Table 5 Downregulation of the hla gene activity of Staphylococcus aureus by three different culture preparations obtained from bovine non-aureus staphylococci (NAS) isolates from milk and teat apices (TA)
NAS species (no.)1 | SP2 [no. (%)] | SPK [no. (%)] | CS [no. (%)] | All culture preparations [no. (%)] | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Milk (45) | TA (14) | Total (59) | Milk (45) | TA (14) | Total (59) | Milk (45) | TA (14) | Total (59) | Milk (45) | TA (14) | Total (59) | |
All (59) | ||||||||||||
 Severe effect3 | 26 (57.8) | 9 (64.3) | 35 (59.3) | 7 (15.6) | 3 (21.4) | 10 (17.0) | 0 | 0 | 0 | 33 (24.5) | 12 (28.5) | 45 (25.4) |
 Moderate effect | 11 (24.4) | 1 (7.1) | 12 (20.3) | 27 (60.0) | 7 (50.0) | 34 (57.6) | 2 (4.5) | 0 | 2 (3.4) | 40 (29.6) | 8 (19.0) | 48 (27.1) |
 Slight effect | 1 (2.2) | 0 | 1 (1.7) | 3 (6.6) | 0 | 3 (5.1) | 16 (35.5) | 9 (64.3) | 25 (42.4) | 20 (14.8) | 9 (21.4) | 29 (16.4) |
 No effect | 7 (15.6) | 4 (28.6) | 11 (18.7) | 8 (17.8) | 4 (28.6) | 12 (20.3) | 27 (60.0) | 5 (35.7) | 32 (54.2) | 42 (31.1) | 13 (30.9) | 55 (31.1) |
S. chromogenes (34) | ||||||||||||
 Severe effect | 16 (57.1) | 4 (66.8) | 20 (58.8) | 3 (10.7) | 1 (16.6) | 4 (11.7) | 0 | 0 | 0 | 19 (22.6) | 5 (27.8) | 24 (23.5) |
 Moderate effect | 11 (39.3) | 1 (16.6) | 12 (35.3) | 21 (75.0) | 4 (66.8) | 25 (73.6) | 1 (3.6) | 0 | 1 (2.9) | 33 (39.3) | 5 (27.8) | 38 (37.3) |
 Slight effect | 0 | 0 | 0 | 3 (10.7) | 0 | 3 (8.8) | 9 (32.1) | 5 (83.4) | 14 (41.2) | 12 (14.3) | 5 (27.8) | 17 (16.7) |
 No effect | 1 (3.6) | 1 (16.6) | 2 (5.9) | 1 (3.6) | 1 (16.6) | 2 (5.9) | 18 (64.3) | 1 (16.7) | 19 (55.9) | 20 (23.8) | 3 (16.6) | 23 (22.5) |
S. epidermidis (11) | ||||||||||||
 Severe effect | 0 | 1 (25.0) | 1 (9.1) | 0 | 1 (25.0) | 1 (9.1) | 0 | 0 | 0 | 0 | 2 (16.7) | 2 (6.0) |
 Moderate effect | 0 | 0 | 0 | 0 | 0 | 0 | 1 (14.3) | 0 | 1 (9.1) | 1 (4.7) | 0 | 1 (3.0) |
 Slight effect | 1 (14.3) | 0 | 1 (9.1) | 0 | 0 | 0 | 2 (28.6) | 1 (25.0) | 3 (27.3) | 3 (14.3) | 1 (8.3) | 4 (12.0) |
 No effect | 6 (85.7) | 3 (75.0) | 9 (81.8) | 7 (100) | 3 (75.0) | 10 (90.9) | 4 (57.1) | 3 (75.0) | 7 (63.6) | 17 (81.0) | 9 (75.0) | 26 (79.0) |
S. simulans (14) | ||||||||||||
 Severe effect | 10 (100) | 4 (100) | 14 (100) | 4 (40.0) | 1 (25.0) | 5 (35.7) | 0 | 0 | 0 | 14 (46.6) | 5 (41.6) | 19 (45.3) |
 Moderate effect | 0 | 0 | 0 | 6 (60.0) | 3 (75.0) | 9 (64.3) | 0 | 0 | 0 | 6 (20.0) | 3 (25.0) | 9 (21.4) |
 Slight effect | 0 | 0 | 0 | 0 | 0 | 0 | 5 (50.0) | 3 (75.0) | 8 (57.2) | 5 (16.7) | 3 (25.0) | 8 (19.0) |
 No effect | 0 | 0 | 0 | 0 | 0 | 0 | 5 (50.0) | 1 (25.0) | 6 (42.8) | 5 (16.7) | 1 (8.3) | 6 (14.3) |