Polio has reemerged in the US. Who should get a polio vaccine now? https://ift.tt/DBknbiT New York's governor has declared a state of emergency after health officials detected poliovirus in the wastewater of five counties -- evidence the disease is circulating. The declaration also follows a report from the US Centers for Disease Control and Prevention of an unvaccinated person in Rockland County, New York, who was diagnosed with paralytic polio this summer -- the first case identified in the United States in nearly a decade.