Table 2. Cryptosporidium prevalence and species identification in pigs, Japan.
| Host | Region | Age range | No. tested | No. positive (%) | No. of species | Cryptosporidium genotypes and subtypes/remarks | Reference |
|---|---|---|---|---|---|---|---|
| Pigs | Kanagawa | 1–3 mo | 232 weaned piglets | 77 (33.2) | 1 | C. parvum* utilizing immunofluorescent staining of oocysts. | Izumiyama et al., 2001 [68] |
| 6 mo | 252 fattening porkers | 1 (0.4) | |||||
| Saitama | 60 d | 4 underdeveloped | 2 | 2 | C. parvum pig genotype II or C. suis. PCR-RFLP analysis. | Yui et al., 2010 [182] | |
| 35–60 d | 40 penmates | 30 (75) | |||||
| <1 mo | 39 Pre-weaned | 7 (17.9) | NS | Utilizing immunofluorescent staining of oocysts. Totally; out of 334 examined pigs, 79 were infected (23.7%). | Yui et al. 2014 [183] | ||
| 1– <2 mo | 29 Weaned | 8 (27.6) | |||||
| 2–6 mo | 190 finished | 62 (32.6) | |||||
| Sows, Sow candidates | 76 | 2 (2.6) | |||||
| <1 mo | 55 Pre-weaned | 15 (27.3) | 2 |
C. suis; C.
scrofarum Totally; out of 344 examined pigs, 112 were infected (32.6%). |
Yui et al. 2014 [184] | ||
| 1–2 mo | 65 Weaned | 31 (47.7) | |||||
| 2–6 mo | 172 finished | 59 (34.3) | |||||
| sows | 36 | 4 (11.1) | |||||
| boars | 16 | 3 (18.8) | |||||
*Species proposed by morphology only and may therefore be questionable. C., Cryptosporidium, d, day old; mo, month; NS, not stated.