Achromobacter xylosoxidans in hospital environments: still waters run deep!
Transactions of the Royal Society of Tropical Medicine and Hygiene(2020)
摘要
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.
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