Vaccine-Derived Polio Case Discovered in NY as Officials Issue Alert to Hospitals

Polio vaccine is seen at an immunization post in Jakarta, Indonesia, on Aug. 30, 2005. Dimas Ardian/Getty Images

The New York State Health Department on July 21 confirmed a polio case and called on health care providers to look for more infections.

Officials said a resident of Rockland County, located about an hour from New York City and next to the highly populous Westchester County, tested positive for the virus. The New York health agency said the U.S. Centers for Disease Control and Prevention (CDC) confirmed the infection.