Table 3.
Frequency of detection of MRSA ST398 isolates in pig farmers and pigs in the 20 tested farms and genetic lineages (MLST and spa-type) and antimicrobial resistance phenotypes of recovered isolates
| Pig Farmers | Pigs | Antimicrobial resistance | |||||
|---|---|---|---|---|---|---|---|
| Farm/number of pigs | Positive/total | MLST | spa type | Positive/total | MLST | spa type | Phenotype of resistance for non-beta-lactamsa |
| (*)Farm 1/4500 | 3/3 | ST 398 | t011 | 3/10 | ST 398 | t011 | TET,GEN,TOB,CLI,ERY,SXT |
| 1/10 | ST 398 | t011 | TET,GEN,TOB,CLI,ERY | ||||
| (*)Farm 2/1200 | 1/4 | ST 398 | t011 | 1/10 | ST 398 | t011 | TET, TOB, CLI, ERY,CIP,SXT |
| 1/4 | ST 398 | t011 | 3/10 | ST 398 | t011 | TET, CIP, SXT | |
| (**)Farm 3/180 | 1/1 | ST 398 | t034 | 5/10 | ST 398 | t034 | TET, TOB, CLI, CIP |
| (*)Farm 4/800 | 2/2 | ST 398 | t011 | 4/10 | ST 398 | t011 | TET,CLI,ERY |
| (*)Farm 5/1500 | 1/1 | ST 398 | t011 | 4/10 | ST 398 | t011 | TET,CLI,ERY,SXT |
| (**)Farm 6/2000 | 1/1 | ST 398 | t011 | 4/10 | ST 398 | t011 | TET,CLI,ERY,CIP |
| (*)Farm 7/1700 | 3/8 | ST 398 | t011 | 1/10 | ST 398 | t011 | TET,CLI,ERY,CIP |
| 1/8 | ST 398 | t011 | 1/10 | ST 398 | t011 | TET,CLI,ERY,GEN,TOB,SXT | |
| 2/8 | ST 398 | t034 | 2/10 | ST 398 | t034 | TET,CLI,ERY,CIP,TOB,SXT | |
| 1/8 | ST 398 | t1451 | TET,CLI,ERY,CIP,TOB,SXT | ||||
| (*)Farm 8/1300 | 1/2 | ST 398 | t2346 | 2/10 | ST 398 | t2346 | TET,CLI,ERY |
| 1/2 | ST 398 | t108 | 2/10 | ST 398 | t108 | TET,CLI,ERY,TOB,SXT | |
| (*)Farm 9/340 | 1/1 | ST 398 | t011 | 7/10 | ST 398 | t011 | TET,CLI,ERY |
| (**)Farm 10/5000 | 1/3 | ST 398 | t011 | 3/10 | ST 398 | t011 | TET,CLI,ERY,CIP,TOB, SXT |
| 1/3 | ST 398 | t1197 | 1/10 | ST 398 | t1197 | TET,CLI,ERY,CIP,SXT | |
| (*)Farm 11/2700 | 1/1 | ST 398 | t011 | 4/10 | ST 398 | t011 | TET,CLI,ERY |
| (**)Farm 12/1550 | 1/1 | ST 398 | t011 | 5/10 | ST 398 | t011 | TET,CLI,ERY,CIP,TOB,SXT |
| (*)Farm 13/5000 | 1/1 | ST 398 | t1197 | 1/10 | ST 398 | t1197 | TET,CLI,CIP,TOB, |
| 3/10 | ST 398 | t1456 | TET,CLI,ERY | ||||
| (**)Farm 14/5000 | 1/1 | ST 398 | t1451 | 1/10 | ST 398 | t1451 | TET,CLI,ERY,CIP,TOB |
| 2/10 | ST 398 | t011 | TET,CLI,ERY,CIP | ||||
| 1/10 | ST 398 | t1456 | TET,CLI,ERY | ||||
| (**)Farm 15/600 | 1/1 | ST 398 | t011 | 4/10 | ST 398 | t011 | TET,CLI,ERY,CIP,SXT |
| (**)Farm 16/1200 | 1/1 | ST 398 | t108 | TET,CLI,ERY,CIP | |||
| 4/10 | ST 398 | t011 | TET,CLI,ERY,CIP,TOB | ||||
| (*)Farm 17/10000 | 2/5 | ST 398 | t011 | TET,CLI,ERY,CIP,SXT | |||
| 1/5 | ST 398 | t1451 | TET,CLI,ERY,CIP, | ||||
| 2/5 | ST 398 | t108 | 8/10 | ST 398 | t108 | TET,CLI,ERY,TOB,SXT | |
| (**)Farm 18/1300 | 2/4 | ST 398 | t011 | 2/10 | ST 398 | t011 | TET,CLI,ERY,CIP |
| 1/4 | ST 398 | t011 | 1/10 | ST 398 | t011 | TET,CLI,ERY | |
| 1/4 | ST 398 | t011 | 2/10 | ST 398 | t011 | TET,CLI,ERY,CIP,SXT | |
| (**)Farm 19/1500 | 1/4 | ST 398 | t011 | 1/10 | ST 398 | t011 | TET,CLI,ERY,CIP |
| 1/4 | ST 398 | t011 | 2/10 | ST 398 | t011 | TET,CLI,ERY,CIP,GEN,TOB,SXT | |
| 1/4 | ST 398 | t1451 | 1/10 | ST 398 | t1451 | TET,CLI,ERY,CIP | |
| (*)Farm 20/4500 | 2/4 | ST 398 | t011 | 5/10 | ST 398 | t011 | TET,CLI,ERY,GEN,TOB,SXT |
| 1/4 | ST 398 | t011 | 1/10 | ST 398 | t011 | TET,CLI,ERY,GEN,TOB | |
| Total | 43/49 | 92/200 | |||||
(*) farrow-to-finish; (**) fattening
aAntimicrobials: TET, tetracycline; ERY, erythromycin; CLI, clindamycin; GEN, gentamicin; CIP, ciprofloxacin; SXT, trimethoprim-sulfamethoxazole; TOB: tobramycin