Research Article

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.

CohortIsolate codeAge (years)SexRelatives in healthcare facilityHospitalization during last yearUse of Ab in the last yearResistance pattern

Non-hospital personnel (community)2C20FNNYAMP, E
3C21FNNYAMP
6C21FYNNAMP
7C20FNNYAMP
10C19FNNYAMP
13C21FYNYAMP
14C21FYNNAMP, AMC
15C21FNNNAMP
17C19FNNYAMP
18C19FNNN -
19C22FNNYAMP, AMC
22C22MNNYAMP
24C21MNNYAMP
25C21MYNNAMP
27C22MNNYAMP
29C22MYNNAMP
35C21MNNNAMP
41C23FNNNAMP
45C20FNNNAMP
50C24FNNY -
54C22FNNYAMP, AMC, FOX
56C22FNNNAMP
57C22FYNNAMP
63C20FNNNAMP
67C19FNNNAMP
69C21FNNNAMP

Healthcare workers2W26FYNNAMP, FOX
12W27MNNNAMP
15W26FNNYAMP
17W32MNNYE
23W24MYNNAMP
28W27FNYNAMP, FOX
30W25FNNNAMP, E
31W26MNNNAMP
33W25FNNYAMP
38W23MNNNAMP
49W23MYNNAMP
50W24MNNYAMP
55W40FY YNAMP, FOX
57W59MNNNAMP, E, DA
58W53MYNNAMP, FOX
63W31MNYNAMP, FOX
68W42MYNNAMP, AMC, FOX
70W34MNNNAMP
73W23MNNNAMP

Clinical students3S23FYYYAMP
5S22FYNYAMP
10S22FNYY -
11S22FNNN -
16S21FNNNAMP
17S23FYYYAMP, FOX
19S22FYYYAMP
24S23FNNYAMP, E
26S22FNNYAMP
30S22FYNYAMP
35S23MYNNAMP
37S23MYNYAMP
38S23MNNYAMP
39S22MNNN -
45S25MNNNAMP
48S22MNNYAMP
58S21FNYYAMP, AMC, FOX
68S22MYNYAMP, 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.