It depends. There is risk of contamination of produce with germs if fresh chicken manure is put directly on food gardens. Although you should not put fresh chicken manure on your garden because of the risk of contamination, using fully composted chicken manure in your garden is safe.
Category: Can humans get worms from chickens?
It is common for chickens, ducks, and other poultry to carry Salmonella and Campylobacter. These are bacteria that can live naturally in the intestines of poultry and many other animals and can be passed in their droppings or feces. Even organically fed poultry can become infected with Salmonella and Campylobacter.