Polioviruses found in wastewater samples in 2 N.Y. counties, suggesting continued spread

New York State health authorities revealed Thursday that they had detected additional polioviruses in wastewater sampled in two counties north of New York City, findings that signal continued spread of the viruses in the region.

The positive wastewater samples were found in Rockland County, where health authorities revealed two weeks ago that a man in his 2os had been paralyzed by so-called vaccine-derived polioviruses, and in neighboring Orange County as well. Positive samples were collected in June and July in Orange County and in July in Rockland County, suggesting that viruses have been spreading for some time.

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