Table 1.
Studies of PDCoV infection of pigs in China
| Reference | Provinces | No. of samples | Positive rate % (n) | Year | Sample types | ||
|---|---|---|---|---|---|---|---|
| PDCOV | PEDV | PDCOV + PEDV | |||||
| [59] | Gansu, Qinghai, Sichuan | 189 | 3.70 (7) | 27.51 (52) | 2.11 (4) | 2016, 2017 | Faecal samples |
| [60] | 18 provinces (Heilongjiang, Liaoning, Beijing, Hebei, Henan, Shanxi, Shandong, Hubei, Anhui, Hunan, Jiangxi, Zhejiang, Jiangsu, Guangxi, Yunnan, Fujian, Sichuan, Gansu) | 719 | 13.07 (94) | 36.72 (267) | 4.73 (34) | 2016–2018 | Faeces, faecal swabs, small intestines |
| [61] | Hebei | 871 | 11.02 (96) | – | – | 2015, 2016 | Serum |
| [62] | Heilongjiang | 319 | 11.59 (37) | – | – | 2014, 2015 | Serum |
| [63] | Guangdong | 84 | 41.7 (35) | – | – | – | Faeces, faecal swabs, small intestines |
| [64] | 9 Provinces (Henan, Shaanxi, Liaoning, Gansu, Ningxia, Chongqing, Hainan, Jiangxi, Qinghai) | 398 | 36.18 (144) | 19.60 (78) | – | 2015–2017 | Faeces |
| [65] | Heilongjiang, Jilin, Liaoning | 672 | 3.87 (26) | 19.05 (128) | – | 2017, 2018 | Faeces |
| [27] | Jiangxi | 356 | 33.71 (120) | 64.89 (231) | 19.66 (120) | 2012–2015 | Intestinal and fecal samples |
| [66] | Shaanxi, Henan, Hubei | 70 | 2.9 (2) | 84.2 (59) | 2.9 (2) | 2015, 2016 | Intestinal and fecal samples |
| [67] | Guangdong, Guangxi, Hainan | 390 | 1.28 (5) | 22.56 (88) | 1.28 (5) | 2012–2015 | Faeces |
| [15] | Henan | 177 | 69.49 (123) | 0 | 0 | 2017–2019 | Fecal samples, small intestinal content |
| [68] | Jiangxi, Zhejiang, Fujian, Guangdong, Hunan | 2987 | 27.22 (813) | 57.32 (1712) | 12.72 (380) | 2012–2018 | Faeces, intestine, milk |
| [69] | Henan | 430 | 23.49 (101) | – | 14.18 (61) | 2015–2018 | Faecal and intestinal samples |
| [70] | Guangdong | 252 | 21.8 (55) | 65.5 (165) | 0.79 (2) | 2015, 2016 | Faecal and intestinal samples |
| [118] | Guangdong | 420 | 13.33 (56) | 31.9 (134) | 5.95 (25) | 2012–2016 | Fecal samples, small intestinal content |
| [119] | Guangxi | 1547 | 4.52 (70) | 54.94 (843) | 1.1 (17) | 2013–2018 | Faecal samples |
| [71] | Jiangxi | 249 | 31.33 (78) | – | – | 2012–2015 | Faeces, faecal swabs, small intestines |
| [72] | Liaoning, Shaanxi, Shandong, Chongqing, Ningxia, Gansu | 354 | 34.2 (121) | 9.6 (34) | 1.4 (5) | 2015–2018 | Faecal samples |