TABLE 1.
Source information for L. monocytogenes isolates used in this study
| Isolate source | Total no. of isolatesa | Total no. of epidemiogically unrelated strainsb | Reference for original source of isolates |
|---|---|---|---|
| Animal clinical case | 22 | 21 | 5 |
| Fecal samples from asymptomatic animals | 60 | 23 | 5 |
| Farm environment | 51 | 30 | 32 |
| Food environment | 77 | 10 | 38 |
| Urban or natural environment | 10 | 10 | 33 |
| Food | 100 | 57 | 9 |
| Human clinical case | 48 | 40 | 9 |
| Total | 368 | 191 |
a
All isolates were screened for detection of unique HT allelic types using the real-time PCR assay developed in this study.
b
Isolates were grouped into epidemiologically unrelated strains to reduce the effect of oversampling the same isolates multiple times.