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. 2005 May;43(5):2350–2355. doi: 10.1128/JCM.43.5.2350-2355.2005

TABLE 2.

Plant Q products tested for L. monocytogenes from December 1998 to March 1999, organized by isolate serotype, product type, and sell-by date

Item Sell-by date Source Package condition Serotype PFGE pattern
E pattern designation Where tested MPN (CFU/g)
AscI ApaI
Franks 06/03/98 Patient's refrigeratora Opened 4b GX6A16.0002 GX6A12.0057 E3 CDC <0.3
Franks 11/25/98 Patient's refrigeratora Opened 4b GX6A16.0002 GX6A12.0004 E2 CDC <0.3
Franks 11/25/98 Patient's refrigeratora Opened 4b GX6A16.0002 GX6A12.0004 E2 CDC <0.3
Franks 12/16/98 Plant Q Unopened 4b GX6A16.0002 GX6A12.0004 E2 CDC <0.3
Franks 12/20/98 Patient's refrigeratorb Opened 4b GX6A16.0002 GX6A12.0002 E0 CDC <0.3
Deli meat (turkey) Unknown Institution kitchenb Opened 4b GX6A16.0002 GX6A12.0002 E0 USDAd <0.3
Deli meat (chicken) Unknown Patient's refrigeratorc Opened Nontypeable GX6A16.0002 GX6A12.0003 E1 CDC <0.3
Deli meat (turkey) 12/23/98 Plant Q Unopened 1/2a GX6A16.0014 GX6A12.0016 CDC 2,200
Deli meat (turkey) 02/17/99 Plant Q Unopened 1/2a GX6A16.0014 GX6A12.0016 CDC 0.8
Deli meat (mixed) 02/17/99 Plant Q Unopened 1/2a GX6A16.0014 GX6A12.0016 CDC <0.3
Franks 12/16/98 Plant Q Unopened No L. monocytogenes isolated CDC
Franks 12/23/98 Plant Q Unopened No L. monocytogenes isolated CDC
Franks 02/17/99 Plant Q Unopened No L. monocytogenes isolated CDC
Deli meat (turkey) 12/23/98 Plant Q Unopened No L. monocytogenes isolated CDC
Deli meat (turkey) 12/23/98 Plant Q Unopened No L. monocytogenes isolated CDC
a

Patient symptomatic, no isolate recovered.

b

Patient isolate and food isolate were indistinguishable by PFGE.

c

No isolate; diagnoses confirmed by serology.

d

USDA: U.S. Department of Agriculture.