Effect of RH strain lineage on the production of tachyzoites in routine continuous cell culture system
| Lineage/pass numbers (range) | Harvests ⩾1 × 106 tachyzoites/ml, ⩾90% viable (%) | Dye test success (%) |
|---|---|---|
| *Data for B lineage were not available before pass 56.1 | ||
| B56–100* | 223/306 (72.3%) | 152/181 (84.4%) |
| B101–188 | 783/825 (94.9%) | 217/234 (92.7%) |
| J1–78 | 144/191 (75.8%) | 2/14 (14.3%) |
| Q1–78 | 203/222 (91.4%) | 30/35 (85.7%) |