Table 1.
Distribution of poxtA-carrying Enterococcus faecium and E. faecalis obtained from food-producing animals during 2008–2018 in South Korea.
| Year | No. of Isolates (poxtA-Carrying Isolates/Linezolid-Resistant Isolates/Tested Isolates) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| E. faecium (n = 3941) | E. faecalis (n = 5088) | |||||||||
| Cattle | Pigs | Chickens | Ducks | Total | Cattle | Pigs | Chickens | Ducks | Total | |
| 2008 | 0/0/54 | 0/0/57 | 0/1/70 | NT | 0/1/181 | 0/0/32 | 0/11/52 | 0/1/17 | NT | 0/12/101 |
| 2009 | 0/0/34 | 0/0/108 | 0/0/55 | NT | 0/0/197 | 0/0/32 | 0/0/87 | 0/0/58 | NT | 0/0/177 |
| 2010 | 0/0/25 | 0/0/60 | 1/3/77 | NT | 1/3/162 | 0/0/61 | 0/0/88 | 0/0/162 | NT | 0/0/311 |
| 2011 | 0/0/72 | 0/0/163 | 0/0/87 | NT | 0/0/322 | 0/0/152 | 0/0/216 | 0/1/170 | NT | 0/1/538 |
| 2012 | 0/0/53 | 0/0/148 | 2/2/168 | NT | 2/2/369 | 0/0/80 | 0/1/145 | 0/4/213 | NT | 0/5/438 |
| 2013 | 0/0/46 | 0/0/127 | 1/3/134 | NT | 1/3/307 | 0/0/85 | 0/0/166 | 0/0/196 | NT | 0/0/447 |
| 2014 | 1/2/73 | 0/0/144 | 8/20/240 | NT | 9/22/457 | 0/0/99 | 0/0/164 | 0/2/229 | NT | 0/2/492 |
| 2015 | 1/1/51 | 0/0/142 | 7/14/166 | NT | 8/15/359 | 0/2/102 | 0/5/173 | 1/5/175 | NT | 1/12/450 |
| 2016 | 0/2/57 | 0/0/152 | 4/12/162 | 6/9/82 | 10/23/453 | 0/0/95 | 0/6/200 | 0/3/181 | 1/1/174 | 1/10/650 |
| 2017 | 0/0/83 | 0/0/175 | 0/6/131 | NT | 0/6/389 | 0/0/176 | 0/3/279 | 0/3/182 | NT | 0/6/637 |
| 2018 | 0/0/104 | 0/0/267 | 0/14/245 | 0/5/129 | 0/19/745 | 0/0/166 | 0/8/233 | 2/4/240 | 1/2/208 | 3/14/847 |
| Total | 2/5/652 | 0/0/1543 | 23/75/1535 | 6/14/211 | 31/94/3941 | 0/2/1080 | 0/34/1803 | 3/23/1823 | 2/3/382 | 5/62/5088 |
NT: Not tested.