The polio virus is highly infectious and life-threatening. While rare, polio has appeared in the New York metropolitan region recently. The New York State Department of Health has reported a case of paralytic polio in a young adult and the poliovirus has been found in the New York City sewer system. The information below is based on current (as of August 15, 2022) recommendations from the Centers for Disease Control and Prevention (CDC) and the New York State Department of Health.