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9 Cards in this Set

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Listeria monocytogenes - gram, motile?
Gram positive, flagella.
Listeria monocytogenes - growth?
COLD! Psychrotroph - grows at 0.5 - 45 C (eurythermal).
Listeria monocytogenes - air?
Aerobic to microaerophilic.
Listeria monocytogenes - onset time?
1 to several weeks.
Listeria monocytogenes - symptoms?
Flu-like; meningitis.
Listeria monocytogenes - associated foods?
Milk and other low temperature stored foods; raw meat and poultry.
Listeria monocytogenes - indirect sources?
Refrigerator systems, soil, decaying vegetation, farm silage, fecal material, freshwater, low salinity seawater.
Listeria monocytogenes - detection/identification?
Can grow on MacConkey, unlike other gram positives. Listeria agars, low temperature growth, Henry Illumination.
Listeria monocytogenes - prevention?
Pasteurization of milk.