Origin | No. of isolates tested | No. of isolates with sul genes (percentage) | |||
---|---|---|---|---|---|
 |  | sul1 only | sul2 only | sul3 only | two sul genes |
Human stool | 26 | 6 (23%) | 12 (46%) | 0 | 8 (31%)a |
Pig carcass | 49 | 13 (27%) | 21 (43%) | 5 (10%) | 10 (20%)b |
Pig feces | 34 | 10 (29%) | 15 (44%) | 3 (9%) | 6 (18%)c |