TABLE 2.
Carriage of methicillin-resistant S. aureus, methicillin-resistant S. pseudintermedius, and methicillin-resistant S. schleiferi
| Source of sample | Yr | No. of samples | No. of samples in which methicillin-resistant staphylococcia were isolated (%) [95% confidence interval] |
||
|---|---|---|---|---|---|
| MRSA | MRSP | MRSS | |||
| Individuals in the veterinary hospital | |||||
| Veterinarians | 2007 | 20 | 5 (25.0)c [8.7-49.1] | 1 (5.0) [0.1-24.9] | 0 [0-13.9] |
| 2008 | 34 | 8 (23.5)d,e [10.7-41.2] | 3 (8.8) [1.9-23.7] | 1 (2.9) [0.1-15.3] | |
| Staff members | 2007 | 21 | 3 (14.3) [3.0-36.3] | 1 (4.8) [0.1-23.8] | 0 [0-13.3] |
| 2008 | 19 | 0e [0-14.6] | 0 [0-14.6] | 0 [0-14.6] | |
| Students | 2007 | 51 | 3 (5.9)c [1.2-16.2] | 1 (2.0) [0.1-10.4] | 0 [0-5.7] |
| 2008 | 74 | 2 (2.7)d [0.3-9.4] | 7 (9.5) [3.9-18.5] | 0 [0-4.0] | |
| Staff and students in nonclinical laboratories | 2007 | 36 | 0 [0-8.0] | 0 [0-8.0] | 0 [0-8.0] |
| Companion animalsb | 2007 | 5 | 0 [0-45.1] | 3 (60) [14.7-94.7] | 0 [0-45.1] |
| Environment in the veterinary hospital | 2007 | 75 | 5 (6.7) [2.2-14.9] | 10 (13.3) [6.6-23.2] | 0 [0-3.9] |
| 2008 | 81 | 3 (3.7) [0.8-10.4] | 0 [0-3.6] | 4 (4.9) [1.4-12.2] | |
| MRSA carriers after treatment for MRSA colonization | 2007 | 10 | 2 (20) [1.2-31.7] | ||
a
MRSA, methicillin-resistant S. aureus; MRSP, methicillin-resistant S. pseudintermedius; MRSS, methicillin-resistant S. schleiferi.
b
These were kept by MRSA- or MRSP-positive persons in 2007.
c
The percentages of MRSA carriers among veterinarians and students in 2007 were not significantly different (P = 0.08).
d
The percentage of MRSA carriers among veterinarians in 2008 was significantly higher than that among students in 2008 (P < 0.01).
e
The percentage of MRSA carriers among veterinarians in 2008 was significantly higher than that among staff members in 2008 (P < 0.01).