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Timeline of in vitro developmental stages of Echinococcus granulosus (G1)
| Stages | Morphology | Time (day) |
|---|---|---|
| Pre-segmentation | Invaginated protoscoleces (a) | 0 |
| Evaginated protoscoleces (b) | 0–1 | |
| Excretory canals and bladder formation (c) | 5–7 | |
| Segmentation | First proglottid formation (d) | 18–22 |
| Second proglottid formation (e) | 26–32 | |
| Testes and genital pore appearance (f) | 34–36 | |
| Third or more proglottid (g) | 40–55 |
