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CAS AEROMONAS

AEROMONAS

Aeromonas is a group of bacteria found in freshwater and sometimes drinking water that can cause diarrhea and wound infections. It matters because it can grow in water pipes and household plumbing, especially in warm conditions [1][2].

Where It Comes From

Rivers, lakes, sewage, fish and shellfish, and biofilms in drinking-water systems and home plumbing [2][1].

How You Are Exposed

Swallowing untreated or poorly disinfected water; getting freshwater in your mouth while swimming; exposing cuts to lakes, rivers, or floodwater; eating undercooked seafood or produce washed with contaminated water [1][2].

Why It Matters

Can cause diarrhea, vomiting, stomach cramps, and skin/wound infections; rarely leads to bloodstream infections. Illness is usually mild but can be severe in some people [1].

Who Is at Risk

Young children, older adults, and people with weakened immune systems or chronic illnesses; anyone with open wounds exposed to freshwater [1][2].

How to Lower Your Exposure

Drink treated water; maintain and test private wells, especially after floods; avoid swallowing water when swimming; keep wounds out of freshwater and clean them promptly; flush stagnant taps; cook seafood thoroughly; wash produce with safe water [1][2].

References

  1. [1]CDC Yellow Book 2024: Aeromonas species (Aeromonas hydrophila and others). Centers for Disease Control and Prevention.
  2. [2]WHO Guidelines for Drinking-water Quality, 4th ed. (Microbial Fact Sheets: Aeromonas). World Health Organization.
  3. [3]EPA Contaminant Candidate List (CCL) – Aeromonas. U.S. Environmental Protection Agency.

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