TABLE 1.
Prevalence of tet(X)-positive Acinetobacter species strains in samples from avian farms and adjacent environments in this study
| Province | Origin | Sampling period | No. (%) of tet(X)-positive strains by sample type (no. positive samples/no. of tested samples)a
|
||||
|---|---|---|---|---|---|---|---|
| Feces | Soil | Sewage | Dust | Total overall | |||
| Hainan | Goose farm | 2017 | 8/42 (7.1) (3) | 1/5 (20.0) | 0/5 | 0/5 | 9/57 (15.8) |
| Chicken farm | 2017–2018 | 16/149 (10.7) | 1/16 (6.3) | 3/28 (10.7) | 0/17 | 20/210 (9.5) | |
| Guangdong | Pigeon farm | 2016 | 15/40 (37.5) | 3/10 (30) | 0/4 | 18/54 (29.6) | |
| Chicken farm | 2017 | 3/182 (1.6) | 1/14 (7.1) | 0/6 | 0/6 | 4/208 (1.9) | |
| Duck farm | 2017–2018 | 62/471 (13.2) (8) | 10/107 (9.3) (3) | 10/104 (9.6) | 0/13 | 82/695 (11.9) | |
| Goose farm | 2018 | 5/40 (12.5) (3) | 0/3 | 1/13 (7.7) | 6/56 (10.7) | ||
| Guangxi | Chicken farm | 2017 | 8/60 (13.3) | 0/5 | 0/4 | 8/69 (11.6) | |
| Goose farm | 2017 | 3/25 (12.0) | 3/25 (12.0) | ||||
| Duck farm | 2017 | 2/80 (2.5) | 2/80 (2.5) | ||||
| Xinjiang | Chicken farm | 2017–2018 | 8/38 (20.1) | 2/11 (18.2) | 1/6 (16.7) (1) | 0/5 | 11/60 (18.3) |
| Shandong | Duck farm | 2018 | 9/193 (4.7) | 0/36 | 0/34 | 9/263 (3.4) | |
| Fujian | Duck farm | 2018 | 3/120 (2.5) | 0/36 | 0/36 | 3/192 (1.6) | |
| Liaoning | Chicken farm | 2018 | 2/21 (9.5) | 2/19 (10.5) | 1/9 (11.1) | 5/49 (10.2) | |
| Total | 144/1,461 (9.9) (14) | 17/252 (6.7) (3) | 19/255 (7.5) (1) | 0/50 | 180/2,018 (8.9) (18) | ||
a
Parenthetical numbers in boldface represent the numbers of tet(X)- and blaNDM-1-coharboring Acinetobacter species strains.