Gram Positive/ Gram Negative

Listeria is gram positive, meaning it is positive in the gram stain test – a test that identifies bacteria into two large groups (positive and negative.) Examples of gram negative are E coli, Salmonella, Enteros.

For more information on L moncytogenes, upgrade to premium membership and view the L. monocytogenes micro data profile.

For more information on Listeria management upgrade to premium membership and view the Listeria Management How-To.

See E coli 0157 Micro Data Profile.

For more information on Enteros, see Enteros Micro Data Profile.

See Salmonella Micro Data Profile for more information.

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