| Chain node | N | E. coli | Enterobacter | Pseudomonas | Micrococcus | Staphylococcus | Streptococcus | Bacillus | Yeast and molds |
|---|---|---|---|---|---|---|---|---|---|
| Production | 10 | 5 | 6 | - | 5 | 2 | 3 | 2 | 2 |
| Bulking/cooling | 12 | 4 | 4 | 8 | 3 | 2 | 4 | 3 | 2 |
| Processing | 7 | 4 | 4 | - | 2 | 2 | 3 | 3 | 4 |
| Marketing | 10 | 4 | 3 | 2 | 6 | 2 | 2 | 5 | 3 |
| Total | 39 | 17 | 17 | 10 | 16 | 8 | 12 | 13 | 11 |
| Incidence (%) | 44 | 44 | 27 | 41 | 21 | 31 | 33 | 28 |