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. 2020 Jun 1;114(6):470-472.
doi: 10.1093/trstmh/trz109.

Achromobacter xylosoxidans in hospital environments: still waters run deep!

Karine Marion-Sanchez  1 , Claude Olive  2 , Marie-Georges Platon  2 , Myriam Cesarine  2 , Christian Derancourt  3 , Karine Pailla  2
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Achromobacter xylosoxidans in hospital environments: still waters run deep!

Karine Marion-Sanchez et al. Trans R Soc Trop Med Hyg. .

Abstract

Background: Hospital reservoirs of Achromobacter xylosoxidans, responsible for nosocomial infections, are poorly known.

Methods: We examined the growth, survival and biofilm formation of five A. xylosoxidans strains for up to 2 y in distilled, dialysis or microfiltered water. Each strain was inoculated at 102 CFU/ml without adding nutrients.

Results: All strains grew at a level of 3x103 to 1.5x107 CFU/ml; each strain showed a preferred water type. Strains isolated from quaternary ammoniums showed the highest ability to grow and form biofilms in nutrient-poor waters.

Conclusion: Medical waters and notably sterile distilled water bottles appear to be long-lasting reservoirs of A. xylosoxidans.

Keywords: Achromobacter xylosoxidans; biofilms; growth; hospital; medical waters; survival.

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