Plesiomonas shigelloides
Plesiomonas shigelloides is a Gram-negative bacterium found in freshwater and estuarine environments. It is an opportunistic pathogen that can cause gastrointestinal infections in fish and humans. In fish, infections may lead to hemorrhages, skin ulcers, and septicemia. Human infections are often linked to the consumption of contaminated water or seafood, leading to diarrhea and gastrointestinal distress.
Distribution: Worldwide in freshwater and estuarine environments.
Hosts: Fish, amphibians, and humans.
Detection Methods: Bacterial culture – TSA (tryptic soy agar).
Target Tissue: Intestines and systemic infection.