Why the study?
Environmental surveillance supplements acute flaccid paralysis surveillance in poliovirus eradication, implemented in Senegal where no poliovirus had been detected since 2010.
Environmental surveillance identified the importation and circulation of vaccine-derived poliovirus serotype 2 in Senegal, highlighting the need for expanded surveillance.
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Detection of VDPV2 in Senegal sewage warrants vigilance; leaves open the role of environmental surveillance in eradication.
Faye et al. (2022) studied this question.
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