Table 2.
Distribution of PEV-9 detected by RT-PCR in tissues of experimental pigs (two pigs examined at each time point)
| Group | dpi | Clinical signs | Serum | Faeces | Liver | Spleen | Kidney | Heart | Lung | Stomach | Lymph node | Cerebrum | Cerebellum | Brain stem | Spinal cord | Nasal cavity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
2 |
+/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
| 2 |
4 |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
| 3* |
6 |
+/− |
+/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
−/− |
+/− |
−/− |
| 4 |
8 |
+/− |
+/+ |
+/+ |
−/− |
+/− |
−/− |
−/− |
+/− |
−/− |
−/− |
−/− |
−/− |
+/− |
+/+ |
−/− |
| 5 |
14 |
−/− |
+/+ |
+/+ |
−/− |
+/+ |
−/− |
+/− |
+/− |
−/− |
+/− |
−/− |
−/− |
+/+ |
+/+ |
−/− |
| 6 | 21 | −/− | +/+ | +/+ | −/− | −/+ | −/− | −/+ | −/− | −/− | −/− | −/− | −/− | +/+ | +/+ | −/− |
dpi, days post-inoculation; clinical signs are either present (+) or absent (−); for each entry in the table the two scores represents the presence (+) or absence (−) of viral gene detected by RT-PCR in the two pigs of each experimental group; * indicated the group in which the clinical sign of the pig is only pyrexia.