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. 2024 Nov;29(45):2400705.
doi: 10.2807/1560-7917.ES.2024.29.45.2400705.

Detection of circulating type 3 vaccine-derived polioviruses in French Guiana, May to August 2024

Stéphanie Raffestin  1   2 , Ambre Tinard  3   4   5 , Antoine Enfissi  6   1 , Marie-Line Joffret  3   5   4 , Timothée Lichtenstein  6 , Sourakhata Tirera  7 , Laura Zanetti  8 , Marie Barrau  9 , Francky Mubenga  10 , Adrien Ortelli  10 , Christophe N Peyrefitte  11   1 , Anne Lavergne  7 , Dominique Rousset  6   1 , Maël Bessaud  4   5   3
Affiliations

Detection of circulating type 3 vaccine-derived polioviruses in French Guiana, May to August 2024

Stéphanie Raffestin et al. Euro Surveill. 2024 Nov.

Abstract

Circulating type 3 vaccine-derived polioviruses (cVDPV3s) were detected in three wastewater samples collected in French Guiana from May through August 2024. As the oral polio vaccine is not used in French Guiana, this event involved an import either of cVDPV3s themselves or of a vaccine strain from which the cVDPV3s emerged in French Guiana. This highlights the importance of environmental surveillance for the detection of silent poliovirus circulation. Eliminating any pockets of cVDPVs is crucial for the polio eradication programme.

Keywords: environmental surveillance; oral polio vaccine; poliomyelitis; poliovirus; vaccine-derived poliovirus.

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Conflict of interest statement

Conflict of interest: None declared.

Figures

Figure 1
Figure 1
Map of French Guiana and greater metropolitan area of Cayenne
Figure 2
Figure 2
Genetic analysis of detected type 3 vaccine-derived polioviruses, French Guiana, June–August 2024 (n = 4)
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