He or she will be able to help you directly or guide you to a fish disease diagnostic facility. The following is a list of diagnostic facilities in Illinois and Indiana. A second contact is the United States Fish and Wildlife Service Fish Disease Control Center. They provide advice and diagnostic services. Before shipping salmonid eggs, fry, fingerlings outside of Illinois or Indiana, contact the state fish and wildlife agency for the respective state.
Many states have stringent health standards regarding exported and imported fish.
Selected Further Readings Procedures for the Detection and Identification of Certain Fish Pathogens 1979. David McDaniel, American Fisheries Society. The Third Report to the Fish Farmers. Harry K. Dupree and Jay V. Huner. 1984. United States Dept. of the Interior Fish and Wildlife Service.