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. 2022 Aug 19;71(33):1065–1068. doi: 10.15585/mmwr.mm7133e2

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This figure is a timeline of patient activities, potential poliovirus exposures, shedding, and poliovirus-positive wastewater samples genetically linked to a patient with a case of type 2 vaccine-derived poliovirus in New York during May–August 2022. — Timeline of patient activities, potential poliovirus exposures, shedding, and poliovirus-positive wastewater* samples† genetically linked to a patient with a case of type 2 vaccine-derived poliovirus — New York, May–August 2022

Abbreviations: ED = emergency department; VDPV2 = type 2 vaccine-derived poliovirus.

* Wastewater, also referred to as sewage, includes water from household or building use (e.g., toilets, showers, and sinks) that can contain human fecal waste and water from non-household sources (e.g., rain and industrial use).

^† More than one positive wastewater sample might have been collected on the same day in Rockland County or Orange County.