SARS-CoV-2: Current trends in emerging variants, pathogenesis, immune responses, potential therapeutic, and vaccine

Ali Salimi-Jeda1, Sina Abbassi2, Atieh Mousavizadeh3

  • 1Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.

Insights

The COVID-19 pandemic, caused by SARS-CoV-2, presents ongoing challenges due to mutations, immune evasion, and treatment difficulties. This review covers the latest research on virus characteristics, pathogenicity, immune response, diagnostics, treatments, and vaccine candidates.

Area of Science:

  • Virology
  • Immunology
  • Infectious Diseases

Background:

  • The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic continues to pose significant global health challenges.
  • Understanding the virus's pathogenicity, immune response, and evolving variants is crucial for effective control.
  • Cytokine storm is implicated as a major factor in COVID-19 disease severity.

Purpose of the Study:

  • To review the current trends and latest research on SARS-CoV-2.
  • To summarize key findings on viral structure, genome, mutations, and variants.
  • To provide an overview of pathogenicity, immune response, diagnostics, treatments, and vaccine development.

Main Methods:

  • Literature review of recent scientific studies on SARS-CoV-2.
  • Synthesis of information on viral characteristics, genetic mutations, and emerging variants.
  • Compilation of data on immune responses, diagnostic methods, therapeutic strategies, and vaccine candidates.

Main Results:

  • SARS-CoV-2 exhibits significant genetic variability, leading to the emergence of highly transmissible variants.
  • The immune response, including cytokine storm, plays a critical role in disease severity.
  • Challenges persist in achieving long-lasting immunity, preventing reinfection, and developing effective vaccines and treatments.

Conclusions:

  • Continued research is essential to address the complexities of SARS-CoV-2 infection, including its mutations and immune interactions.
  • Effective control strategies require advancements in diagnostics, therapeutics, and vaccine development.
  • The review highlights the need for a comprehensive understanding to combat the ongoing COVID-19 pandemic.

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