Infectious Disease Compendium

Edwardsiella

Microbiology

Gram-negative rod, includes E. hoshinae, E. ictaluri, E. tarda. It is an Enterobacteriaceae.

Epidemiologic Risks

A water (brackish) and foodborne (freshwater fish like catfish where it lives in their intestines) organism. E. tardu looks like a British police box (PubMed).

Japan has the most cases, most US cases are from the Gulf coast.

Syndromes

E. tarda: A mild to moderate diarrhea.

The occasional bacteremia, worse in liver disease (PubMed).

"The most common clinical manifestations were hepatobiliary infection, including cholangitis, liver abscess, and cholecystitis. Overall 30-day mortality for E. tarda bacteremia was 12%, and overall 90-day mortality was 27% (PubMed)."

Treatment

All antibiotics you would use against E. coli.

Notes

Last Update: 10/10/19.