TABLE 3.
Recovery of unsporulated T. gondii oocysts by the centrifugation method
| Strain | Age (months) | No. of oocysts | Water (1 liter) | % Recovery (avg ± SD)a |
|---|---|---|---|---|
| DX | 8 | 1 × 105 | Demineralized | 71.2 ± 16.0 (3)b |
| DX | 8 | 1 × 104 | Demineralized | 43.8 ± 8.6 (3) |
| AHC1 | 7-8 | 1 × 105 | Demineralized | 80.7 ± 11.3 (3) |
| AHC1 | 7-8 | 1 × 104 | Demineralized | 55.6 ± 9.1 (3) |
| DX | 10 | 1 × 105 | Tap | 82.5 ± 8.6 (3) |
| DX | 10 | 1 × 104 | Tap | 41.4 ± 7.1 (3) |
| AHC1 | 6 | 1 × 105 | Tap | 97.2 ± 12.5 (3) |
| AHC1 | 6 | 1 × 104 | Tap | 77.2 ± 17.9 (3) |
| AHC1 | 21 | 1 × 104 | Demineralized | 93.2 ± 11.7 (3) |
a
Preparations were centrifuged at 2,565 × g.
b
The numbers in parentheses are numbers of replicates.