understanding of Long COVID's epidemiology and pathophysiology is essential.
  • Further research is critical to develop effective management and treatment strategies for Long COVID survivors.

Keywords:
COVID-19EpidemiologyLong COVID complicationsPathophysiologySymptoms

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