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5. enterobacteriaceae

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• Bacilli gram negativi, asporigeni, mobili ed<br />

immobili, aerobi ed anaerobi<br />

• Fermentano il glucosio, riducono il nitrato,<br />

cat +, ossidasi –<br />

• Lattosio + e lattosio -<br />

• 32 generi<br />

• 130 specie 20 responsabili del<br />

95% delle infezioni<br />

. patogeni - struttura antigenica<br />

. opportunisti complessa<br />

. commensali

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