When Was the Last Case of Polio in the United States? By Vincent Iannelli, MD / August 10, 2022 / cVDPV, last case of polio, OPV, polio, Rockland county, shedding, unvaccinated, VAPP, wastewater The last case of polio in the United States was a lot more recent than you might think. Share this:FacebookTwitterRedditPrintLinkedInPinterestEmailTumblrWhatsAppLike this:Like Loading...