Table 3. Prevalence of Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) among retail meats in Korea from 2013 to 2018.
| Category | Prevalence of isolates(%; No. of isolate-positive samples/ No. of tested samples) | |||||||
|---|---|---|---|---|---|---|---|---|
| Domestic | Imported | Total | p-value1) | p-value2) | ||||
| S. aureus | MRSA | S. aureus | MRSA | S. aureus | MRSA | |||
| Beef | 13.4 (96/719) |
0.3 (2/719) |
12.9 (112/868) |
0.2 (2/868) |
13.1 (208/1,587) |
0.3 (4/1,587) |
0.8502 | 1 |
| Pork | 15.1 (101/671) |
1.0 (7/671) |
20.9* (165/789) |
1.5* (12/789) |
18.2* (266/1,460) |
1.3 (19/1,460) |
0.0048 | 0.568 |
| Chicken | 33.2* (219/659) |
0.9 (6/659) |
15.1 (84/558) |
0.0 (0/558) |
24.9* (303/1,217) |
0.5 (6/1,217) |
<0.0001 | 0.0645 |
| Total | 20.3 (416/2,049) |
0.7 (15/2,049) |
16.3 (361/2,215) |
0.6 (14/2,215) |
18.2 (777/4,264) |
0.7 (29/4,264) |
0.0008 | 0.8333 |
1)
Difference between the S. aureus positive proportions of domestic and imported meat by Chi-squared test.
2)
Difference between the MRSA positive proportions of domestic and imported meat by Chi-squared test.
*
p<0.05, difference between the proportions of meat category by Chi-squared test.
MRSA, methicillin-resistant Staphylococcus aureus.