You might find something like this on your property or along public forest trails. It’s about the same size and shape as a ketchup packet and smells like rotten fish. Believe it or not, this little packet protects you, your pets, and your family. The USDA drops these in areas (including Hamilton County) where raccoon-variant rabies has been known to occur. Raccoons find the packet and eat the contents, and it provides them with immunity to rabies. If you find one, simply leave it where it is, or, if it’s in an area accessible to a pet or child, just put on a pair of gloves and move it. Don’t worry, though— even if it was handled by a human or pet, it doesn’t pose any danger besides an unpleasant odor.
~ For Fox Sake Wildlife Rescue
Because everything like this should have a clickable source, first one is a news report second one is the NYC department of health official site.