Complex Clonal Diversity of Staphylococcus aureus Nasal Colonization among Community Personnel, Healthcare Workers, and Clinical Students in the Eastern Province, Saudi Arabia
Table 1
S. aureus carrier demographic data and isolate resistance patterns.
Cohort
Isolate code
Age (years)
Sex
Relatives in healthcare facility
Hospitalization during last year
Use of Ab in the last year
Resistance pattern
Non-hospital personnel (community)
2C
20
F
N
N
Y
AMP, E
3C
21
F
N
N
Y
AMP
6C
21
F
Y
N
N
AMP
7C
20
F
N
N
Y
AMP
10C
19
F
N
N
Y
AMP
13C
21
F
Y
N
Y
AMP
14C
21
F
Y
N
N
AMP, AMC
15C
21
F
N
N
N
AMP
17C
19
F
N
N
Y
AMP
18C
19
F
N
N
N
-
19C
22
F
N
N
Y
AMP, AMC
22C
22
M
N
N
Y
AMP
24C
21
M
N
N
Y
AMP
25C
21
M
Y
N
N
AMP
27C
22
M
N
N
Y
AMP
29C
22
M
Y
N
N
AMP
35C
21
M
N
N
N
AMP
41C
23
F
N
N
N
AMP
45C
20
F
N
N
N
AMP
50C
24
F
N
N
Y
-
54C
22
F
N
N
Y
AMP, AMC, FOX
56C
22
F
N
N
N
AMP
57C
22
F
Y
N
N
AMP
63C
20
F
N
N
N
AMP
67C
19
F
N
N
N
AMP
69C
21
F
N
N
N
AMP
Healthcare workers
2W
26
F
Y
N
N
AMP, FOX
12W
27
M
N
N
N
AMP
15W
26
F
N
N
Y
AMP
17W
32
M
N
N
Y
E
23W
24
M
Y
N
N
AMP
28W
27
F
N
Y
N
AMP, FOX
30W
25
F
N
N
N
AMP, E
31W
26
M
N
N
N
AMP
33W
25
F
N
N
Y
AMP
38W
23
M
N
N
N
AMP
49W
23
M
Y
N
N
AMP
50W
24
M
N
N
Y
AMP
55W
40
F
Y
Y
N
AMP, FOX
57W
59
M
N
N
N
AMP, E, DA
58W
53
M
Y
N
N
AMP, FOX
63W
31
M
N
Y
N
AMP, FOX
68W
42
M
Y
N
N
AMP, AMC, FOX
70W
34
M
N
N
N
AMP
73W
23
M
N
N
N
AMP
Clinical students
3S
23
F
Y
Y
Y
AMP
5S
22
F
Y
N
Y
AMP
10S
22
F
N
Y
Y
-
11S
22
F
N
N
N
-
16S
21
F
N
N
N
AMP
17S
23
F
Y
Y
Y
AMP, FOX
19S
22
F
Y
Y
Y
AMP
24S
23
F
N
N
Y
AMP, E
26S
22
F
N
N
Y
AMP
30S
22
F
Y
N
Y
AMP
35S
23
M
Y
N
N
AMP
37S
23
M
Y
N
Y
AMP
38S
23
M
N
N
Y
AMP
39S
22
M
N
N
N
-
45S
25
M
N
N
N
AMP
48S
22
M
N
N
Y
AMP
58S
21
F
N
Y
Y
AMP, AMC, FOX
68S
22
M
Y
N
Y
AMP, FOX
M: male; F: female. Y: yes; N: no. resistance determined by disk diffusion method, interpreted according to CLSI guidelines [11]. E: erythromycin, 15 μg; AMP: ampicillin, 10 μg, FOX: cefoxitin, 30 μg; AMC: amoxicillin/clavulanic acid, 20/10 μg; LZD: linezolid, 30 μg; DA: clindamycin, 2 μg. no resistance detected.