TABLE 3.
Identification of recurrent and sporadic L. monocytogenes isolates found in nondairy food samples from four different processors
| Source processor | Isolation date | Serogroup | MEE type | PFGE type (AscI) | Status |
|---|---|---|---|---|---|
| J | July 1990 | 4 | ET 09 | XXI | Recurrent |
| Aug. 1990 | 4 | ET 09 | XXI | Recurrent | |
| Oct. 1990 | 1 | ET 41 | XXVI | Sporadic | |
| Oct. 1990 | 1 | ET 48 | XXIV | Sporadic | |
| Nov. 1990 | 1 | ET 24 | XXVIII | Sporadic | |
| Jan. 1991 | 4 | ET 09 | XXI | Recurrent | |
| Jan. 1991 | 1 | ET 38 | XXVII | Sporadic | |
| Feb. 1991 | 4 | ET 09 | XXI | Recurrent | |
| Feb. 1991 | 1 | ET 10 | XXIII | Sporadic | |
| Apr. 1991 | 4 | ET 09 | XXI | Recurrent | |
| K | May 1990 | 1 | ET 42 | XXX | Recurrent |
| June 1990 | 1 | ET 42 | XXX | Recurrent | |
| Sept. 1990 | 1 | ET 13 | XX | Sporadic | |
| Nov. 1990 | 1 | ET 39 | XXX | Recurrent | |
| Feb. 1991 | 1 | ET 42 | XXX | Recurrent | |
| Mar. 1991 | 1 | ET 14 | XX | Sporadic | |
| M | June 1990 | 1 | ET 42 | XXXI | Recurrent |
| July 1990 | 1 | ET 42 | XXIX | Recurrent | |
| Sept. 1990 | 1 | ET 42 | XXXII | Recurrent | |
| N | May 1990 | 1 | ET 22 | XXV | Sporadic |
| Aug. 1990 | 1 | ET 43 | XXII | Sporadic | |
| Nov. 1990 | 1 | ET 25 | XIX | Sporadic |