non-pathogen injury or other sign
also known as: cut, scrape, bite, abrasion
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Many injuries or disease conditions are not caused by a specific pathogen. These can include physical damage - cuts, scrapes, contusions, hooking injuries, bites, burns - and toxic effects of chemical agents or low oxygen conditions. Fish can have other spots/lumps/patches that are not realted to a particular pathogen, injury or disease, and could be just natural variation in individual fish. |
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Detection Method: gross pathology / gross clinical signs |