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Faye M, Faye MN, Ndiaye B, Diagne MM, Sankhe S, Top NM, Diallo A, Loucoubar C, Dia N, Sall AA, Faye O. Detection of a cluster of Omicron's BA.4 sublineage in Northern Senegal and identification of the first XAS recombinant variant in Senegal. Virus Res 2024; 339:199259. [PMID: 37926155 PMCID: PMC10652113 DOI: 10.1016/j.virusres.2023.199259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/18/2023] [Accepted: 10/29/2023] [Indexed: 11/07/2023]
Abstract
In Senegal, since its first detection in early March 2020, genomic surveillance of SARS-CoV-2 isolates has led to the identification of the emergence of the Omicron BA.4 and BA.5 sublineages from early June 2022. To investigate the origin of a cluster of cases in Northern Senegal on July 2022, isolates were analysed using Next-generation sequencing and phylogeny. Our data provided evidence of the origin of the cluster of BA.4 cases from a XAS recombinant, that is to date, the first reported sequence of this variant from Senegal. Continuous genomic surveillance of positive SARS-CoV-2 samples is a crucial need.
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Affiliation(s)
- Martin Faye
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal.
| | - Modeste Name Faye
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal
| | - Babacar Ndiaye
- Biomedical Laboratory, Institut Pasteur de Dakar, Dakar BP220, Senegal
| | - Moussa Moïse Diagne
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal
| | - Safietou Sankhe
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal
| | - Ndeye Marième Top
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar BP220, Senegal
| | - Amadou Diallo
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar BP220, Senegal
| | - Cheikh Loucoubar
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar BP220, Senegal
| | - Ndongo Dia
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal
| | - Amadou Alpha Sall
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal
| | - Ousmane Faye
- Virology Department, Institut Pasteur de Dakar, 36, avenue Pasteur, Dakar BP220, Senegal
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