| Organism
|
Micro
|
Distribution
|
Other Notes
|
| Aeromonas
|
Gram-negative bacillus
|
Worldwide in warm fresh and brackish water
|
Often following alligator, fish, snake, or freshwater leech bites. Can also cause hemorrhagic diarrhea
|
| Chromobacterium violaceum
|
Gram-negative bacillus with violet colonies
|
Soil and water in tropical and subtropical regions
|
Usually following laceration or bite with exposure to brackish or stagnant water
|
| Edwardsiella tarda
|
Gram-negative bacillus
|
|
Causes emphysematous putrefactive disease of catfish
|
| Shewanella
|
Gram-negative bacillus
|
Worldwide in temperate and tropical saltwater
|
|
| Vibrio vulnificus
|
Gram-negative bacillus
|
Warm, low to moderate salinity water, particularly US Atlantic and Guld of Mexico
|
Particularly associated with oysters. Causes gastroenteritis, bacteremia, and necrotizing soft tissue infections. More common in men.
|
| Erysipelothrix rhusiopathiae
|
Gram-positive bacillus often misidentified as Lactobacillus or Listeria
|
|
Following injury during fish handling.
|
| Mycobacterium marinum and other NTM
|
Acid-fast bacillus
|
Fresh and saltwater
|
|
| Streptococcus iniae
|
Gram-positive, beta-hemolytic coccus
|
Freshwater, particularly associated with farm-raised fish
|
|
