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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
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SARS-CoV-2 Omicron variant: recent progress and future perspectives.

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The Omicron variant (B.1.1.529) of SARS-CoV-2 is highly transmissible and evades immunity, but shows reduced pathogenicity. This review summarizes Omicron's characteristics and discusses therapeutic strategies for COVID-19.

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Area of Science:

  • Virology
  • Immunology
  • Epidemiology

Background:

  • The COVID-19 pandemic is characterized by the emergence of SARS-CoV-2 variants.
  • Omicron (B.1.1.529) is the most mutated variant, exhibiting high transmissibility and immune evasion.
  • Omicron has become the dominant variant globally, raising significant public health concerns.

Purpose of the Study:

  • To review the molecular and clinical characteristics of the Omicron variant.
  • To discuss the infectivity, pathogenicity, and immune evasion capabilities of Omicron.
  • To explore potential therapeutic strategies and future pandemic response.

Main Methods:

  • Literature review of recent studies on the Omicron variant.
  • Analysis of molecular and clinical data.
  • Synthesis of information on infectivity, pathogenicity, and immune response.

Main Results:

  • Omicron demonstrates significantly enhanced transmissibility and immune evasion compared to previous variants.
  • Reduced pathogenicity observed in Omicron due to altered cell tropism.
  • Omicron exhibits resistance to vaccine-induced and natural immunity, as well as most antibody therapies.

Conclusions:

  • Understanding Omicron's characteristics is crucial for managing the ongoing COVID-19 pandemic.
  • Targeted therapeutic strategies are needed to address Omicron infections.
  • Proactive measures and strategies are essential to prepare for future variants and end the pandemic.