secondary pathogen
Pathogenic infection developing as the result of initial infection by some other pathogen.
Ichthyological terms, not general ones.
Pathogenic infection developing as the result of initial infection by some other pathogen.
Genus of aquatic fungi, some species of which attack fishes. Normally a secondary pathogen attacking previously damaged tissue and causing cellular necrosis alongside other epidermal damage. Generally visible as a whitish or greyish filamentous fungus and thus commonly referred to as cotton-wool disease.