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Invasive infection with Streptococcus iniae--Ontario, 1995-1996
Abstract:
During December 1995-February 1996, four cases of a bacteremic illness (three accompanied by cellulitis and the fourth with infective endocarditis, meningitis, and probable septic arthritis) were identified among patients at a hospital in Ontario. Streptococcus iniae, a fish pathogen not previously reported as a cause of illness in humans, was isolated from all four patients. All four patients were of Chinese descent had a history of preparing fresh, whole fish; three patients for whom information was available had had an injury associated with preparation of fresh, whole fish purchased locally. This report summarizes information about these cases and presents preliminary findings of an ongoing investigation by health officials in Canada, which suggests that S. iniae may be an emerging pathogen associated with injury while preparing fresh aquacultured fish.
Insights
Streptococcus iniae, a fish pathogen, caused severe illness in four patients in Ontario. This emerging pathogen is linked to injuries sustained during the preparation of fresh, aquacultured fish.
Area of Science:
- Microbiology
- Infectious Diseases
- Public Health
Background:
- Reports a novel bacteremic illness in humans.
- Identifies Streptococcus iniae as the causative agent.
- Highlights the bacterium's previous status as a fish pathogen.
Observation:
- Four cases of severe illness, including cellulitis, endocarditis, meningitis, and septic arthritis, were observed between December 1995 and February 1996.
- All affected patients were of Chinese descent and had prepared fresh, whole fish.
- Three patients reported injuries during fish preparation.
Findings:
- Streptococcus iniae was isolated from all four patients.
- The pathogen appears to be associated with injuries from preparing fresh, aquacultured fish.
- This suggests S. iniae is an emerging human pathogen.
Implications:
- Underscores the need for increased awareness of fish-borne pathogens in healthcare.
- Suggests potential public health risks associated with aquacultured fish preparation.
- Calls for further investigation into Streptococcus iniae as an emerging infectious agent.