Emergence and evolution of the Omicron SARS-CoV-2 variant in the island of Martinique - 16/06/23
, L. Aubert b, ⁎, J. Schaeffer c, L. Fagour d, A. Dubremetz d, Vincent Enouf e, f, M-H. Glaudon-Louveau de la Guigneraye g, F. Nestour h, J. Rosine a, G. Dos Santos d, i
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Highlights |
• | From W50-2021 to W25-2022, three epidemic waves were observed. |
• | These waves were caused by the sub-lineages BA.1, BA.2 and BA.5 of the Omicron variant. |
• | A moderate hospital impact was observed during circulation of the Omicron sub-lineages compared to the previous wave, dominated by the Delta variant. |
Abstract |
Introduction |
We aimed to describe the epidemiological situation during the Omicron variant circulation in light of genomic surveillance data in Martinique, a territory with low vaccination rates.
Patients and methods |
We exploited COVID-19 national databases of virological tests, for the collection of hospital data and for the sequencing data from December 13, 2021 to July 11, 2022.
Results |
Three prevailing sub-lineages of Omicron have been identified in Martinique (BA.1, BA.2, BA.5) during this period causing three distinct waves characterized by an increase in virological indicators compared to previous waves, with moderate severity in the first and last waves, caused by BA.1 and BA.5, respectively.
Conclusion |
The SARS-CoV-2 outbreak is still progressing in Martinique. Genomic surveillance system in this overseas territory must be continued for rapid detection of emerging variants/sub-lineages.
Le texte complet de cet article est disponible en PDF.Keywords : COVID-19, Omicron variant, Island of Martinique
Plan
Vol 53 - N° 4
Article 104690- juin 2023 Retour au numéro
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