Microorganisms · 5 authors, 2 centres
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This narrative review analyzed recent case reports and outbreak investigations to identify opportunistic bacterial pathogens in food and drinking water that pose a threat to susceptible individuals. It concluded that risky dietary habits, like consuming raw products, are significant risk factors, and highlighted the need for improved food hygiene and consumer awareness.
This narrative review synthesizes recent case reports, outbreak reports, and systematic reviews from 2019 to 2023 to identify bacterial pathogens transmitted via food or water that cause opportunistic infections in predisposed individuals. The analysis identified 24 bacterial groups, including both known pathogens and some considered innocuous or used in fermentation. It found that no recent dietary-route infections were reported for critical nosocomial pathogens like Acinetobacter baumannii and Klebsiella pneumoniae, though their environmental origins remain unclear. The review highlights that risky dietary habits (e.g., consuming raw fish, meat, unpasteurized milk) and failures in fermentation control are common sources of infection.
