Polio Fears Rise In New York Amid Possible Community Spread

A majority of people infected with polio have no symptoms, but can still shed the virus and give it to others for days or weeks.

New York state health officials issued a more urgent call Thursday for unvaccinated children and adults to get inoculated against polio, citing new evidence of possible "community spread" of the dangerous virus.

The polio virus has now been found in seven different wastewater samples in two adjacent counties north of New York City, health officials said.

So far, only one person has tested positive for polio — an unvaccinated adult in Rockland County who suffered paralysis.