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SARS-CoV-2 Infection in the Immunodeficient Host: Necessary and Dispensable Immune Pathways

Giuliana Giardino1, Roberta Romano1, Emma Coppola1

  • 1Department of Translational Medical Sciences, Pediatric Section, Federico II University of Naples, Naples, Italy.

The Journal of Allergy and Clinical Immunology. in Practice
|July 17, 2021
PubMed

Insights

This review explores immune responses to coronavirus disease 2019 (COVID-19), examining how immune deficiencies impact disease severity and host defense against SARS-CoV-2 infection.

Area of Science:

  • Immunology
  • Virology
  • Infectious Diseases

Background:

  • The coronavirus disease 2019 (COVID-19) pandemic presents significant therapeutic challenges globally.
  • Clinical manifestations of COVID-19 vary widely in presentation and severity.
  • The role of primary or acquired immune deficiency in COVID-19 outcomes has been debated.

Purpose of the Study:

  • To review current knowledge on immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
  • To analyze the clinical manifestations of COVID-19, particularly in vulnerable populations.
  • To focus on the impact of congenital and acquired immune deficiencies on SARS-CoV-2 infection.

Main Methods:

  • Literature review of recent studies on SARS-CoV-2 immunology and clinical outcomes.
  • Synthesis of evidence regarding immune defects and their influence on disease progression.
  • Analysis of host defense mechanisms against SARS-CoV-2.

Main Results:

  • Evidence suggests specific immune defects may increase COVID-19 risk, while others may not significantly impact host defense.
  • Observations provide insights into the pathogenesis of SARS-CoV-2 infection.
  • Understanding immune responses can inform the development of novel therapeutic strategies.

Conclusions:

  • Immune response mechanisms against SARS-CoV-2 are complex and varied.
  • Immune deficiencies present a spectrum of risks for COVID-19 patients.
  • Further research into immune defects may reveal new therapeutic targets for COVID-19.
Keywords:
Acquired immunodeficiencyCOVID-19ImmunosuppressionInborn errors of immunityMIS-CSARS-CoV-2

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