Table 1.
Prevalence and copy numbers of C. suis of pigs from provinces of China
| Province | City | Sample type | Age | Positivity | Copy /ml or swab, log10 |
|---|---|---|---|---|---|
| Fujian | Nanping | Lung | NA | 26.1% (6/23) | 3.72 (40mg) |
| Jiangsu | Yangzhou | Whole blood | Finisher pig | 33.4 % (103/308) | 2.79 |
| Rectal swab | Finisher pig | 98.2%(54/55) | 4.50 | ||
| Nantong | Whole blood | Suckling pig | 0.0% (0/11) | 0.00 | |
| Weaned pig | 20.0% (2/10) | 3.17 | |||
| Sow | 8.3% (1/12) | 2.85 | |||
| Nanjing | Nasal swab | Weaned pig* | 86.1% (93/108) | 3.65 | |
| 35d | 95.0%(57/60) | 2.61 | |||
| 49d | 76.7%(46/60) | 1.85 | |||
| 63d | 91.7%(55/60) | 4.19 | |||
| Huaian | Nasal swab | Suckling pig | 40.9% (9/22) | 2.16 | |
| Weaned pig | 18.8% (3/16) | 1.99 | |||
| Finisher pig | 58.3% (7/12) | 2.11 | |||
| Sow | 15.0% (3/20) | 1.99 | |||
| Suqian | Nasal swab | Suckling pig | 40.0% (6/15) | 2.68 | |
| Weaned pig | 38.9% (7/17) | 3.07 | |||
| Sow | 12.5% (1/9) | 2.20 | |||
| Taizhou | Nasal swab | Suckling pig | 69.2% (18/26) | 2.25 | |
| Weaned pig | 69.2 (9/13) | 2.91 | |||
| Finisher pig | 100.0% (5/5) | 3.67 | |||
| Sow | 0.0% (0/5) | 0.00 | |||
| Wuxi | Nasal swab | Suckling pig | 17.6% (3/17) | 1.99 | |
| Weaned pig | 100.0% (5/5) | 3.16 | |||
| Finisher pig | 100.0% (5/5) | 3.13 | |||
| Sow | 0.0% (0/9) | 0.00 | |||
| Yancheng | Nasal swab | Suckling pig | 43.8% (7/16) | 2.13 | |
| Weaned pig | 87.5% (7/8) | 2.95 | |||
| Finisher pig | 100.0% (3/3) | 2.89 | |||
| Sow | 30.0% (3/10) | 2.31 | |||
| Changzhou | Nasal swab | Suckling pig | 100% (7/7) | 3.48 | |
| Weaned pig | 100.0% (16/16) | 3.81 | |||
| Shanghai | Shanghai | Nasal swab | Suckling pig | 66.7% (12/18) | 2.60 |
| Weaned pig | 57.1% (8/14) | 2.12 | |||
| Finisher pig | 100.0% (10/10) | 3.89 | |||
| Sow | 20.0% (2/10) | 3.00 | |||
| Yunnan | Kunming | Nasal swab | Suckling pig | 92.3% (12/13) | 2.91 |
| Weaned pig | 100.0% (9/9) | 3.80 | |||
| Finisher pig | 86.7% (13/15) | 2.25 | |||
| NA | 90.3% (28/31) | 3.12 | |||
| Rectal swab | Suckling pig | 84.6% (11/13) | 3.03 | ||
| Weaned pig | 100.0% (9/9) | 4.14 | |||
| Finisher pig | 66.7% (10/15) | 2.58 | |||
| NA | 93.6% (29/31) | 4.54 | |||
| Zhejiang | Shaoxing | Nasal swab | Suckling pig | 89.0% (89/100) | 3.55 |
| Weaned pig | 95.0% (95/100) | 4.26 | |||
| Finisher pig | 82.0% (41/50) | 3.27 | |||
| Sow | 46.0% (23/50) | 2.97 | |||
| Shaoxing | Nasal swab | Sow | 32.0%(16/50) | 2.74 | |
| Conjunctival swab | Sow | 26.0% (13/50) | 2.56 | ||
| Rectal swab | Sow | 20.0% (10/50) | 2.89 | ||
| Whole blood | Sow | 0.0% (0/50) | 0.00 | ||
| Ningbo | Nasal swab | Weaned pig | 100.0% (50/50) | 4.86 | |
| Conjunctival swab | 100.0% (50/50) | 4.87 | |||
| Rectal swab | 100.0% (50/50) | 5.83 | |||
| Whole blood | 16.0% (8/50) | 3.50 | |||
| Henan | Xihua | Nasal swab | Sow | 28.1%(9/32) | 3.13 |
| Weaned pig | 96.8%(30/31) | 3.42 | |||
| Jilin | Changchun | Nasal swab | Weaned pig | 81.1%(53/63) | 3.94 |
| Guangdong | Jiangmen | Nasal swab | Weaned pig | 100.0%(20/20) | 4.86 |
| Sow | 90.0%(18/20) | 3.68 | |||
| Heilongjiang | Haerbin | Nasal swab | Suckling pig | 71.7%(43/60) | 2.07 |
| Shandong | Jining | Nasal swab | Suckling pig | 53.3%(16/30) | 3.68 |
| Sow | 6.7%(2/30) | 2.84 |
*represents SPF weaned pig from two experimental animal companies. NA: not applicable.