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September 18, 2025MicroorganismsOpen Access

The Omicron Wave in Tunisia: Dynamic, Diversity, and Phylogenetic Analyses

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Authors

YCYasmine ChaariSBS BoubakerHKHaifa Khemiri

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Overview

This analysis reveals genetic diversity and phylogenetic dynamics of the Omicron variant, suggesting localized evolution.

Key Points

  • BA.2 was the predominant subvariant, accounting for 38% of the cases identified in Tunisia.
  • Phylogenetic analysis uncovered local clusters featuring BA.1, BA.2, and BA.5 strains, alongside imported variants.
  • The study processed 928 high-quality whole-genome sequences, highlighting the importance of genomic surveillance in public health.
  • Localized viral evolution raises concerns about potential future variants, emphasizing ongoing monitoring needs.

Cite This Study

Chaari et al. (2025) studied this question.

synapsesocial.com/papers/68d462d231b076d99fa624b7https://doi.org/10.3390/microorganisms13092162
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Genomic surveillance of SARS-CoV-2 in Tunisia during the omicron era: insights from the national influenza & other respiratory viruses laboratory2026
  2. 2Dynamic of SARS-CoV-2 variants circulation in Tunisian pediatric population, during successive waves, from March 2020 to September 20222024 · 8 citations
  3. 3Unveiling the emergence of SARS-CoV-2 JN.1 sub-variant: Insights from the first cases at Charles Nicolle Hospital, Tunisia2024 · 1 citations
  4. 4Genomic Surveillance of SARS‐CoV‐2 in Senegal (2020–2024): Variant Turnover, Omicron Introductions, and Interregional Spread2026
  5. 5Temporal Evolution of COVID-19 Transmission Indicators in Tunisia During the First Three Years of the Pandemic: A Prospective Descriptive Study, 2020–20222026