Health officials in New York are “very, very concerned” about a recent outbreak of polio, the latest in a string of infectious diseases to rattle the state.  Polio was eradicated in the United States in 1979 thanks to high vaccination rates. But now the disease has been detected in wastewater samples in multiple counties, one man has been irreversibly paralysed, and a state of emergency has been declared.  The unidentified individual, who was unvaccinated, is thought to be one of hundreds of New Yorkers who have contracted the virus, as paralysis affects only one in every 200 people. View More