Table 2.
The percentages of isolates of different Staphylococcus species in different milk somatic cell count (SCC) classes
| Staphylococcus species | % Isolates in different milk SCC classes | |||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| S. agnetis/S. hyicus | 12.0 | 8.0 | 16.0 | 20.0 | 12.0 | 4.0 | 8.0 | 20.0 |
| S. aureus | 14.3 | 19.0 | 2.4 | 9.5 | 11.9 | 7.1 | 11.9 | 23.8 |
| S. chromogenes | 13.9 | 25.3 | 28.5 | 12.7 | 5.1 | 5.1 | 4.4 | 5.1 |
| S. cohnii | 33.3 | 12.5 | 16.7 | 8.3 | 12.5 | 0.0 | 8.3 | 8.3 |
| S. epidermidis | 41.9 | 11.5 | 13.6 | 7.2 | 4.7 | 4.3 | 9.0 | 7.9 |
| S. haemolyticus | 33.3 | 9.6 | 19.3 | 7.9 | 7.9 | 2.6 | 9.6 | 9.6 |
| S. simulans | 13.3 | 10.7 | 23.1 | 12.0 | 6.7 | 8.0 | 13.8 | 12.4 |
| S. warneri | 50.5 | 13.3 | 11.4 | 10.5 | 1.9 | 3.8 | 4.8 | 3.8 |
| S. xylosus | 32.6 | 20.9 | 18.6 | 11.6 | 7.0 | 2.3 | 4.7 | 2.3 |
| Other speciesa | 45.0 | 22.5 | 12.5 | 2.5 | 0.0 | 7.5 | 7.5 | 2.5 |
The SCC classes: 1: 1–50,000 cells/mL, 2: 51000–100,000 cells/mL, 3: 101,000–200,000 cells/mL, 4: 201,000–300,000 cells/mL, 5: 301,000–400,000 cells/mL, 6: 401,000–500,000 cells/mL, 7: 501,000–1,000,000 cells/mL, and 8: > 1,000,000 cells/mL
aOther species: 1 S. arlettae, 10 S. capitis, 6 S. devriesei, 4 S. equorum, 2 S. hominis, 2 S. lugdunensis, 2 S. nepalensis, 4 S. pasteuri, 1 S. rostri, 2 S. saprophyticus, 5 M. sciuri, 1 S. succinus