Table 3

Frequency of occurrence of daptomycin MIC values for key Gram-positive pathogens.


No. (%) of isolates inhibited at daptomycin MIC (mg/L) of:


Organism (no. tested)
≤0.06
0.12
0.25
0.5
1
2
4

S. aureus (2,746)
3 (0.1)
90 (3.3)
1.798 (65.5)
835 (30.4)
20 (0.7)
-
-
     Oxacillin-susceptible (1,946)
2 (0.1)
75 (3.9)
1,376 (70.7)
485 (24.9)
8 (0.4)
-
-
     Oxacillin-resistant (800)
1 (0.1)
15 (1.9)
422 (52.8)
350 (43.8)
12 (1.5)
-
-
Coagulase-negative staphylococci (941)
13 (1.4)
72 (7.7)
447 (47.5)
381 (40.5)
27 (2.9)
-
1 (0.1)a
     Oxacillin-susceptible (268)
6 (2.2)
30 (11.2)
129 (48.1)
90 (33.6)
12 (4.5)
-
1 (0.4)a
     Oxacillin-resistant (673)
7 (1.0)
42 (6.2)
318 (47.3)
291 (43.2)
15(2.2)
-
-
E. faecalis (646)
2 (0.3)
2 (0.3)
34 (5.3)
303 (46.9)
291 (45.0)
14 (2.2)
-
     Vancomycin-susceptible (640)
2 (0.3)
2 (0.3)
34 (5.3)
299 (46.7)
289 (45.2)
14 (2.2)
-
     Vancomycin-non-susceptible (6)
-
-
-
4 (66.7)
2 (33.3)
-
-
E. faecium (307)
-
1 (0.3)
3 (1.0)
19 (6.2)
72 (23.5)
151 (49.2)
61 (19.9)
     Vancomycin-susceptible (252)
-
1 (0.4)
3 (1.2)
18 (7.1)
60 (23.8)
120 (47.6)
50 (19.8)
     Vancomycin-non-susceptible (55)
-
-
-
1 (1.8)
12 (21.8)
31 (56.4)
11 (20.0)

a. Single strain of MS-CoNS.

Sader et al. BMC Infectious Diseases 2007 7:29   doi:10.1186/1471-2334-7-29