Edwardsiella tarda is a type of bacteria associated with fresh and saltwater animals, such as fish, amphibians, reptiles, and mammals. E. tarda is known to cause serious illness in fish. Affected fish may show abnormal swimming behavior, discoloration of the fins or skin, bulging or increased opacity of the eyes, and other complications.
People can become infected by accidentally swallowing contaminated water or through handling infected fish. Affected people commonly get nausea, vomiting, and/or diarrhea. People with weak immune systems may also be at risk for more serious disease.
Wash your hands before and after handling fish to reduce the risk of edwardsiellosis.
From the Center for Disease Control and Prevention (CDC)