A Rockland County, New York, resident has polio — marking the first case recorded in the US in nearly a decade, officials said Thursday.

The New York state and Rockland County departments of health did not immediately provide further details about the patient or their condition.

State health officials, however, advised medical practitioners to be “vigilant for additional cases.”

The chain of transmission that led to the case is under investigation, the state DOH said. Sequencing indicates the transmission chain is “from an individual who received the oral polio vaccine,” which has not been given in the U.S. since 2000, officials said.... Read More: NY Post