TABLE 2.
Numbers of samples, numbers of L. monocytogenes-positive samples, and distribution of RAPD types for L. monocytogenes isolates from processing plant II
| Date | Sampling site | Total no. of samples | No. of L. monocytogenes-positive samples | No. of isolates with the following RAPD types as determined with HLWL85:
|
|
|---|---|---|---|---|---|
| RAPD type 2 | RAPD type x | ||||
| February 1995 | Product | 10 | 0 | ||
| November 1996 | Product | 10 | 0 | ||
| October 1998 | Raw fish | 15 | 1 | 1 | |
| Raw fish area | 197 | 29 | 25a | 4 | |
| Smoking area | 60 | 5 | 5 | ||
| Slicing area | 211 | 9 | 7 | 2 | |
| Product | 45 | 8 | 8 | ||
| March 1999 | Raw fish | 14 | 0 | ||
| Raw fish area | 151 | 5 | 2 | 3 | |
| Smoking area | 6 | 0 | |||
| Slicing area | 135 | 0 | |||
| Product | 35 | 1 | 1 | ||
a
Fourteen of the strains were isolated from the brine solution or from surfaces of the brine injector.