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bacterial Germs Flex Flexobacter, Columnaris Meds Antibiotics, warnings and alternatives Melioidosis environmental pollutants human Human ailments from fish Infection Venom Infection and envenomation are both possible and are both serious and can be fatal. parasites

protzoal Single cell pathogens Ick Velvet Oodinium, "Gold Dust" disease treatments Commercial Commercial Prepared Remedies viral Viral pathogens