Thoroughly clean mud from all equipment before going to other waters. This includes moving above barriers such as dams on the same water. Waders, boots, anchors, boats and boat trailers should all be carefully cleaned. Thoroughly dry equipment in the sun, if possible, before reuse. Do not clean fish in any body of water other than the one in which the fish were caught.
Adult fish can carry whirling disease without showing any deformities.
In particular, the heads of infected fish contain the resistant spores. Do not dispose of fish parts in other waters. It is illegal to transport live fish. Upstream spread of whirling disease can be blocked by dams and diversions. Moving fish above these barriers can allow this disease to spread.