Table 6.
Infection of placental tissue in hamsters by SV40
| SV40 strain/variant | No. litters positive/No. tested (%) | Placentas |
|
|---|---|---|---|
| No. positive/No. tested (%) | Viral loads (copies/106 cells) Range (mean)a | ||
| Baylor-1Eb | 0/3 (0) | 21/23 (91) | 233-8,010 (3,670) |
| 776-2Ec | 1/2 (50) | 2/2 (100) | 27,400-148,000 (87,700) |
| Total: | 1/5 (20) | 23/25 (92) | 233-148,000 (11,000) |
| Control | 0/1 (0) | 0/12 (0) | <5 (<5) |
a
Viral loads among virus-positive samples.
b
Harvested 2 days p.i., prior to delivery.
c
Harvested 6 days p.i., prior to delivery.